FlightPlanner is designed to help you prepare a navigation and flight plan for the specified aircraft and to print the information for use on-board the flight. Weight and Balance data may also be checked. A number of separate aeronautical calculations can also be performed.

First select the aircraft for the flight by highlighting it's name in the list. Data is currently provided for eight aircraft. These include:

If your aircraft is not in this list you can add it's performance data using information from the Pilot's Operating Handbook (POH).

Next, you will need to create the flight plan or use an existing plan you created previously. Click either the name of the plan in the Flight Plan list or the Add New Flight Plan button. Creating a new flight plan is easy. You can key it in by hand but the easiest way is to bring up the Sectional Chart for the region and to click on the chart's Airports, VOR's, VFR fixes, etc. that form the checkpoints along your route. Once the navigation route is defined you can have the program suggest the altitudes for each leg (which you should verify of course) using a built-in terrain elevation database. FlightPlanner already knows the distance and courses between each of the legs automatically. Next, enter the winds aloft. Decide if you want to see the separate legs for climb and descent as is recommended. Lastly, FlightPlanner will calculate and verify the performance of the aircraft along the route. Verify weight and balance, get the departure and destination airport frequencies, prepare the FSS flight plan filing form, print the information and take it all with you.

Reform Data Files

The Reform Data File function allows you to 'fix' any structural errors in the data files that may occur as a result of power interruptions during critical data update procedures or due to disk media problems. The window shows the current capacity of the data file and permits you to overwrite this field with a number of your choice.

The current capacity of the file is the number of data records that can be contained before the automatic self-expansion procedure occurs when the file becomes full. If you wish to expand or contract the capacity of the file, enter a new number. Click on 'OK' to proceed with the reform process or 'Cancel' to exit. If you enter a different value for the file capacity, that number will be adjusted by FlightPlanner to verify that there is enough space to hold the current number of entries and will be increased to the closest 'prime number' greater than or equal to the value you entered.

Functions are provided for repairing both the main data file containing the aircraft and navigation plans and the identifier database.

This varies the basic rendering of the windows and screen elements. The options are 'Metal', which is the default, Motif, classic Windows, and Mac for Apple computers.

These functions are provided to assist with management of the many frames or windows that can appear on the screen. You may tile all windows on the screen so that none overlap, iconify all windows at the bottom of the screen, or deiconify all iconified windows.

A collection of reduced Terminal Area Chart images are provided and pastelized to serve as background images. The selection of which chart appears is random. You may turn this feature on and off. Each time the feature is turned back on, a new random selection is made.

A number of basic aeronautical calculations can be performed here. Click on the tab to bring the window for that calculation to the front. The radio buttons to the right of the field description control which fields are to be calculated using data provided in the other fields. Fields in a light blue background are always calculated fields and cannot be selected. The input and output units for most of the calculated fields can be selected using the pull down menus at right. For some of the calculations, radio buttons are used to select and/or display the units of the result. For example, Latitude can be North or South. Buttons at the bottom of each window initiate the calculation and clear the data fields. Where possible, a blank field on input is treated as having a value of zero.

Simple time, speed, distance, and/or fuel flow and fuel amount is computed here. Select the time radio button and enter either speed and distance or fuel flow and fuel amount. Clear the redundant information before calculating. Select speed and calculate it from time and distance. Select fuel amount and calculate it from time and fuel flow. etc.

This is the classic wind triangle calculation. Enter course, true air speed, wind direction and velocity. The wind correction angle, required heading to maintain the course, and aircraft ground speed are calculated. Alternately, select wind direction and velocity and those will be calculated from the other parameters.

This is a general weight and balance spreadsheet for no specific aircraft. Enter the various weights and arms and the totals are computed for each row and column. Weight is usually in pounds and Arm in inches.

Required rate of climb is calculated from true air speed, desired elevation change, and distance over which the climb is to take place. The necessary ground distance can also be computed when specifying the rate of climb along with the true air speed and desired elevation change.

From Pressure Altitude, Calibrated Airspeed, and Indicated Air Temperature, the True Air Speed, Mach Number, and Density Altitude are calculated. This accounts for the compressibility effects of high-speed flight. For low-speed, these compressibility effects are small and the calibrated airspeed will have only a small effect on the result. The aircraft temperature recovery coefficient is assumed to be 1.0. Pressure altitude can be specifed up to 65,617 feet.

