1. General Controls
  2. G-Airmets
  3. RAIM prediction
  4. Modifying a route on the sectional
  5. Spatial query of features
  6. Chart Printing & Options
  7. Chart Information Overlays
  8. FAA sectional chart legend

1. General Controls

Panning the charts display can be accomplished by either using the arrows in the upper left of the display, or holding the left mouse button down while moving the mouse. This will drag the chart.

display of pan control

There are several ways to zoom the chart:

2. Graphical Airmets

Enflight now displays Graphical Airmets on the charts page.
Select the 'G-Airmet' layer from the layer chooser.

The G-Airmet 3rd level menu will appear: 3rd level menu

The 'Layers' item indicates a drop-down menu of the types of Graphical Airmets available. drop-down menu

Select any type and hour and that overlay with G-Airmets for that time will appear on the chart. polygon

3. RAIM prediction

Enflight's Receiver Autonomous Integrity Monitoring feature allows you to determine if there are RAIM outages predicted for your route of flight. AC 90-100A Section 10(5) states that

"If TSO-C129 equipment is used to solely satisfy the RNAV requirement, GPS RAIM avilability must be confirmed for the intended route of flight (route and time) using current satellite information."
By using the level selector: level dropdown chooser
and the baro selector: baro dropdown chooser
you can select the type of coverage.

Select the RAIM layer, and a colored grid will show where there are predicted RAIM outages.

A red grid square indicates that sometime during the indicated time window there will be a RAIM outage lasting more that 6 minutes in that area.

4. Modifying a route on the sectional

Modifying a route
To modify the route: Click on the route modify icon <route mod icon>, in the upper right corner, <mod and nav buttons>, then click on the route.

The route will turn blue, with boxes at the trajectory change points. <blue route>

Use the mouse to move the boxes to the desired locations. <modified route>,

Vors vor icon. are 'snap points'. That is, if you move a box to a place near a vor, it will be placed at the vor.

The nearest vor, airport, or fix will be used as the new trajectory change point. If no vor, airport, or fix is at the new location, the lat/long will be used.

Click away from the route and the new route will be established. new route.

Note: you must click on the <map nav icon> to be able to get Metar/Taf popups to show after route modifications.

5. Spatial query of features

Spatial query
Click on the query icont to enable spatial queries. <map query icon> The icon should turn blue.

Position the mouse cursor on the sectional, and click and drag the left mouse button. That will draw an orange circle depicting the area of the spatial query, and send a spatial query back to the enflight server. query circle.

The results of the query will be shown in a pop-up window. query popup.

Currently, the items that are available to be queried are:

6. Chart Printing & Options

Get PDF of Chart:
Clicking the "Get PDF of Chart" link above the chart will open the controls for formatting your route into a print friendly version. The orange rectangles on the chart each represent one printable page and can be oriented to either landscape or portrait via the toggle on the left hand side. The amount of overlap can also be set via a similar toggle on the left. To position the orange page markers manually, click on the "Move Pages" button, then click and drag each page to the desired location. Once finished, click "Go back to normal panning" to lock the page positions. Clicking "Generate PDF pages as shown" will create the desired pages in a separate file that will download to your computer. This may take a few minutes so please be patient.

Show Entire Route:
Clicking the "Show Entire Route" link above the chart will center the map over your entire route.

7. Chart Information Overlays

Layer controls
There are several layers overlaid on the sectionals that can be turned on or off. Check each of the boxes to toggle that layer individually. Change the "Base Layer" to toggle between Victor Airways and Sectional charts.

display of layer selector

TFRs are shown in transparent red. These areas are clickable and contain a reference to the TFR text on the FAA site.

display of tfr

METAR and TAF data is shown for reporting airports. The METAR information is colored according to your personal minimums set in the pilot preferences section. The TAF report is shown as a colored spiral outside of the METAR circle.

Midnight is at the top of the circle, and noon is at the bottom. A white line shows local time.

For example, a TAF that was issued at 2pm for generally good weather except for thunderstorms between 4pm and 8pm would be shown as this in the Weather Briefing:

display of briefer page

and would be shown as this TAF circle on the charts display at 6:30 pm (local time):

display taf circle

Both the METAR circle and TAF ring can be clicked on to produce the textual weather.

Displays relative fuel pricing icon (a white circle with a number 1-5) as referenced by 100LL.com. Once per quarter each FBO is called; their fuel price is compared to the national average price on that day and is rated from 1 to 5. A symbol with a 1 indicates that the fuel price is relatively low while a 5 indicates that the fuel price is high relative to the national average. Clicking on the fuel icon will give you more detailed information including FBO name, hours of operation, and whether there is a self-serve capability. Within the .Fuel Stops. box at the bottom of the kneeboard is a filter used to display only stops with a desired price rating.

display of fuel icons

Class B & C
Displays the Class B airspace in light blue and Class C airspace in light yellow-green.

display of Class B and Class C

Displays the current Nexrad radar image received from the Iowa State University Mesonet system.

display of nexrad

8. FAA Sectional Chart Legend

Global Help - enflight.com

Enflight Live Beta System - (db: enflight)
Wed Feb 19th, 2020 01:41:01 UTC

Enflight Help System

Welcome to the complete Enflight Help page!

This is all of our help documentation consolidated in one place. Normally, when one is using the system, the help menu button takes you to the section related to what you are currently doing.

Table of Contents

  1. Flight Planner
    1. Airport/Facility Search
    2. Sectional Charts and Mapping
  2. Weather Briefing
  3. Weather Graphics
  4. File Flight Plan

Flight Planner

Flight Planner Quick Start

The Enflight.com flight planning system is very easy to use:

  1. Click Flight Planning on the upper menu.
  2. Choose the aircraft for which you wish to plan this flight.*
  3. Enter departure and destination airports. If you don't know an airport identifier, click Search for airport to look up the airport(s) by name.
  4. Enter a cruise altitude in hundreds of feet, e.g., 45 for 4,500 feet, 370 for FL370, etc.
  5. Choose how you'd like to get to your destination: use the default Display available routes setting unless you already know which Routing method you want.
  6. Input your estimated time of departure so the flight planner can use the correct wind forecasts for your flight. If you don't have a specific departure time, you can check the box to have the system compute your flight plan with no winds.
  7. Click Plan Flight. If you asked the system to display available routes, choose one and click Plan using selected route. If your choice requires you to select an instrument departure procedure (DP) and a standard terminal arrival route (STAR), you'll get to do so on the next page. Then the system will compute your route of flight, calculate your groundspeed based on winds aloft forecasts, and display your flight plan, suitable for printing and use in flight on your lap board.
* Make sure you have at least one individual aircraft profile defined. In order to define an individual aircraft profile, you'll also need to define an aircraft type profile which has flight performance information about the aircraft type.

The remainder of this page is the complete reference manual that fully describes the operation of the flight planner. You can print it out for your reference. If you have questions, please re-visit this page, as its content is improved and updated periodically.

Flight Planner Table of Contents

  1. Introduction
  2. My Routes
  3. Aircraft Profiles
    1. Aircraft Type Profiles
    2. Optional Information
    3. Climb, Cruise and Descent Performance
    4. Individual Aircraft Profiles
  4. Flight Planner Profile
  5. Flight Planner Input
  6. Flight Planner Routing Options
    1. User-Selected Route Specification
    2. Route Selection Interaction
    3. Example of Route Selection Interaction
    4. Samples of Routing Options
    5. Comparison of GPS/LORAN vs. RNAV Direct Routing
  7. Flight Planner Output
    1. Prologue and Summary
    2. Navigation Log
    3. Three-Line Staggered Output Format
    4. Latitude/Longitude, Fix Name, Morse Code Output Format
    5. Fix Name, Morse Code, Fuel Data Output Format
    6. Latitude/Longitude, Morse Code, Fuel Data Output Format
  8. Flight Visualization


The Enflight.com flight planning system is a powerful, optimizing route planning system which is designed to be very easy and quick for a pilot to use. It is not a graphical planner in which the pilot must manually work out a desirable routing and then either type the routing in by hand or mouse and click to enter the route - it's designed so that a pilot simply states "take me from X to Y," and the system produces a good flight plan which can be printed and flown.

The flight planner supports several automatic routing options, as well as choices of output formats. Detailed information on flight planner inputs, including using the various routing options, is given in the flight planner input documentation section below. The flight planner's output, including detailed information on each of the four available output formats and individual fields within each format is given in the flight planner output formats section.

In order to use the flight planner, you must store one or more aircraft profiles. These profiles define the performance characteristics of your aircraft. Naturally, the time and fuel calculations performed by the flight planner are based on this data, so the output of the flight planner is only as accurate as your input!

There are four types of profile information stored by the flight planner:

Flight planner profile information may be accessed from the Profile menu entry on the main page or when within the flight planning section of Enflight. (If you're in another section of the Enflight system, the Profile menu entry will take you to any profile information that is associated with that section of the system.)


My Routes

The Enflight system can store any number of personal routes of flight that you create and want to save for future use. Each route is associated with a fixed departure point and destination - personal routes for a given departure/destination pair are shown under "My routes" on the Route Selection page. If you have not yet defined any personal routes between a given departure/destination pair, the Route Selection page will show None in the space reserved for personal routes.

To create a personal route, click on "Plan Route" in the "Flight Planning" section. Enter your departure and destination points, and a cruise altitude. For "Routing method" use "Display available routes", "User-specified route wizard", or "User-specified route (text entry)". Then click "Plan Flight".

If you chose "Display available routes", you'll see a list of flight routes that the system automatically determines and any existing personal routes that have been stored by you. Click on "Enter a user-defined route" to enter a new personal route.

When you're on the "Enter Route of Flight" page, you can enter a route of flight as described in User-Selected Route Specification below. When you're done entering the route, click "Add this route to My Routes". The route will be validated, and the system will return you to the "Enter Route of Flight" page where you will see your new route listed. Or, if you'd like assistance in creating your route, click on "Use the Route Wizard".

The Route Wizard is a simplified interface that allows you to enter your own routing from one location to another. When you're done entering the route using the Wizard, click "Add this route to My Routes". The route will be validated, and the system will return you to the "Enter Route of Flight" page where you will see your new route listed.