This calculates the Density Altitude from information required to compute air density. The density altitude is the altitude at which this air density will be found in the 1976 International Standard Atmosphere (ISA). The inputs are the Air Temperature, measured Air Pressure OR local given Altimeter Setting (not both), and either the Dewpoint OR Relative Humidity (specify which with the radio button). Enter also the elevation of the measurement station where these inputs were obtained. The Density Altitude will be computed as defined above as well as the Pressure Altitude. The definition of Pressure Altitude is similar, the altitude where that measured air pressure can be found in the ISA or what an altimeter will display when the Kollsman window is set to 29.92. The calculations are correct up to an altitude of 36,089 feet. Simpler approximations to the Density Altitude can be very accurate, but only when the air is dry. True Density Altitude must consider the effects of airborne moisture.

Enter Wind Velocity and Direction, and aircraft heading. The headwind and right crosswind components are calculated. The right crosswind component will be negative when the predominant wind is from the left.

Enter the latitude and longitude, and the day of the year, the approximate time in Greenwich Mean Time (GMT) of both sunrise and sunset will be given. Alternately, if you specify an identifier contained in the identifier database, its type, Airport, Fix, Navaid, or User-defined point then the latitude and longitude need not be specifed. The database contains all the airports and Navaids found in the United States.

The average wind is the weighted vector sum of the individual wind components found in the individual legs.

Wet and dry Freezing altitudes (MSL) are estimated using standard wet and dry lapse rate formulas. Wet freezing levels are in clouds, dry in clear air.

A Rhumbline is a line on the surface of the Earth that connects two points that may be traversed with a constant heading. This is opposed to a Great Circle Route that is the shortest distance but requires constant heading changes as the Great Circle is followed. For short distances the difference in distance between a Rhumbline and a Great Circle is small. For ordinary small aircraft flight plans, a Rhumbline which is followed with a constant heading is the way to go.

Enter the source and destination latitudes and longitudes and the required heading as well as the distance between them is calculated. If you know the airport identifiers in the United States, you may specify those rather than the latitude and longitude. Reverse calculations are done by clicking the radio buttons next to the desired fields before pressing the calculate button. For example, specify a source identifying airport, like JFK, a heading of 265.4, and a distance of 2268 Nautical Miles. The program will find SFO as the closest identifier.

This function is the same as for Rhumbline Navigation except that Great Circle Routes are computed. The heading shown is the initial heading. The source location or identifier cannot be computed as that is of no meaning. It is interesting to compare the distances using this and the Rhumbline Navigation calculators.

Enter the True Air Speed, Aircraft Level Flight Stall Speed, and Bank Angle. The G-Force, 360-Degree Turn Radius and Time as well as the Turn Stall Speed is computed. Still air is assumed. Gusty conditions alter the actual performance significantly.

This calculator uses the IGRF2000 (International Geomagnetic Reference Field) algorithm to estimate the Magnetic Variation at the point specified by the longitude and latitude provided. The current date as read from the computer's clock is used to make the results current. The results displayed in degrees West Or East as seen in the radio button are correct to approximately 1-2 degrees depending on location.

The calculator is available from the main menu bar. To use the calculator, enter a mathematical expression on the working line then click 'Calc'. The numerical answer will be placed in the R register. To perform another calculation, enter another expression, click on 'calc', and that answer will be placed in the R register while the previous contents of the R register will be moved to the X register. Any contents of the X register will move to the Y register, the Y will move to the Z register, the Z will move to the T, and the previous contents of the T register will be lost.

The following symbols are valid for use on the "Expression" line:

All exponentiations will be done first, followed by multiplication and division, then addition and subtraction. This order of precedence may be altered by using parentheses to specify higher priority operations. Further, the contents of the r,x,y,z, and t registers may be used in the expression. The following are examples of valid expressions:

The results will be maintained to approximately 16 digits of precision. Division by zero is not permitted.

You can use either the buttons on the keypad to enter information or use the keyboard directly. The 'Clear' key erases pending expressions on the working line.

You may also use the menu bar Copy, Cut, and Paste clipboard operations to transfer results to the car data entry screens. Do this in the same way as any other program.