Personal routes may either be complete routings between the departure and destination, including specific navigation aids, waypoints, and airway designations, or "prototype" routes that the flight planning system can expand into a complete routing when the personal route is accessed. Since airways and navigation aids change over time, we recommend that if at all possible you use "prototype" routes.

An example of a fully-specified route of flight from RHV to OGD would be:


The same route of flight could be specified as a "route prototype" as follows:


The "*G" element requests a GPS-direct routing between the points just before and after the "*G". The "*A" requests low-altitude airway routing between TRUCK intersection and the destination airport, OGD. Notice that if a change were to be made to V6 or V200, the fully-specified route might become invalid; the "route prototype" would automatically adjust itself to new airway designations.

Route prototypes can be input directly using the notation shown above and described in User-Selected Route Specification below, or it can be entered using the Routing Wizard.

You can only enter route prototypes using the Route Wizard. If you want to enter a fully-specified route, you must use the "Enter Route of Flight" page.

All routes that you create are stored in "My Routes". You can view the full list of routes that you've created by clicking on "Profile" while you are in the "Flight Planning" section of the web site. Each route is listed along with its departure and destination point. You can delete individual personal routes by clicking on the Delete button when you're on the Flight Planning Profile page.


Aircraft Profiles

The Enflight system stores two sets of profile information about aircraft: information pertaining to individual aircraft and information pertaining to an aircraft type. An individual aircraft is always associated with a particular aircraft type; an aircraft type may be associated with many individual aircraft. For example, if you have access to three Cessna 172R aircraft, you'd need one aircraft type profile for the C172R, and three individual aircraft profiles for N172AB, N172CD, and N172EF. If you fly only one aircraft, you'd have one aircraft type profile and one individual aircraft that refers to that aircraft type.

The individual aircraft profile contains information including the aircraft type, the color of the particular aircraft, the registration (tail) number of the aircraft, the aircraft's home base, weight and balance information specific to the aircraft, etc.

The aircraft type profile contains information that is common to all aircraft of a given type, including speed, fuel consumption, climb and descent performance information, etc. When you're utilizing aircraft profiles, please remember that similar aircraft may not have identical performance data, and you may need to input more than one aircraft type profile to accommodate these differences. For example, the performance of aircraft that appear to be similar, such as the 1962-63 Beechcraft Bonanza P35 and the 1964-65 Beechcraft Bonanza S35, can be quite different due to changes in engine configuration, etc.

Aircraft Type Profiles

You may define a number of aircraft types for use by the Enflight system. Each aircraft type stores performance characteristics and other information about a particular individual aircraft or about a group of similar aircraft (Cessna 172s with different registration numbers, for example). Because aircraft types are different from individual aircraft, you need enter this data only once for each similar group of aircraft.

Each aircraft type profile must specify a Profile Name which is different from any other type profiles which are saved by an individual pilot. Units must be selected for airspeed and fuel consumption. [Note: the current "preview" of Enflight only works in knots.]

Optionally, the pilot may include additional information that is used by different parts of the Enflight web site to enhance ease of use and to supply improved information for the pilot. The additional information includes:

Some of these fields will help you uniquely identify a performance profile - for example, a 1962 C172 does have different performance parameters from a 2002 C172. Other fields such as aircraft class, type of power, and flight classification are used by other parts of the Enflight system to supply you with better information.

Finally, the aircraft's flight performance characteristics are entered: climb, cruise, and descent information - airspeed, rate of climb or descent, and fuel consumption.

Optional Information

The FAA Aircraft Type is the four-character code which is used by Air Traffic Control facilities to identify the type of your aircraft. The Enflight system will utilize this aircraft type when filing a flight plan.

If you don't know the FAA 4-character type designator for your aircraft, click on "Search for FAA aircraft type". If you can't find the correct designation using the search function, please call your local flight service station and ask them for the proper code.

The FAA does make changes to these designations, so the designation for your aircraft may not be what you think it is. (For example, the Piper Cherokee family, formerly PA28, has now been split into a number of different codes, depending on performance - P28A, P28R, etc.)

Flight plans filed with incorrect or obsolete codes may not be accepted by the FAA. If you are unable to file a flight plan, you should re-check to see if the type designation for your aircraft has changed.

The Year, Manufacturer, Model Name, and Designation of aircraft are used to help you identify the specific kind of aircraft to which this profile applies. For example, your aircraft might be a 1978 Piper Arrow III (PA28-R201). The Year could be 1977-78 (since these are the same aircraft), the Manufacturer would be Piper, the Model Name would be Arrow III, and the Designation would be PA28-R201. Note that this Designation is different from the FAA Aircraft Type, which for this example is P28R. You may omit any one or all of these fields.

The Aircraft Class identifies the kind of aircraft:

The Aircraft Category reflects the certification type as defined by the FAA. It is one of Transport, Normal, Utility, Acrobatic, Experimental, Limited, Restricted, and Provisional. Most general aviation aircraft are Normal category; those that are certified for limited aerobatic maneuvers including spins are in the Utility category.

The Power Type lists the type of powerplant(s) with which the aircraft is equipped.

The Flight Classification refers to the size of the aircraft, and will be to determine preferred routing for certain IFR operations.

Climb, Cruise, and Descent Performance

The Climb, Cruise, and Descent performance information is used by the flight planner to compute the vertical path, speed, time, and fuel consumption for your flight. It is designed to be relatively simple to enter, yet to give the pilot considerable flexibility in accurately modeling the performance of an aircraft.

For climb and descent performance, at a given altitude, you must enter the altitude, airspeed, the climb or descent rate, and the fuel consumption. For cruise performance, since the aircraft is in level flight, only the altitude, airspeed, and fuel consumption are required. At a given altitude and given phase of flight, you must enter all three or four fields or leave all of the fields blank.

If you fly your aircraft using different profiles - for example, long range, low power (55% power), standard cruise (65%), and high speed cruise (75%) - you should consider entering the type more than once. You should choose appropriate names for the variations, for example "Arrow III - 55%", "Arrow III - 65%", and "Arrow III - 75%".

The information for each phase of flight includes sea level performance of the aircraft plus one or more additional altitudes.

The simplest performance profile would be to specify a single average performance value for climb, cruise, and descent. These average values are most often for intermediate altitudes - for example, if you typically fly somewhere between sea level and 10,000 feet, you'd enter values for 5,000 feet.

When specifying average performance values to the Enflight flight planner, enter performance information for climb, cruise, and descent at sea level and leave all other altitudes blank. These average values will then be used at any altitude. Average performance values produce flight plans which are not as accurate as plans that are computed using altitude-specific performance data, but entering these 8 numbers (3 climb, 2 cruise, 3 descent) is very quick and simple.

Please remember, when you're entering performance data, accuracy in your data will produce accurate flight plans. If you enter optimistic data ("my Cessna 172 climbs at 1500 feet per minute and cruises at 150 knots"), you'll get inaccurate flight plans.

You'll get significantly greater accuracy if you specify performance data at three or more altitudes.

For non-turbocharged piston aircraft, entering data for only three altitudes generally achieves very accurate results. You should enter data for the following altitudes:

  1. Sea level (required)
  2. The altitude at which the aircraft develops full cruise power at the selected power setting (e.g., 65%) - you can determine this altitude by looking at the performance charts in your pilot's operating handbook. Above this altitude the charts will indicate a decrease in true airspeed and in fuel consumption.
  3. Your aircraft's service ceiling - this is the altitude at which the pilot's operating handbook shows a 100 foot per minute climb rate for the aircraft. Note that you cannot directly enter data for the aircraft's absolute ceiling, which is the altitude at which the climb rate would be zero, because the climb rate must be a non-zero, positive integer. If you do want to enter data for the absolute ceiling, use 1 foot/minute for the climb rate at that altitude.

If you are flying a turbocharged aircraft, you can further improve accuracy by entering performance data at one additional altitude:

  1. The turbocharger critical altitude - the highest altitude at which which the turbocharger is able to produce sea level performance

You may, of course, enter performance data at as many altitudes as you wish.

The flight planner performs linear interpolation of all performance values between the altitudes you specify. The flight planner does not extrapolate above the highest altitude for which you enter performance information. This means that if you enter data at more than one altitude, the flight planner will not plan flights above the highest altitude at which you enter performance information. For example, if you specify cruise and descent performance to 25,000 feet and climb performance to 12,000 feet, you will only be able to plan flights up to 12,000 feet.

You can enter performance information in any altitude order, and the system will sort it out correctly. If you decide to modify an aircraft profile and wish to enter information for an intermediate altitude, that data can be entered at the end. The system will sort it and display it in order next time you re-visit the profile.

Sample Aircraft

To help understand what data you should assemble and input, here is sample data for a typical non-turbocharged single-engine aircraft, a 1978 Piper Arrow III.

Climb Performance
(100s of feet)
0 90 15 800
180 78 8 1

Note that just two data points are specified - sea level and the airplane's absolute ceiling. The aircraft has zero climb at its absolute ceiling, but since you can't enter zero, 1 ft/min is close enough. The values for all intervening altitudes are computed using linear interpolation. Note also that although climb is specified to 18,000 feet, you won't be able to plan above 16,000 feet because the Cruise and Descent tables only go up to that altitude.

Cruise Performance
(100s of feet)
0 124 10
95 137 10
130 131 9
160 123 8

The data shown is for a 65% power setting. The engine is able to deliver 65% power up to about 9,500 feet, at which point it is at full throttle. Above this altitude, performance diminishes.

Descent Performance
(100s of feet)
0 134 10 500
95 147 10 500
130 141 9 500
160 133 8 500

In this case, descent performance is derived simply from cruise performance. The pilot elects to keep the airplane's throttle in, flying with cruise power settings, and to just "point the nose down." This results in an airspeed increase of about 10 knots with a 500 ft/min descent rate, and everything else remains the same.

Individual Aircraft Profiles

Each individual aircraft profile includes the following information:

Registration number
The nationally-assigned registration number for the aircraft. You must include the national prefix, e.g., specify N12345 for a U.S. registered aircraft, C-WXYZ for a Canadian aircraft, etc.
Aircraft name
You may optionally include a name for this aircraft, such as Steve's Bonanza or N12345 @ 65% power. If you do not specify a name, the aircraft's registration number will be used.
Country of registration
Select the country of registration. Normally, you can leave this set to auto and the system will derive this from the registration number. There are a few nationalities which share prefix information, and for those nationalities only, you must specify the country of registration.
Aircraft type
Choose an aircraft type from those you have available to you. If the aircraft type you wish to use for the current individual aircraft is not shown, click Add new aircraft type and you'll be permitted to add an aircraft type either by selecting it from aircraft type profiles that are available in Enflight's library or by defining your own aircraft type. Once you've added the desired aircraft type, you'll automatically be returned to the Add Individual Aircraft page.
Choose the appropriate US equipment suffix for this aircraft from the list shown. If the aircraft is designated a Heavy aircraft, check the appropriate box.
Aircraft base and trim colors
Select the aircraft's base (dominant) color and up to four trim colors from the lists shown. If the color you wish to specify is not listed, choose the nearest equivalent from the lists. Only the colors given in the lists are accepted by FAA computers.
Home base
Enter the 3 or 4-character designator for the aircraft's home base. If you don't know the identifier, click Search for airport and a pop-up search box will appear that allows you to search for the airport by name. You may then click on the identifier of your airport and the text box on the form will be filled in with your choice.
Default aircraft
Check this box if this is the aircraft you fly most frequently. You may choose only one default aircraft. It will be the one that's selected each time you log in to the Enflight system. That selection will appear when you request a flight plan, weather briefing, or to file a flight plan. All your other aircraft will appear in a selector, and by simply choosing another aircraft, you'll select that aircraft for the rest of the session (or until you choose another aircraft).


Flight Planning Profile

Three preference items may be selected using the Flight Planning Profile page, accessible from the main menu:

Plan output formats, described in detail here:
Staggered 3-line
Two-line: Lat/Lon, Fix, Morse
Two-line: Fix, Morse, Fuel
Two-line: Lat/Lon, Morse, Fuel

Latitude/Longitude Format:
Degrees:Minutes:Seconds, for example 37:19:59
Degrees:Minutes.Tenths, for example 37:20.0
Degrees:Minutes.Hundredths, for example 37:19.98
If you are using a GPS or LORAN, you may wish to select the same output format which your navigator uses for its interface.

Include Additional Intersections:
The flight planner normally includes only intersections which have navigational significance to the pilot - when the route is switching from one airway to another, when there is a turn within an airway between navaids, or when a substantial distance is present between navigational aids. You may wish to have all intermediate intersections listed, which will give you many more checkpoints during the flight. These additional intersections are typically of interest only on long airway segments.

Caution: selecting "Yes" for "Include additional intersections" will increase the size of your flight log by a factor of two to four - you may find that it is too long for your taste.


Flight Planner Input

The flight planner requires the following information in order to plan a flight:

Aircraft name
Choose the aircraft for which you wish to plan from the list of available aircraft. If the aircraft you wish to use is not listed, you can create a new aircraft by clicking on Add new aircraft. Flight performance data for the selected aircraft will be used to plan the flight. In addition, the aircraft will be selected as the aircraft that is currently in use. This will cause information associated with this aircraft to be used to populate many elements that are needed to file a flight plan.

Departure point and Destination point
Enter the departure and destination for this flight. In most cases, the departure and destination will be airport identifiers, which may be specified as a 4-letter ICAO identifier, a 3-letter US identifier (the 4-letter ICAO identifier without the leading K), or a 3 or 4-character identifier of a smaller airport that includes both letters and digits. The planner will automatically compute climb and descent profiles based on the airport altitudes, performance characteristics of the aircraft, and requested cruise altitude.

Alternatively, either or both of the departure and destination points may be specified as a point in space. If this option is chosen, climb or descent computations are not performed for the "point in space" - the flight is assumed to start or end at the cruise altitude. Ways of defining a point in space are given below.

The "Search for airport" link will pop up a small window that allows you to search for airport(s), as well as VORs and other navigational aids. Clicking on an identifier in the search box will automatically fill in the departure or destination box in the flight planner input form and close the search window.
Cruise altitude
The cruise altitude specifies the altitude desired for the cruise segment of the flight. The altitude must be within the flight performance data that has been specified for the aircraft. The flight planner will interpolate between altitudes for which performance data is available, but it will not extrapolate above the highest altitude for which performance information is specified.

Altitudes should be specified as hundreds of feet, e.g. 35 for 3,500 feet, 125 for 12,500 feet, 370 for flight level 370, etc.

Routing method and User-specified route
The routing method selects how the planner will route the flight from departure to destination. Extensive information on routing options is given below.

Note that if an airway option is selected, the planner must be able to get from the departure point to the airway system, and from the airway system to the destination point. In general, only airports, VORs, and intersections will work in this regard - "points in space" will not be accommodated and will result in an error message.

Some airports, particularly those outside of US airspace, may not have automatic airway routing available. If automatic routing is not available for your chosen departure or destination point, you must use GPS/LORAN or RNAV routing, or must enter a user-specified route that uses *G (GPS/LORAN) or *R (RNAV) routing as the flight segment from the non-airway-routable departure point or to the non-airway-routable destination point.

Departure time
The expected departure time is used by the flight planner to select the appropriate winds aloft forecast time(s) for the flight. The time may be specified as a number of minutes from the current time, in any of 11 local time zones, or in UTC. If you are performing general planning for a future flight either more than 24 hours from the current time or for an unspecified time in the future, you may select "check for no-wind flight plan," in which case all winds aloft will be zero.

Route data entered to the flight planner is case-insensitive: you can enter upper case, lower case, or mixed case characters with no effect on processing - for example, "RHV", "rhv", "Rhv", and "rHv" are equivalent; "*A" and "*a" are treated identically by the system.

A point in space may be specified as:


Flight Routing Options

The flight planner supports the following routing options:

Display available routes
The flight planner will show you several available routes for your flight and will compute the distance for each route. These routes will include:
  • Direct (great circle)
  • My routes (personal, saved routes)
  • Low-altitude airway auto-route (may not be provided for certain airports that are distant from airways)
  • FAA preferred routes and coded departure routes if available between your departure and destination airports. Note that this information is provided by the FAA and may not represent routes that are actually in use by controllers, or even routes that are properly navigable.
Direct Routing (Great Circle)
Compute a great-circle route between the origin and destination and then locate a number of waypoints along that route. You can select how the waypoints are defined:
  • GPS/LORAN: waypoints are defined as a radial and a ground distance from a VOR/DME
  • RNAV/DME: waypoints are defined as a radial and a slant range distance from a VOR/DME; this takes into account the altitude of the aircraft and of the VOR/DME facility
  • Airport: waypoints are defined as a radial and a ground distance from an airport; airports may not be suitable for landing nor even public-use facilities
The route of flight that is generated each of these choices is identical – only the way in which the waypoints are represented on the printed flight plan differs.
Low-Altitude Airway Auto-Routing
Selects the shortest path from your origin to the destination using low-altitude (Victor) airways. No attempt is made to circumnavigate airway segments that travel over high terrain, nor airway segments on which bad weather is present. It may not be possible to be provide automatic airway routing for certain airports that are very remote from any navigational facilities.
In addition to basic low-altitude airway auto-routing, there are two additional choices that make use of the same automatic route selection:
  • Low-altitude airway auto-route with DP/STAR will display a page that prompts you to select an IFR departure procedure (DP) and/or standard terminal arrival route (STAR). You may also specify a departure or arrival routing of your own. After you've selected these routes, the system performs low-altitude airway auto-routing. See jet route auto-routing below for more information on DP/STAR selection.
  • VOR-Direct Auto-Routing is similar to Low-Altitude Airway Auto-Routing except that direct paths between VORs that are within reception range of one another are used in addition to Victor airways. Most of the route segments in a VOR-Direct plan will be Victor airways, since there are Victor airways between most VORs that are within reception range of one another. Also, in most cases, the route generated by VOR-direct auto routing will be identical to low-altitude airway auto-routing.
Jet Route Auto-Routing
Selects the shortest path from your origin to the destination using high-altitude airways (Jet Routes). Since the climb profiles of different aircraft may be quite different, it is necessary for the user to specify a route from the origin to the first fix in the jet route system and from the final fix in the jet route system to the destination airport.
The flight planner will assist you in selecting an appropriate fix by displaying available DPs and STARs, as well as VORs up to 100 nautical miles from the airports. DPs, STARs, and VORs marked with an asterisk (*) may be used as jet route transitions.
When entering a departure or arrival transition, you may specify
  • a DP or STAR (ALAMO2.SAT or LMT.MOXEE2, for example), or
  • a VOR (AUS or UBG, for example), or
  • a route (SAT JCT, which would be via direct San Antonio, direct JCT, for example).
User Selected Routing
allows the most control over flight routing and is described below.

User-Selected Route Specification

A user-selected route is specified as a series of fixes (VORs, airports, and/or waypoints). Each pair of fixes along the route may be connected by one of the following routing options:

Airport and navaid names are specified as three to five letters and digits. A waypoint may be specified as:

Latitude and longitude information is specified in the form "lat/lon" where either lat or lon may be:

For example, 37:19:59 121:49:07 could be specified with varying degrees of precision as as 37/122, 3720/12149, or 3719590/12149070.

Warning: when entering latitude or longitude information, be sure to use one of the forms above - entering a different number of digits could lead to extreme off-course errors - example: 12345 would be interpreted as 123 degrees 45 minutes rather than 12 degrees 34.5 minutes.

Within a user-specified route, whenever a fix name could be either an airport or a VOR name, the VOR is assumed. If you wish to specify the airport rather than the VOR, precede the identifier with the letter "K" - i.e., SJC is the VOR, KSJC is the airport. Within a route, climb and descent calculations are not performed for intermediate airports - they are simply used as fixes over which the flight will be planned.