There is also a handy Units Conversion calculator available from the Help menu. A number of common units can be converted into others in several categories, temperature, pressure, velocity, weight, volume, area, and distance/length. Enter the value on the left, use the boxes to select the 'from' and 'to' units, then press the convert button. All the values in the 'from' fields in each category are converted each time you press the button.

FlightPlanner uses RAM memory as it is needed up to that amount available on your computer up to 384 MB. If you have more memory than that you can alter the startup command in the shortcut used to start the program (right click on the FlightPlanner startup icon with the little arrow, not the .ico file). The -Xmx384m parameter defines that maximum. Change the 384 to whatever value is appropriate. If you experience sluggish performance or nonfunctionality of some buttons, it is possible that you have consumed all available memory. FlightPlanner will begin using virtual memory (hard disk) after the maximum has been reached. Performance at that point will be drastically reduced.

You can check this by selecting Help - About from the main menu bar. A system information window will appear showing, among other things, memory utilization information. You can click the 'Garbage Collection' button to try to free up some memory although this will normally be done automatically by the program. In any event, you can see if you have a memory consumption problem. Closing open windows will release memory. Screen graphics use alot of memory. This includes the background images on the main screen which you can disable/reenable at any time.

The navigation charts are very large images and consume huge amounts of memory. (about 100MB for each including internal graphics buffers). Screen resolution plays a part in memory consumption as well. At 1024x768 a full-screen plot uses nearly 3.2MB assuming 32-bit true color. At 1600x1200 that same image consumes about 7.7MB. With the buffering techniques used to generate the plots, these values actually go quite a bit higher.

FlightPlanner displays plots for the weight and balance calculations as well as the track for the navigation plan in top and profile views. The profile view also shows the underlying terrain elevation along the path of the plan.

In the title bar of each plot following the title will be displayed the x and y coordinates of the location of the crosshair mouse as it is placed over the plot. The coordinates are in the units of the data displayed. In this way, the mouse is acting as a digitizer on the plot. If there is no room on the title bar to see all the numbers, you should use the 'resize' menu bar function to enlarge the plot. The real time display of the coordinates currently function only when using the Metal Look & Feel.

You can select an area of a plot to zoom-in on. Use the mouse to place the cursor over one corner of a rectangle of the area of interest. While holding down the left mouse button, drag the mouse to the opposite corner and release the left button. You can restart the rectangle at any time and you can erase a displayed rectangle by clicking the right mouse button. The enclosing rectangle can be viewed as an entire plot by using the 'Crop to Box' menu item under the 'Replot' menu. A new plot will be displayed using the approximate bounds of the rectangle as the region of the plot. Note that a plot is a series of connected data points. The new plot will contain only those data points falling within the bounded rectangle and, hence, the new plot curves will not be flush with the borders of the new plot. You can return to the initial plot by selecting the 'Restore Full Plot' menu item under 'Replot'.

You can also use the 'Points' menu to toggle the display of the actual data points used to construct the line on the plot. If you see a blank plot, chances are the plot consists of a single data point. Select 'Display Data Points' to view this point. You can erase the data point display by selecting 'Hide Data Points'.

The menu bars for most of the windows contain functions for printing information prepared and formatted by the program. The Print Setup function provides access to your printer's configuration screen.

At top left of the screen is a list of aircraft types for which performance data is contained in FlightPlanner. This is an active list of single selection. You may select an aircraft by clicking on its name at any time and this will be recognized as the current active aircraft on which flight plan calculations will be based. This window cannot be closed.

Display a flight plan and click on the various aircraft. The plan will be automatically recalculated so you can see the performance differences between aircraft.

To add a new aircraft to the list, click on the Add Aircraft button. A blank aircraft window will appear. Enter an aircraft name in the Name field then use the Save Data command in the File Menu. That aircraft will be added to the list. Of course you must enter data into the various fields for this aircraft to be useful.

To edit the data for an existing aircraft you should select the aircraft by clicking on its name so that it is highlighted. Then click the Edit Selected Aircraft button. Alternately you can simply double click on the aircraft name. After making any changes to the data fields you must use the Save Data command in the File Menu to save these changes permanently and for the new values to be recognized.

To copy one aircraft and it's data to another name, first bring up the aircraft data window for editing the aircraft. Enter a new name in the Aircraft Name field. Then use the Copy to Changed Aircraft Name command in the File Menu.