There is considerable latitude when using user-selected routings. For example, if one was planning a trip from RHV (Reid-Hillview Airport, San Jose CA) to OSH (Oshkosh WI) and wished to preview a northerly route rather than the direct route, one could enter

as a user-selected route, which would route via great-circle RNAV from RHV to Boise ID, then via Victor airways to Glasgow MT, airways to International Falls MN, and airways to Oshkosh.

Route Selection Interaction

The flight planner is designed to allow you to experiment with several routes before actually printing a final flight plan. Whenever the planner computes a route, you are shown the route of flight in an abbreviated form, followed by distance information.

If the distance for the shown route is substantially longer than the great-circle distance and you entered a user-specified route, that route should be carefully examined for an incorrect intersection name. For example, a flight plan from RHV (Reid- Hillview Airport in San Jose CA) to TRK (Truckee CA) in which the user-specified routing "*A TRUST" was specified would produce this output:

    Routing options selected:  Automatic low altitude airway.
    Flight plan route:
      RHV SUNOL V195 ECA V244 LAA V10 DDC V74 LIT V54 HLI V159
    Total distance for this route is 3410.4 nm.
    Great circle distance is 143.1 nm - this route is 2284% longer.

Clearly, this routing is much too long - TRUST intersection was specified instead of TRUCK intersection.


If you wish to include DPs (Departure Procedures) and/or STARs (Standard Terminal Arrival Routes) in your flight plan, you may do so by clicking on the appropriate button. The flight planner will automatically determine the names of DPs, STARs, and nearby VORs for the selected departure and destination airports; from SFO to ORD, for example:

    Departure Point:  SFO
      Airport KSFO: San Francisco CA
    Destination:  ORD
      Airport KORD: Chicago IL (Chicago O'Hare Intl)
    Enter route: %
    Departure Procedures (DPs) from SJC:
    Standard Terminal Arrival Routes (STARs) to ORD:
      BDF* BAE* 
    "*" indicates a transition that may be used to enter or
    leave the Jet Route system.  (Do not enter the "*" as part
    of the procedure name)

You may include DPs (Departure Procedures) and/or STARs (Standard Terminal Arrival Routes) in a User Selected Routing, for example:

    Enter route: LOUPE8.LIN *J DBL *J MCW.JVL4

that would depart San Jose using the Loupe Nine departure, Linden (LIN) transition, then automatically routed via jet airways to Red Table (DBL), by jet airways to Mason City (MCW), then via the Janesville Four arrival into O'Hare. The route produced by the planner would be:


Example of Route Selection Interaction

The pilot can use the interactive nature of the flight planner to great advantage. Let us examine several possible routes that the planner could generate for a flight from RHV to TRK.

Selecting Low-Altitude Airway Auto-Routing or using the "*A" routing option for automatic low-altitude airways would produce the following routing:


Examining a sectional would show that the portion of this route that goes over the Sierra Nevada mountains takes a path over relatively hostile terrain. A better solution might be to fly to Sacramento and then to Truckee, which could be specified by the user-selected route "*A SAC *A". The result:


Unfortunately, this also travels over hostile terrain. Choosing a slightly different point along the route would cause the routing to go via airways that are very near to Interstate 80, which is a better choice in terms of safety. Specifying "*A SIGNA *A" would yield:


Comparing the distance of this route, 160.1 nautical miles (12% longer than a great circle, which is 143.1), to the first (*A) routing, which was 152.6 nautical miles (7% longer than great circle), would tell you that a more conservative route would add only 7.5 nautical miles to the trip.

Now let us examine a flight from RHV to STS (Santa Rosa, CA). Selecting Low-Altitude Airway Auto-Routing or utilizing the "*A" routing for automatic low-altitude airways would produce the following routing:


The pilot might prefer to avoid the San Francisco Terminal Control Area, so a departure via the SUNOL intersection is requested using the user-specified route "SUNOL *A":


Unfortunately, V301 goes from SUNOL to Oakland, so the pilot chooses to revise the routing request to "SUNOL *G SGD *A", which utilizes a great-circle (straight-line) routing from SUNOL to the Scaggs Island VOR (SGD):


The pilot then realizes that the automatically-selected route from Scaggs Island VOR (SGD) to Santa Rosa airport is direct, and the pilot would prefer an airway to be shown for this portion of the route. "SUNOL *G SGD *A STS" produces:


Samples of Routing Options

The first example compares user-selected airway routings with automatically-selected airway routings:

     Departure point:       oak
     Destination:           dpa
     User-Specified Route:  oak v6 dpa

This specifies a flight from the Oakland Airport, which has an on-field VOR named OAK, to Chicago-DuPage Airport, which has an on-field VOR named DPA, via the airway V6. The flight plan route would be shown as:


Note that the user-specified route must include the VOR names at both ends of the flight, even though the airport and VOR names are identical. This is because the flight planner modifies the airport identifiers to begin with a "K" so it can distinguish airports from navigational aids.

Using the *A (airway) or *V (vor-direct) routing option for this example would produce a different and slightly shorter route than V6:


The second example compares different kinds of direct routings:

     Departure point:        oak
     Destination:            dpa
     User-Specified Route:   direct

A direct (great-circle) flight from Oakland to DuPage is computed. The total time and distance for this flight are the same as the great-circle path, so a comparison at the end of the plan with a great circle route is not given. No intermediate fixes are shown for the flight plan, and the flight plan route would appear as:


To get intermediate fixes, use either "Direct Routing for GPS/LORAN" (*G) or "Direct Routing for RNAV" (*R). The Direct GPS/LORAN option would produce the following flight plan route:

    KOAK LIN150001 MVA330015 BAM150085 ELY330015 DTA330042
    MTU330017 CHE330021 CYS150001 SNY330018 HCT330069 OBH360023
    OMA360043 DSM360030 IOW360026 DBQ180027 KDPA

Comparison of GPS/LORAN vs. RNAV Direct Routing

There are two routing choices that produce identical flight routes but display them with slightly different values. The Direct Routing option is available with waypoint computations for GPS/LORAN and for RNAV. The difference between the two is how the mileage from a nearby VOR to a waypoint is computed: for RNAV, the height of the aircraft above the navigation aid is taken into account in computing the distance from the VOR; for GPS/LORAN, the aircraft's altitude is not taken into account.

The distance shown for a GPS/LORAN Direct Routing is suitable for measuring on an aeronautical chart. The air distance shown for an RNAV Direct Routing is suitable for loading into an RNAV computer such as a King KNS-80, or for in-flight verification using DME.

Let us examine a Direct Routing from RHV (Reid-Hillview Airport in San Jose) to SAN (Lindberg Field in San Diego), and compare a selected waypoint for the GPS/LORAN and RNAV routing options. This plan was computed at 10,500 feet; the waypoint chosen is relatively close to the Avenal VOR.

This waypoint using Direct Routing for GPS/LORAN would be:

     3. Wpt. d117.1/210.0/2.3   |
        AVE    .-  ...-  .      |
        35:37:14 120:00:40  105 |

and using Direct Routing for RNAV, the waypoint would be:

     3. RNAV d117.1/210.0/2.8   |
        AVE    .-  ...-  .      |
        35:37:14 120:00:40  105 |

Notice that the waypoint is in exactly the same place (35:37:14N, 120:00:40W), but the mileage shown from the Avenal VOR differs - it is 2.3 nautical miles for the GPS/LORAN waypoint, and 2.8 DME for the RNAV waypoint.


Performance Requirements and Charting Hints

With the exception of Charting, all of Enflight's services run very quickly on almost any combination of computer, browser, or network connection. Using 10 year old computer equipment is not out of the question. However, to view or print sectionals or Enroute charts over the network, and to zoom and pan them requires a fairly high level of performance. Some users may not be able to take advantage of charting or chart printing without making some improvements in their equipment. The factors that affect performance, more or less in order of importance, are typically: You will probably find that if you have a slow network and a slow processor you will be able to get adequate performance if you are using Firefox and you have a lot of memory.

If you find that charting is too slow, simply select the Kneeboard radio button on the flight planning page.


Flight Planner Output

Here is detailed information on the output of the flight planner, including information on the layout and fields present in each of the four different flight log output formats.

Each flight plan which is output by the flight planning module consists of three components:

  1. The prologue, which includes:
    • the departure airport or fix
    • the destination airport or fix
    • the departure time for which the flight was planned
    • a summary of the routing options used for the plan
    • the flight plan route, which is retained for filing a flight plan
    • a summary of the fuel, time, and distance for the flight

  2. The navigation log. Four formats are available for the navigation log; these are described in section below.
  3. The summary, which includes:
    • the warning "fuel calculations do not include required reserves"
    • a summary of the fuel, time, and distance for the flight
    • the average ground speed for the flight in knots
    • if the flight plan route is not a great circle route, a comparison between the flight plan distance and the (optimum) great circle distance

The flight planner supports a number of different output formats; these are described in detail below. If you do not change your output format using stored profile options, your flight plans will be printed using the Three-Line Staggered Format.

The Three-Line Staggered Format utilizes three lines for each point in the plan and is "staggered" - the left and right portions of the flight plan refer to a given point in the plan and the center portion, which is shifted downwards by a few lines, refers to the leg of the flight which connects one point in the plan with the next.

Several different two-line-per-fix formats are also available. Due to space limitations, some of the information present in the three-line format must be omitted from the two-line formats.

Prologue and Summary

In the example below, the flight plan "RHV *A RBL *G SEA" is used - from Reid-Hillview Airport in San Jose CA via airways to Red Bluff CA then via great-circle GPS/LORAN to Seattle WA. Each flight plan output is preceded by a flight plan prologue.

    From: KRHV -- San Jose CA (Reid-Hillview Of Santa Clara County)
    To:   KSEA -- Seattle WA (Seattle-Tacoma Intl)
    Time: Wed Jun 17 17:00 (UTC)

    Routing options selected:  Automatic low altitude airway, Great circle.
    Flight plan route:
      KRHV MABRY V107 V334 ALTAM V392 SAC V23 JINGO V195 RBL LMT240024
      OED060029 EUG060041 UBG060029 BTG060013 OLM060025 KSEA
    Flight totals: fuel: 50 gallons, time: 4:50, distance 616.3 nm.

The flight plan route is automatically saved by the Enflight system and will be filled in on other forms including those used for flight plan filing and weather briefings. (The 9-character locations above are fix/radial/distance waypoints.)

A summary follows the flight plan:

    NOTE: fuel calculations do not include required reserves.
    Flight totals: fuel: 50 gallons, time: 4:50, distance 616.3 nm.
    Average groundspeed 128 knots.
    Great circle distance is 607.4 nm -- this route is 1% longer.

Navigation Log

This section describes in detail each of the four available navigation log formats:

  1. Three-line: Staggered Format
  2. Two-line: Lat/Lon, Fix, Morse (no fuel data)
  3. Two-line: Fix, Morse, Fuel (no latitude/longitude)
  4. Two-line: Lat/Lon, Morse, Fuel (no fix name)

Three-Line Staggered Output Format

Here is a sample of the three-line "staggered" output format:

        Ident  Type/Morse Code  |                        | Fuel
        Name or Fix/radial/dist |                        | Time
        Latitude Longitude Alt. | Route   Mag  KTS  Fuel | Dist
    ---+--------+---------+-----| Winds   Crs  TAS  Time |------
     1. KSJC   Apt.             | Temp    Hdg   GS  Dist |  0.0 
        San Jose CA             |--------+----+---+------| 0:00 
        37:21:42 121:55:39    1 | Direct             3.3 |   86 
    ---+--------+---------+-----| N/A     311  102  0:15 |------
     2. OAK    ---  .-  -.-     | +9 C    311  102    26 |  3.3 
        d116.8 Oakland          |--------+----+---+------| 0:15 
        37:43:34 122:13:21   55 | V301               0.7 |   60 
    ---+--------+---------+-----| N/A     288  130  0:05 |------
     3. ---    Int.             | +4 C    288  130     9 |  4.0 
                                |--------+----+---+------| 0:20 
        37:48:45 122:22:43   55 | V87                0.6 |   51 
    ---+--------+---------+-----| N/A     342  130  0:03 |------
     4. REBAS  Int.             | +4 C    342  130     8 |  4.6 
        SAUr035/8 SGDr165/14    |--------+----+---+------| 0:23 
        37:56:27 122:22:57   55 | V87                1.1 |   43 
    ---+--------+---------+-----| N/A     345  130  0:07 |------
     5. SGD    ...  --.  -..    | +4 C    345  130    14 |  5.7 
        d112.1 Scaggs Island    |--------+----+---+------| 0:30 
        38:10:46 122:22:19   55 | Direct             2.0 |   29 
    ---+--------+---------+-----| N/A     297  139  0:12 |------
     6. KSTS   Apt.             | +9 C    297  139    29 |  7.7 
        Santa Rosa CA (Sonoma C |--------+----+---+------| 0:42 
        38:30:33 122:48:42    1 |                        |    0 
    ---+--------+---------+-----|                        |------

The information on the edge (fix portion) includes the following:

      Ident  Type/Morse Code | ... | Fuel |
      Name or Fix/radial/dist| ... | Time |
      Latitude Longitude Alt.| ... | Dist |
  ---+--------+---------+----| ... |------|
   2. OAK    ---  .-  -.-.   | ... |  4.7 |
      d116.8 Oakland         | ... | 0:20 |
      37:43:34 122:13:21  103| ... |   60 |
  ---+--------+---------+----| ... |------|
   4. REBAS  Int.            | ... |  6.0 |
      SAUr035/8 SGDr165/14   | ... | 0:28 |
      37:56:27 122:22:57  100| ... |   43 |
  ---+--------+---------+----| ... |------|

Left Side (Information about the fix)

Line 1:

Line 2:

Line 3:

Right Side (Cumulative fuel/time/distance information)

Line 1:

Line 2: Line 3:

Information for waypoints is slightly different than for other fixes:

     2. Wpt. d116.8/030.0/3.1  |
        OAK    ---  .-  -.-.   |
        37:45:39 122:10:31  104|

Left Side (Information about the fix)

Line 1:

Line 2:

Line 3:

The information in the center (leg portion) includes the following:

    | Route   Mag  KTS  Fuel |
    | Winds   Crs  TAS  Time |
    | Temp    Hdg   GS  Dist |
    | V301               0.8 |
    | 170/6   288  126  0:05 |
    | -3 C    286  130     9 |

Line 1:

Line 2:

Line 3:

Note: The flight planner computes the magnetic course for each leg of the flight, which may differ from the published definition of an airway segment by a few degrees. The airway segment is defined using VOR radials, which are based on the declination of the VOR; the VOR declination does not always correspond to the magnetic variation at the VOR's location. Always consult current VFR or IFR charts for the published radial for an airway.

Latitude/Longitude, Fix Name, Morse Code (no Fuel Data) Output Format

    Ident  Freq  Latitude Longitude Location                        Total Dist
       Via                               Mag  Mag Dist TAS GS  Leg   Time Rem.
                                    Alt  Crs  Hdg   NM KTS KTS Time
 1. KRHV   Apt.  37:19:59 121:49:07 San Jose CA (Reid-Hillview Of S  0:00  616
       Direct                         1  355  355    6  90  90 0:04
 4. SUNOL  Int.  37:36:20 121:48:33 OAKr093/21 ECAr229/33            0:13  597
       V334                          65  358  358   12  90  90 0:08
 6. SAC   d115.2 38:26:37 121:33:02 Sacramento                       0:40  546
       V23       ...  .-  -.-.      115  329  329   55 130 130 0:25
10. LMT   d115.9 42:03:42 122:15:10 Klamath Falls                    2:22  323
    240.0/024.1  .-..  --  -        115  343  343   30 130 130 0:14

Line 1: information about the current fix

Line 2: more information about the current fix, and information on how to get to the next fix in the plan

Fix Name, Morse Code, Fuel Data (no Latitude/Longitude) Output Format

    Ident  Freq  Alt Name and Morse Identifier         Total Dist   Total
                     Mag  Mag Dist TAS GS     Leg  Leg  Time Rem.    Fuel
       Via           Crs  Hdg   NM KTS KTS   Fuel Time
 1. KRHV   Apt.    1 San Jose CA (Reid-Hillview Of San  0:00  616    0.0
       Direct        355  355    6  90  90    0.9 0:04
 4. SUNOL  Int.   65 OAKr093/21 ECAr229/33 SJCr009/15   0:13  597    3.0
       V334          358  358   12  90  90    1.9 0:08
 6. SAC   d115.2 115 Sacramento     ...  .-  -.-.       0:40  546    8.1
       V23           329  329   55 130 130    4.2 0:25
10. LMT   d115.9 115 Klamath Falls  .-..  --  -         2:22  323   25.2
    240.0/024.1      343  343   30 130 130    2.4 0:14

Line 1: information about the current fix

Line 2: information on how to get to the next fix in the plan:

Latitude/Longitude, Morse Code, Fuel Data (no Fix Name) Output Format

    Ident  Freq  Latitude Longitude  Fix Information    Total Dist   Total
                      Mag  Mag Dist TAS GS     Leg  Leg  Time Rem.    Fuel
       Via       Alt  Crs  Hdg   NM KTS KTS   Fuel Time
 1. KRHV   Apt.  37:19:59 121:49:07 San Jose CA (Reid-H  0:00  616    0.0
       Direct      1  355  355    6  90  90    0.9 0:04
 4. SUNOL  Int.  37:36:20 121:48:33 OAKr093/21           0:13  597    3.0
       V334       65  358  358   12  90  90    1.9 0:08
 6. SAC   d115.2 38:26:37 121:33:02  ...  .-  -.-.       0:40  546    8.1
       V23       115  329  329   55 130 130    4.2 0:25
10. LMT   d115.9 42:03:42 122:15:10  .-..  --  -         2:22  323   25.2
    240.0/024.1  115  343  343   30 130 130    2.4 0:14

Line 1: information about the current fix

Line 2: information on how to get to the next fix in the plan:


Flight Visualization

You can see a virtual "fly-through" of your flight using Google Earth technology. You must have Google Earth loaded on your computer and your computer must be connected to a high-speed Internet connection (at least 128Kbps) in order to use this feature. (Click for installation help.)

  1. Click on the "Visualize this flight" link. Google Earth should start automatically, and will center its "eye" on a line that shows the flight plan.
  2. To "fly" the flight, click on the small play button (right-pointing triangle) at the bottom of the "Places" pane in the left column.
  3. If you'd like to overlay current weather radar information, click on the "Overlay radar image" link on the flight plan page. It's slightly easier if you click on this link before you click on the "Visualize this flight plan" link. When "NOAA Composite Radar" is selected in the "Places" pane, you can vary the transparency of the radar color by sliding the slider to the right (more opaque - easier to see radar colors) or left (more transparent - easier to see the terrain).
  4. To fly the flight a second time, or if you load in radar images, you'll need to double-click on the first line of the flight description in Google Earth to select the flight.

The fly-through shows each of the waypoints in your flight plan and connects these waypoints with a purple line. The waypoints and the line are at the altitude at which the aircraft will be flying - if at any time the line disappears underground, you should consider revising the altitude at which you're flying or your route of flight. Enflight is not responsible for the visualization displayed by Google Earth. Google obtains data for its terrain database from many sources, which are believed to be accurate, but are not guaranteed in any manner.

When you close the Google Earth program, it will ask You have unsaved items in your "Temporary Places" folder. Would you like to save them in your "My Places" folder? You should click the No button in response to this dialog.

If you're done with the fly-through and you'd like to keep Google Earth running, you should delete the flight from Google Earth. Scroll up in the "Places" pane until you reach the line that reads "Flight from...to...". Click on this entry and then press the delete key. You can easily reload this flight plan (or any other) from Enflight whenever you wish. Each time Enflight generates a flight plan for you, it uses the most current navigation and wind data available, so saving old flight paths in Google Earth is not recommended.

Enflight also includes links to Google Earth on Airport Information pages.

Additional Visual Data

Individuals in the Google Earth community have contributed a number of overlays that may be of interest to pilots. Please note that the information in the contributed static data sets is not kept up to date, and that weather data must be considered to be "unofficial".

Clicking any of the links above should automatically load the data set into Google Earth.