To rename an aircraft, first bring up the aircraft data window for editing the aircraft. Enter a new name in the Aircraft Name field. Then use the Save Data command in the File Menu.

You can delete an aircraft by selecting its name in the list so that it is highlighted then click the Delete Selected Aircraft button at the bottom of the list. You can also delete the aircraft directly from its data window by using the Delete command in the File Menu of the aircraft's data window.

Several known performance capability categories of data are required for proper computation of the aircraft's flight plan along the defined route. This data is all readily available in an aircraft's Pilot Operating Handbook (POH).

Weight and Balance Data for the aircraft is entered in the first tabbed pane of the aircraft data window. Enter the basic empty weight and the associated arm aft of datum in the first row. This will be different for each particular airplane depending on equipment installed. Subsequent rows contain maximum allowed weight at each station and the associated arm distance aft of datum.

The permissible envelope of weight and balance is entered in the second tabbed pane. Enter the values of the corners of the polygon that defines this region. Typically, this is a graph with weight on the y-axis and center of gravity aft of datum on the x-axis.

Cruise performance is entered in the third tabbed pane. This is data from a table in the POH that gives true air speed and fuel use for various altitudes. The true air speed and fuel use is usually given for three temperatures as well, 20 degrees Centigrade below standard temperature for that altitude, standard temperature, and 20 degrees above standard temperature. Maximum power settings are assumed.

Climb performance is entered in the fourth tabbed pane. This data is in the form of best climb air speed, time required to climb, fuel consumption to climb, and distance required to climb, all for various altitudes.

Magnetic Deviation for a particular airplane in the form of it's compass card is entered in the fifth tabbed pane. The compass card lists the actual compass heading to steer for various actual magnetic headings.

The sixth tabbed pane contains miscellaneous data such as the fuel consumed during taxi, takeoff, and runup, a performance degradation factor to account for real world performance as opposed to the usually idealized data contained in a POH. A default value of 0.95 is suggested. Lastly, a data field for the special equipment suffix for entry on the FSS flight plan submission form is included.

Underneath the list of aircraft is the list of flight plans you have accumulated. This is an active list of single selection. You may select a plan by clicking on its name. This window cannot be closed.

To add a new flight plan to the list, click on the Add New Flight Plan button. A new set of blank flight plan windows will appear. Enter a flight plan name in the Name field then use the Save Data command in the File Menu. That flight plan aircraft will be added to the list. Of course you must enter data into the various fields in the windows for this plan to be useful.

To edit the data for an existing plan you should select the plan by clicking on its name so that it is highlighted. Then click the Edit Selected Flight Plan button. Alternately you can simply double click on the plan name. After making any changes to the data fields you must use the Save Data command in the File Menu to save these changes permanently.

To copy one flight plan and it's data to another name, first bring up the flight plan data window for editing the flight plan. Enter a new name in the Flight Plan Name field. Then use the Copy to Changed Plan Name command in the File Menu.

To rename a fight plan, first bring up the flight plan data window for editing the plan. Enter a new name in the Flight Plan Name field. Then use the Save Data command in the File Menu.

You can delete a fight plan by selecting its name in the list so that it is highlighted then click the Delete Selected Flight Plan button at the bottom of the list. You can also delete the plan directly from its data window by using the Delete command in the File Menu of the plan's data window.

The plan has four elements.

Each of these are in a separate window on the screen.

Selecting a plan from the plan list or adding a new plan brings up all four windows on the screen. These are controlled from the Navigation plan window. Closing this window closes all four windows. You may close the other three windows individually. Each window has a File Menu with a Save Function that you must use to store entries or changes into the database. Using any one of these saves the data in all four windows.

Print the plan using the Print command in the File Menu. The printed plan will be appropriately formatted with blank fields removed to best fit the printed page.

To make a navigation plan you will normally follow these steps:

The flight plan form consists of a number of text fields. The white fields are selectable for input data. The blue fields are for results calculated by the program. There are a number of buttons to aid with data entry and managing the form.

The top text field is for A CLASS="t1u" NAME for the flight plan. This can be any text of your choosing but a suggestion is to use something like Torrance to Palm Springs. The characters are automatically converted to upper case.