Installing Google Earth

Google Earth is currently available for both Windows 2000/XP and Mac OS X (10.3.9+) systems. Visit the Google Earth download page to download and install the free software.

Windows PC Help

You must be running Microsoft Windows XP or Windows 2000 to use Google Earth. You cannot use Google Earth on earlier systems such as Windows 98 or Windows 95.

Windows PC Troubleshooting

We have three suggestions that you should try (in this order). Please let us know which one works for you:

  1. Plan A: Clear your Internet Explorer cache and try the link again. To clear the IE cache:
    1. In IE, on the Tools menu, click on Internet Options...
    2. In the Temporary Internet Files section, click Delete Files...
    3. Check Delete all offline content and click OK (This may take a minute or so).
    4. Click OK.
    Then try one of the Google Earth links again.
  2. Plan B: Ensure that Google Earth is running before you click a Google Earth link:
    1. Start Google Earth manually.
    2. Once Google Earth is running, click on the Visualize this flight link on Enflight.
  3. Plan "C": Save the Google Earth path description as a file and start Google Earth using that path description file:
    1. Make sure that the Google Earth program is NOT running.
    2. RIGHT-click on the Visualize this flight link.
    3. Choose Save target as... and save the file where you can find it (on your desktop, for example).
    4. When the file is saved, click Open. Google Earth should start automatically and load the file correctly. If not, continue with the next step.
    5. If Google Earth didn't load the file correctly, please make sure that Google Earth is NOT running. Then locate the file you just downloaded, enflight.kml, and double-click on the enflight.kml file.

If none of the above worked, let us know. (So far, we have not found anyone for whom at least one of the three plans has failed to work, but it's always possible.)

If you need to contact us, please send us the version information on the Internet Explorer and Google Earth you're running. To get this, click on the About Internet Explorer or About Google Earth link on the Help menu of each program. The version information should look something like:

    Version: 6.0.2900.2180.xpsp_sp_2_gdr.050301-1519

    Google Earth   3.0.0762

for the two programs.

Macintosh Help

You must be running Mac OS/X release 10.3.9 and above in order to use Google Earth.

Making Safari Work "Right" with Google Earth

If you have installed Google Earth and you use the Safari web browser, Safari may not automatically start Google Earth when you click on a Google Earth link. To fix this, download and run this script.

Macintosh Installation Help

The instructions below will help you install Google Earth. You'll only need to do this once. When you're done installing Google Earth, be sure to follow the steps above to ensure that the Safari web browser will open Google Earth files using Google Earth.

  1. Click here to access the Google Earth home page.
  2. Click on the Download Google Earth button. You'll download a file GoogleEarthMac.dmg which is a bit more than 11 megabytes.
  3. Double-click on GoogleEarthMac.dmg. Read and agree to the license agreement.
  4. You'll see a Finder window with the Google Earth icon in it. We suggest that you install it in your Applications directory. To do this, click and drag the Google Earth Icon on top of the Applications icon in the left pane of the Finder window.
  5. Close the Finder window. Drag the GoogleEarthMac.dmg file to the trash.
  6. Close the Google Earth browser window.
  7. Click on Visualize this flight at the top of your flight plan.
  8. Check Do this automatically for flies like this from now on. Select the Open with button and click Choose....
  9. Click Applications in the left pane of the "Choose Helper Application" window.
  10. Click Google Earth in the right pane of the chooser window and click Open.
  11. Click OK.

After this, you'll only need to click on the Visualize this flight link at the top of your flight plan - Google Earth will launch automatically with your flight plan loaded.

To "fly" the flight plan, click on the "play" button in the "Places" pane.

When you're done, quit Google Earth.


Info Search Help

Info Search Help

Enflight.com's airport information section contains up-to-date data on US airports as provided by the Federal Administration Information. There are three main parts to the airport information section:

The airport information section contains data on Airports, Heliports, Seaplane Bases, Gliderports, Balloonports, STOLports, and Ultralight landing facilities that are registered with the FAA. In is documentation, we'll often use the term "airport" to refer to all of these types of facilities.

Facility Search

The facility search page allows you to find airports in a number of different ways. There are two basic kinds of searches you can perform:

Match Searches

To perform a match search, enter information in at least one of the primary search fields:

Then click one of the three buttons on the bottom of the page. If your search matches more than one airport or you click on the "Search - show airport list" button, you'll see a page that lists the facilities that match your request. The organization of the listing page is described below.

If your search matches exactly one airport (if you entered the airport's FAA identifier, for example) and you click the "Search - show airport info" button, you'll be taken immediately to the airport information page for that airport. If your search matches exactly one airport and you click the "Search - show instrument procedures" button, you'll bypass the listing page and be taken directly to the page that shows available instrument procedures for that airport. In either of these cases, if your search matches more than one airport, don't worry: you'll be directed to the listing page so you can choose the airport of interest to you.

Radius Searches

The radius search feature lets you locate airports that are within a specified distance of a given point. You can specify this point using the same fields that are available for a match search; in addition, you can use a ZIPcode or the name of a city in which there are no airports - this will search for all airports within the requested radius of that city. For example, if you were to enter "Cupertino" into the city name field and do a search without specifying a radius, you'd see that there are no airports in Cupertino. However, if you ask for airports within a 50 mile radius of Cupertino, you'll get a list of 18, listed from the closest (San Jose International, 6.2 miles East of Cupertino) to the farthest (New Jerusalem airport in Tracy, CA, 47.0 miles East of Cupertino).

The radius search feature can be invaluable when you're going to a particular location but you don't know what airports are available to you. If you use a city name for a radius search, sometimes the system will find a city that isn't the one you're going to - you can usually correct this by including the name of the state. Also, a city-name search may not be as helpful as a ZIPcode search if you're going to a location in a large metropolitan area - for example, the result returned by a radius search on Los Angeles wouldn't be as specific in helping you find an airport nearest to a particular ZIPcode within the city of Los Angeles.

The results for a radius search indicate the distance and direction from the location you specify of the airports located by the system. They're sorted in order of distance from the location you specify, starting with the closest one.

Refining your search

There are a number of additional features that you can specify to either narrow or broaden the results of your search. You can narrow your search by requiring one or more of the following conditions to be met:

You can broaden the search results by including facilities other than airports, such as Heliports, Seaplane Bases, Gliderports, Balloonports, STOLports, or Ultralight landing facilities. (Try searching for all seaplane bases in California, for example. To do this, un-check the Airports box, check the Seaplane Bases box, select California as the state, and click "Search - show airport list".)

You can also broaden the search by including facilities that are not open to public use. Note that you will require permission of the owner to use any of these facilities. (Try selecting the "Include facilities that are not open to public use" box and performing the search for seaplane bases in California, for example.)

Facility Search Results page

If your search matches more than one facility or you click the "Search - show airport list" button, you'll see the Facility Search Results page which lists all matching facilities. Each entry in the facility list will have one or more hyperlinks to information about that facility:

Airport Information page

The Airport Information page gives you a wealth of information about each airport, formatted in a logical manner so you can find information that you need rapidly. The information presented here includes virtually all the information that's published for each facility in the FAA's Airport/Facility Directory, plus some information that is available from the FAA but isn't published in the A/FD. All of the information is translated to plain English to make it easy to understand. In addition to textual information, if an airport diagram is published for the facility, a reduced-size image of the diagram is included. If you click on the airport diagram, a full-size version of the diagram will open in a pop-up window.

The Airport Information page is designed to be printed from your web browser so you can take the page with you when you fly. When printed, the airport information will typically take up one to two pages. (Most airports fit on a single page.) Enflight's Airport Information page gives you more information packed into a smaller and more readable format than any other source of airport data.

There are four main sections on the Airport Information Page:

Rather than describing this information in detail here, we'll highlight a few important points.

Not all information is included for all airports; if the FAA provides certain data for a particular airport, then Enflight includes it in the Airport Information page. If particular data is not available from the FAA for a specific airport, then it is omitted.

The first part of the Basic Information section is a line that indicates the effective dates for the information. These dates correspond to the FAA's 56-day release cycle for the airport information database and for the Airport/Facility Directory.

The five nearest public-use airports and five nearest VORs are shown, with the search radius restricted to approximately 100 NM. The directional information is the bearing from the selected airport to the other airport or VOR. Note that an airport and an on-airport VOR may not actually be in the same place: the airport's location is the "Airport Reference Point,", typically the geographic center of the airport property, and the VOR's location is where the navigation aid is physically located.

Today's values for sunrise, sunset, and civil twilight (morning and evening) are shown in the airport's local time zone. Some Federal Aviation Regulations (FARs) refer to sunrise and sunset; others to "night." FAR 1.1 defines night to be the time between the end of evening civil twilight and the beginning of morning civil twilight.

If the airport has instrument approaches, these are listed in a compact way on the last line of the Facilities and communications section of the page. If you click the Instrument approaches link, you'll be taken to the Instrument Procedures page for this airport.

The Runway and lighting information section may contain a great deal of information and detail about an airport's runways. This section is organized by runway, and within each runway the two directions for the runway are listed. If a left traffic pattern is observed for a given runway end, that will be indicated in bold-face type. If the runway surface or runway markings are considered to be in good condition, this information is omitted; if either of these is in less than good condition and that information is provided by the FAA, that will be noted.

Standard acronyms are used for runway declared distance information, which is provided for certain air carrier runways. These are:
TORA - take-off run available
TODA - take-off distance available
ASDA - accelerate-stop distance available
LDA - landing distance available

Instrument Procedures page

The Instrument Procedures page lists the airport diagram, instrument approaches, IFR visual approach procedures, departure procedures (DPs), standard terminal arrival procedures (STARs), and if applicable alternate minimums and take-off minimums. The information is presented in this standard order for all airports.

At the top of the Instrument Procedures page, you'll notice that the airport identifier is a hyperlink - this link will return you to the Airport Information page for that airport. You can easily switch back and forth between the Airport Information page and the Instrument Procedures page by clicking on the "Instrument Approaches" link on the Airport Information page and on the airport's identifier on the Instrument Procedures page.

Instrument procedure diagrams are available in three different formats on Enflight:

The images are of very different sizes, and you'll notice a significant difference in load time if you're on a dial-up connection to the Internet. The PNG version is about 10 times the size of the thumbnail; the PDF version is typically 10 to 20 times the size of the PNG version. On a slow dial-up line, the thumbnail will take a second or two to load. The PNG will take 10-20 seconds. And the PDF will take several minutes to load. However, on most high-speed Internet connections, the thumbnails should load so fast that you won't notice them loading, even for airports with 50+ procedures, and individual PNGs will also load essentially instantaneously. Individual PDF files will take a few seconds to load; often, the delay you notice when loading a PDF file is dominated by the start-up time of the Adobe Acrobat Reader program.

In addition to selecting images of individual procedures to view, you can request that a group of procedures be assembled and sent as a single file. This is done by selecting the procedures you'd like to have using the checkboxes on the Instrument Procedures page. Once you've selected the charts you're interested in, click the "View selected charts: printable (PDF), opens in new window" button at the bottom of the page. The Enflight system will assemble a single Adobe PDF file containing just the charts you are have selected. These charts should simply open in another window (either a browser window or a helper application window), and you can then click "print" to print them out. There's no separate download step, no un-zipping - just select, click, wait, and print.

Mapping Help


Weather Briefing

Enflight's weather briefing system gives pilots a pre-flight briefing that fully meets FAA requirements for a pre-flight briefing, and is considered to be legally equivalent to a telephone briefing from a Flight Service Station.

Weather and NOTAM Experts

Enflight's briefing system includes two features, the Weather Expert WXpert and the Notam Expert NXpert which automatically review and customize the briefing to meet the individual pilot's needs and experience. WXpert and NXpert, along with Enflight's Plain Language Weather translator, make it very easy for a pilot to rapidly scan a complete and possibly quite long briefing, and to consistently evaluate and fully understand the briefing in just a few minutes.

Fastest Way to Brief

The Enflight system also makes it very easy to request a weather briefing. If you use the flight planner first to compute an initial route of flight and estimated time enroute, you can get a full weather briefing in just two clicks: click on Weather Briefing on the top menu, then click on the Get briefing button. You don't have to decide whether a full or abbreviated briefing should be requested - the system does that automatically based on the proposed departure time for the flight.

Briefings Areas

You can request briefings for

Types of Weather Briefings

Enflight automatically selects an Outlook Briefing when your proposed departure time is six or more hours from the time at which the briefing is requested. An Outlook Briefing does not include all the information present in a Standard Briefing. If you want a full weather briefing for a flight that will depart more than 6 hours from now, please change the departure time to be less than 6 hours from now so the system will issue you a Standard Briefing.

(The information below is excerpted from section 7-1-4 of the Airman's Information Manual.)

Three basic types of preflight briefings are available to serve your specific needs. These are: Standard Briefing, Abbreviated Briefing, and Outlook Briefing.

Outlook Briefing. You should request an Outlook Briefing whenever your proposed time of departure is six or more hours from the time of the briefing. The briefer will provide available forecast data applicable to the proposed flight. This type of briefing is provided for planning purposes only. You should obtain a Standard or Abbreviated Briefing prior to departure in order to obtain such items as adverse conditions, current conditions, updated forecasts, winds aloft and NOTAMs, etc.

Abbreviated Briefing. Request an Abbreviated Briefing when you need information to supplement mass disseminated data, update a previous briefing, or when you need only one or two specific items.

Standard Briefing. You should obtain a Standard Briefing any time you are planning a flight and you have not received a previous briefing or have not received preliminary information through mass dissemination media; e.g., TIBS, TWEB (Alaska only), etc. ... [A Standard Briefing will] provide the following information in the sequence listed, except as noted, when it is applicable to your proposed flight.

  1. Adverse Conditions
  2. VFR Flight Not Recommended [a VFR Not Recommended statement is not provided by Enflight; use our WXpert Weather Expert to evaluate the weather according to your own personal minimums]
  3. Synopsis
  4. Current Conditions
  5. En Route Forecast
  6. Destination Forecast
  7. Winds Aloft
  8. Notices to Airmen (NOTAMs) [online systems do not have access to NOTAM(L) Local NOTAM information; we do provide complete FDC NOTAMS which may be omitted from a telephone briefing from Flight Service]

Output Format and Navigation

Plain-language output for the weather briefing is divided into sections that are separated by highly visible blue section bars. Each section bar contains a number of controls.

At the far right of the section bar, there are four navigation links:

Selective Briefings

The selective briefing feature allows you to considerably shorten the size of a weather briefing so you can print out only what you need to carry with you in the aircraft. Just to the left of the navigation links in each section bar are one or more radio buttons labeled "Show:" that control what portions of the briefing will be shown when the "Display selective briefing" feature is used:

Once you select the portions of the briefing you want to include in your selective (shortened) briefing, click the "Display selective briefing" button at the beginning or end of the briefing. The Enflight system will remember your All/Selective/None choices and will retain your last setting across multiple login sessions.

Note: you should review the entire full briefing first before using the "Display selective briefing" feature, as federal regulations (FAR 91.103) require the pilot to be familiar with all available information concerning that flight.

Printing Weather Briefings

Most browsers will not print background colors in your printouts unless you change a print setting. Doing so will greatly enhance the readability of a WXpert color coded briefing. Here are instructions for finding the setting on a number of popular browsers:

Internet Explorer

Go to 'Internet Options' from the 'Tools' menu.

Click on the 'Advanced' tab at the top. Scroll down until you the 'Printing' category. Check the box labeled 'Print background colors and images' and click 'Ok' to accept the changes.

The output from the briefer will now print the color coded backgrounds.


Go to 'Page Setup' from the 'File' menu.

Check the box labeled 'Print Background (colors & images)' and click 'Ok' to accept the changes.

The output from the briefer will now print the color coded backgrounds.

Safari On Mac

Go to 'Print ...' from the 'File' menu.
Select 'Safari' from the pull-down menu above the orange circle on the illustration below.
Check the box labeled 'Print backgrounds' and click 'Print' to accept the changes.

The output from the briefer will now print the color coded backgrounds.

Weather Graphics

The Current, Forecast, and Regional Radar tabs display organized sets of thumbnail images to give you an overview of the current national weather situation, forecast weather information, and updated regional radar images. Click on any thumbnail in these pages to bring up a full-size image of the thumbnail. In the Forecast and Regional Radar sections, navigation bars on the left, right, top, and/or bottom of each full-size image move to an appropriate full-size adjacent image - adjacent in time or altitude (before or after in time; higher or lower altitude) in the forecasts, and adjacent geographically (north, south, east, west) in the radar pages. A third menu bar also allows you to navigate rapidly within full-size current or forecast charts.

The Graphic NOTAMS tabs open web sites from the FAA and the NIFC (National Interagency Airspace Information Center). The information on these sites is not under Enflight's control, and is provided by these government agencies subject to any restrictions stated on the respective web sites. The FAA and NIFC sites open in new windows - to return to Enflight, simply close the FAA or NIFC window.

The Graphic NOTAMS: FAA site is a list of current temporary flight restrictions (TFRs) sorted by state. For each TFR, you may click on the NOTAM number (e.g., FDC 3/2123) for the text of the NOTAM, and on the TFR Graphic logo next to most TFRs for a graphical plot of the TFR on a Sectional chart-like map. Downloading these maps is relatively quick. When you are viewing an individual map, you can return to the list of TFRs by pressing the backspace key.

The Graphic NOTAMS: NIFC site is somewhat more complex. The first page includes the instructions for the site as well links to major sections of the site. The simplest way to use this site is to click on the small map on the opening page.

You will then see a map of the continental US that shows all active Temporary Flight Restrictions that have been mapped. Next, click on the map to re-center it at an area of interest to you. Then use the "In" and "Out" buttons or the individual "scale" buttons between "In" and "Out" to zoom the map so you can see more or less detail.

You can use the buttons at the bottom of the map to choose to show a GNC, WAC or Sectional chart "underlay". If you're not zoomed in far enough, selecting an "underlay" will automatically zoom the map in to the first zoom level at which the underlay can be displayed. Note that underlay maps take a substantial amount of time to download, even on a high-speed connection. The GNC underlay is the the fastest one to download and should be adequate for most uses.

If you click on an individual depicted item on a map such as a red shape that denotes a TFR, the map will re-center on that area and the NOTAM text of the restriction will be displayed below the map.

Note that if there is a link below the map that says There are unmapped TFRs, you should click on that link as your flight might cross these unmapped restricted areas.

File Flight Plan

Enflight allows the pilot to rapidly file domestic (US) and international (ICAO) flight plans with the FAA:
  • VFR (visual flight rules) - US and ICAO,
  • IFR (instrument flight rules) - US and ICAO, or
  • VFR SFRA (visual flight rules, crossing domestic restricted airspace)
  • DVFR (visual flight rules, crossing national defense boundaries) - US only
Flight plans are filed using CSC DUATS. CSC DUATS transmits the flight plan directly to the FAA: for IFR flight plans, to the appropriate air route traffic control center (ARTCC), and for VFR flight plans, to the appropriate flight service station (FSS). Prior to transmission to the FAA, the flight plan may be stored in the DUATS system for some period of time. When the flight plan resides in the DUATS system and has not yet been transmitted to the FAA, the pilot may cancel the flight plan so that it never reaches the FAA. Typically, flight plans are transmitted from DUATS to the FAA approximately one hour before the flight plan's proposed time of departure. If a flight plan is submitted to the system with less than one hour before proposed departure, it is transmitted immediately to the FAA and cannot be cancelled.

A pilot may also use Enflight to close a VFR flight plan. If the pilot plans to cancel a VFR flight plan after landing using a computer on the ground, the pilot should ensure that the estimated time enroute is adjusted to allow for delays in de-planing and getting to the computer. Flight plans may be closed using Enflight Handheld, either in the air before landing or on the ground after landing. The pilot should determine whether or not suitable connectivity is available, and should be prepared to call a flight service station using 1-800-WX-BRIEF or via the radio should device connectivity not be available.
Filing a Domestic FAA Flight Plan
Typically, a pilot will first utilize Enflight's flight planner to generate a route of flight and compute an estimated time enroute for the flight. When this is done first, most of the fields in the Flight Plan form will be filled in automatically by the Enflight system. If the flight planner performed routing and time computations before a flight plan is filed, the pilot must fill in the following two fields:
  • Fuel on board (in hours and minutes, hhmm), and
  • Number aboard
If other flight plans have been filed earlier in the same Enflight session, the values for these fields will be cleared and values from prior filings will not be re-used. This is done for safety reasons, since you may have different fuel or passengers on board for each leg of your flight.