There are a number of ways to compile the navigation plan of up to 20 legs. The easiest is to use the supplied Sectional and Terminal Area Charts where you just click on the map and the fields are filled in automatically. But you can also specify checkpoints from the list of US checkpoints or even enter the flight plan all by hand if you want. The input fields are:

There are a number of buttons to assist with data entry. At far right are Insert and Delete buttons. Click the Insert button aligned with a checkpoint to insert another checkpoint before that checkpoint. Click the Delete button to delete that checkpoint.

Above the altitude column is a Suggest button. The program will do it's best to suggest a proper altitude for that leg. The factors considered are the odd/even east/west VFR cruising altitudes above 3000 ft. AGL, ability to climb to an altitude for the current aircraft in the distance for the leg, actual terrain elevation following that leg from a built-in US database, and required descent distances at 1000 fpm for reaching pattern altitude at the destination airport. This is a difficult determination to make as there may be conflicting requirements and climbing calabilities for the supplied leg distance. You are urged to review these carefuly and make your own altitude selections using these suggestions as a mere guide.

Above the Wind Direction, Wind Velocities, and Magnetic Variation Columns are 'Duplicate 1st' buttons. These copy the entry in the first row to all the other rows.

Above the Temperature Column is a Standard Temperature button. From the data in the altitude column, the standard temperature at that altitude according to the 1976 International Standard Atmosphere (ISA) is computed and entered in the field.

See the description of the 'Calculate' button for a description of the calculated fields.

The calculate button takes the navigation plan information from the white data fields and fills in the computed blue data fields.

This button looks up each of the identifiers in the Code input data column and updates the checkpoint name, frequency, course, and distance columns. This is normally done automatically if you use the chart or identifier list to compile the navigation plan. But, if you do manual data entry, you must use this button to do all that. If a code has an ambiguous reference, such as both a VOR and airport having the same code, you will prompted to make a selection.

Erases all the computed data in the blue data fields. The Clear Data menu item command clears all the data in the white input data fields.

Use this button to invert the flight plan to create a return trip plan. Altitudes should be evaluated and changed by hand. Note that while some legs may be descended easily, there may be insufficient distance to climb in that distance. You will be shown an error message when you use the Calculate button on the inverted plan if this is the case. Make sure also that you modify the Initial Fuel data field using the Fuel Remaining calculation from the uninverted plan.

Use this button to append an inverted plan onto the end of the existing plan. As with the Invert function, while some legs may be descended easily, there may be insufficient distance to climb in the reverse distance. There is a limit of 20 legs in a navigation plan so only plans of 10 legs or fewer may have an inverted plan appended.

Normally, it is not necessary to have separate legs that are a pure climb or a pure descent. Legs are usually a partial climb followed by cruise, and maybe even a descent stage all within one leg. FlightPlanner takes all this into account. If you wish to extract these stages into separate legs you may do so with this function. Additional legs will be inserted so that each leg is either a pure climb, cruise, or descent.

Pure descent legs are calculated assuming a 1000 fpm rate of descent. As such, the flight times and fuel consumption will be slightly different with a flight plan that has these pure descent legs due to different times spent at different altitudes.

This button removes the TOP OF CLIMB and START DESCENT checkpoints inserted with the Climb/Descent button.

This generates two plots.

This is a list of just under 24,000 airports, navaids, and VFR checkpoints in the United States. The characters to the left are the up to 5-letter code assigned to that idcentifier. The letter to the right of the code is an 'A' for an Airport, 'N' for a Navaid (VOR, NDB), 'F' for a VFR fix, or 'U' for a user defined location. The remainder of the line is a textual description of the identifier. The list is active, a single click selects an item, a double click allows editing of the data associated with that item.

You may use the identifier list to build a navigation plan. First select the identifier by single clicking on it then press the Use Identifier in First Open CheckPoint button. Normally the end of the navigation plan is the first open checkpoint and using this button will append that checkpoint to the end. You can insert a checkpoint by using an Insert button in the navigation plan window to create a blank entry where you want to insert the checkpoint. Then, this button will place that identifier in that position in the navigation plan.

Use this button to bring up a window wher you may enter data for a new identifier. You must enter an identifier code of up to six characters. Use the radio button to identify it as an A/P for airport, Fix, Nav for navaid, or Usr for a User-defined location. Other data you can specify are:

Use the Save Data command in the File menu to add the new identifier to the Identifier Database.

Use this button to edit the data for an existing identifier. The data stored for each identifier is:

Use the Save Data command in the File menu to save any changes you made to the Identifier Database.