Enflight strongly recommends that a separate flight plan be filed for each leg of a multi-leg flight - i.e., whenever you land, one plan should be closed and whenever you take off a new plan should be opened. This promotes better search and rescue operations, as well as reduces the possibility that you will be overdue at your final destination because of ground delays. Note that you can file flight plans up to 24 hours in advance of departure, so it is easy to file a number of flight plans that will be flown in sequence by a single aircraft on a given day.

Several fields will be blank, and the pilot should consider filling in one or more of these fields:
  • Remarks
  • Alternate airport [for IFR flight, may be required]
  • Destination contact name
  • Destination contact phone [highly recommended]
Any of the other fields may, of course, be changed as required. The following section gives more detailed information on each field in the FAA Flight Plan form.
Field Descriptions
Tail number  Enter the tail number with the leading "N".
FAA aircraft type The FAA changes aircraft type designations regularly. If you aren't sure of your aircraft type, or your flight plan is being rejected for an invalid aircraft type, please use the Search for FAA aircraft type link to look up the current type abbreviation for your aircraft.
Departure and Destination The departure and destination may be any of the following:
  • A 3 or 4-character airport designator. You may optionally specify the leading "K" for airports with 3-character designators that are located in the U.S., although if you omit the "K" it will be automatically supplied. Thus, entering "KRHV" and "RHV" is the same. For non-U.S. airports, or airports outside the continental U.S. for which you are using a designator that does not begin with a "K", you must specify the full four character designator. For example, "CYVR" must be specified for Vancouver, Canada (not "YVR"); Kailua-Kona Hawaii may be specified as "KOA", "KKOA", or "PHKO".
    If you wish to file a composite IFR/VFR flight plan - for example, departing IFR, flying to the XYZ VOR, and then departing XYZ on a VFR flight plan to the destination airport, you should file two separate flight plans. Enflight's flight planner has features that make it easy to compute separate plans for the IFR and VFR legs of a composite flight.
  • A navaid or intersection identifier such as "SJC" or "ALTAM".
  • A point defined by fix/radial/distance as "FFFRRRDDD" - a VOR identifier ("FFF"), followed by a 3-digit radial (from) in degrees magnetic ("RRR"), followed by a 3 digit distance in nautical miles ("DDD"), with no spaces between characters. For example, to specify a point 27 nautical miles east of the San Jose VOR (that's on the 090 radial), specify "SJC090027".
  • A point defined by latitude and longitude in the form ddmm/dddmm, for example "3720/12149".
Cruise altitude Specify in hundreds of feet - e.g., 10 is 1,000 feet, 370 is 37,000 feet (FL370). After selecting a VFR SFRA flight plan, this field will appear as VFR/XXX.
Departure time You may enter this value as minutes from now, as hours and minutes (HHMM) in your local time zone, or as hours and minutes (HHMM) in UTC time. For your convenience, the current UTC time is displayed on Enflight.com's menu bar.

Please note that more flight plan filing errors are made in this field than in any other - unless you are quite comfortable with using UTC, it is suggested that you use "minutes from now" or local time. Another common error in this field is specifying a time that is very close to the current time - but, in fact, is a few minutes in the past. The system will gladly accept a flight plan up to 24 hours in advance, so if you file a flight plan for what appears to be "now", but is actually even slightly in the past, the proposed time will be 23+ hours from now, and the flight plan will not be available in FAA systems for 22+ hours.
Route Normally, this field will be filled in by the flight planner, if you use the planner before filing the flight plan. Leave this field blank to specify a great circle (GPS-direct) routing.
Alternate airport For IFR flight plans, an alternate airport may be required by FAR 91.169. VFR flight plans typically should not specify an alternate airport, although this may be done at the pilot's discretion.
Duration of flight If the pilot previously used the Enflight flight planner, this value will have been computed automatically. The pilot may wish to add additional "slack time" to this value, particularly for VFR flights in which delays may occur (sightseeing, extra time to close the flight plan after landing, etc.).
True air speed Specify a value in knots true air speed. Mach number airspeeds will be supported in the near future.
Fuel on board Specify a value in hours and minutes.
Pilot name and address The pilot name cannot be changed; it is associated with your Enflight account, as well as with your DUATS account. The address used is the one that's associated with your Enflight account. If the address that is printed in the flight plan confirmation isn't correct, you can change your address using the Account page, which is accessed from the Home page.
Pilot phone Generally, your "base" telephone number; may be your cellular telephone number. The default value for this field is stored in your account profile.
Aircraft home base If you use the flight planner before filing your flight plan, the aircraft home base will be automatically filled in from the profile information of the aircraft you used for the flight plan.
Number aboard Total number of people on board, including crewmembers.
Aircraft color Enflight separates the base (dominant) color of the aircraft from the trim color(s) of the aircraft. Standard FAA colors are available; if your aircraft is painted in a color that is not listed, choose the nearest available "official" color. If you use the flight planner before filing your flight plan, the aircraft color will be automatically filled in from the profile information of the aircraft you used for the flight plan.
Destination contact The (optional) name and (optional) telephone number at which the pilot may be contacted at the destination. Leaving the name blank and entering the pilot's cellular telephone number in the destination contact phone is a common use of these fields.
File There are separate buttons to file VFR, IFR, VFR SFRA, and DVFR flight plans. Choose the one appropriate to your flight. In areas like Washington DC it is now necessary to file an IFR or SFRA VFR flight plan for most flights (see the applicable TFR's). To do so, simply choose the 'File VFR SFRA Flight Plan' button. It is also desirable to add 'VFR SFRA Flight Plan' to the remarks section for such flights.
International (ICAO) Flight Plans
The ICAO (International Civil Aviation Organization) flight plan has a number of differences from the US Domestic flight plan. The help text below provides information on the fields that are specific or different in ICAO flight plans.
Flight Rules Required. Specify IFR or VFR only. DVFR is not an option for international flight plans.
Type of Flight Required. Specify one of
  • General Aviation (G)
  • Scheduled Service (S)
  • Non-Scheduled Air Transport (N)
  • Military (M)
  • Other (O)
Wake Turbulence Category Required. Specify Light, Medium, or Heavy.
Avionics For navigation equipment, specify Equipment Status as one of:
  • Equipment installed as listed
  • Standard, Operable (S)
  • No equipment (N)
Standard equipment is considered to be VHF RTF (VHF radiotelephone), ADF, VOR, and ILS, unless another combination is prescribed by the appropriate air traffic authority.

If you specify Equipment installed as listed, select from the list each of the types of navigation equipment that is installed and operable. To select multiple items, depending on the browser you are using, you may need to hold down the Ctrl key while clicking the mouse. (Ctrl-click is needed for Microsoft Internet Explorer, for example.)

Note that if you specify Standard, Operable or No equipment in the Equipment Status field, you must not select any specific types of navigation equipment. If you specify Equipment installed as listed at right, you must select at least one type of navigation equipment from the list.

If J - Data Link is selected, specify in the Remarks section the type of data link equipment carried, preceded by DAT/.

If Z - Other is selected, specify in the Remarks section the type of communications or navigation equipment carried, preceded by COM/ or NAV/ as appropriate.
Transponder Transponder codes for ICAO flight plans differ from those for domestic flight plans. The ICAO codes are:
  • N: No Transponder
  • A: Mode A - 4096 codes
  • C: Mode A - 4096 codes with mode C
  • X: Mode S - no pressure alt., no aircraft ID
  • P: Mode S - with pressure alt., no aircraft ID
  • I: Mode S - no pressure alt., with aircraft ID
  • S: Mode S - with pressure alt. and aircraft ID
If your aircraft is equipped with ADS equipment, check the "ADS capable" box; /D will be appended to the transponder type.
Airports The departure point, destination point, and alternate airport given for an ICAO flight plan must be four character ICAO international airport identifiers.

For airports in the continental United States, prefix the three-letter identifier with a "K" - for example, SFO must be entered as KSFO. Airports in Alaska and Hawaii should utilize the appropriate international identifier - for example, ANC must be entered as PANC and PHKO instead of KOA. ICAO airport identifiers for US airports may be recognized as follows:
  • Continental US - Kxxx (e.g., use KSFO for SFO)
  • Alaska - PAxx, POxx, PPxx (e.g., use PANC for ANC)
  • Hawaii - PHxx (e.g., use PHKO for KOA)
  • Puerto Rico - TJxx (e.g., use TJVQ for VQS, TJFA for X95)
  • US Virgin Islands - TIxx (use TIST for STT, TISX for STX)
For US airports with identifiers that contain one or more digits such as 1C9 or 5CA3, or an airport in Alaska, Puerto Rico, or Hawaii that does not have a designated international identifier, you must list the nearest larger US airport that utilizes a three-character alphabetic identifier (prefixed by "K") as your departure point. Then, in the Remarks section, list the airport identifier of the airport you're actually using in the form:
  • DEP/arpt - departure airport
  • DEST/arpt - destination airport
  • ALT/arpt - alternate airport
If the system rejects an international airport you have given for a destination or alternate airport, enter the nearest large airport that utilizes a four-character ICAO identifier as your destination, and in the Remarks section list your actual destination in the form DEST/arpt, or alternate in the form ALT/arpt, where arpt is the identifier of the airport of your actual destination.
Emergency Equipment Check zero or more boxes in each category to indicate the type(s) of Emergency Radio, Survival Equipment, and locator technologies for Life Jackets available.
Dinghies Indicate the number of dinghies on board (leave blank if zero), whether or not the dinghies are covered, the total capacity of the dinghies, and the color of the dinghies. Note that the dinghie color is only four characters, so enter only the dominant color of the dinghie, i.e., enter "Y" for yellow.
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