To copy an identifier, Edit the source identifer, enter a new Identifer Code and/or Type with the radio buttons then use the Copy to Changed Identifier Name command in the File Menu.

To rename an identifier, Edit the source identifer, enter a new Identifer Code and/or Type with the radio buttons then use the Save Data command in the File Menu.

To delete an identifier, first select it with a single click in the list then use the Delete Selected Identifier button at the bottom of the Identifer List.

You can also delete the identifier from the Edit window. First edit the source identifer, then use the Delete command in the File Menu.

This is a list of the 105 Sectionals and Terminal Area Charts for the US. The number in the name is the version number as these are periodically updated. The list is active in that you select a chart with a single click or display it with a double click on the name. These charts are also active and are the recommended way of formulating a navigation plan.

Use this button to display the selected chart. You may also double click on the chart name in the list to display it. These charts are very large and consume large amounts of memory and up to four may be displayed on the screen at a time. This is so that navigation plans that traverse chart boundaries can be more easily defined or viewed.

This menu item enables or disables the consideration of IFR 'Fix' type identifiers when selecting checkpoints on the charts. There are a great many of these identifiers and this causes display of potentially unsuitable checkpoints for VFR navigation. They also slow down the program's responsiveness noticeably. Therefore the default identifier list supplied with FlightPlanner does not even contain the IFR fixes. An alternate database containing the IFR fixes may be optionally substituted. With that database in place, this menu item may be used to filter out those IFR fixes from consideration.

The charts are very large and are displayed full size at 100% initially. You may select a percentage from 10% to 100% to display the chart to get a better overview of the navigation plan.

If you press and hold the right mouse button on a chart, then drag the mouse, a cropping region rectangle will be drawn on the chart. The cropping rectangle can be restarted at any time with the mouse. Use this menu item to produce a image containing just the cropped region. You may also use menu items here to restore a cropped image back to full size or to just erase the cropping rectangle. The primary reason to crop an image is to produce a printed image containing just a selected region. Typically this will contain the are of the navigation plan showing the red navigation plan route drawn on the image.

The displayed charts are active. That is, they are the primary way to define a navigation plan. As you move the mouse over a chart, the latitude and longitude of the current position of the crosshair cursor is displayed in the title bar. This is corrected for the projection method used to display a spherical surface region on a flat plane.

To add a checkpoint, including the departure point, left click (and release) anywhere on the map, preferably over a desired checkpoint. A list of the five nearest identifiers in the identifier database will be displayed for you to confirm your selection. The displayed distance to that identifier from the clicked point in ascending order assists with that determination. To make the selected point a User Defined Checkpoint, click the Add User Identifier button for access to a window permitting you to add a checkpoint at that longitude and latitude to the identifier database. If this is the departure point, no line will be drawn but that identifier will be added to the navigation plan form. Otherwise, that identifier will be added to the first blank checkpoint field in the navigation plan and the trace of the flight plan will updated with a solid red line. This is normally appended to the end but you may insert a blank checkpoint using an Insert button on the form first. The courses and distances from the previous checkpoint is updated automatically.

A better way to insert a checkpoint is to press and hold the left mouse button anywhere near the solid red navigation trace line. Drag the mouse to see a temporary trace line. Stop dragging with the cursor over the desired point to use as an inserted checkpoint. Release the mouse button to again see a window of potential checkpoints to be inserted in the navigation plan. Upon confirmation the solid red trace line will be updated weith the inserted checkpoint. The navigation plan form is automatically updated to reflect all this activity.

To delete a checkpoint from the navigation plan, right click (and release) the mouse button over any existing checkpoint. Upon confirmation, that checkpoint will be removed from the plan.

If a flight plan traverses more than one chart, the red trace line will appear in the correct location coming from (or going to) the edge of the chart.

Use this window to enter and print the communications frequencies necessary for the flight. Use the Get Departure and Get Destination buttons to retrieve and display a window containing a list of known frequencies from the frequencies database for these airports.

This window will also show data for the runways at this airport including length and width, type and condition, and if there is a right hand traffic pattern.

Use this window to verify weight and balance for the selected aircraft. Enter weights in the white data fields in pounds and the calculated totals and momentum values will be filled in the blue data fields. Two plots will be generated showing the total weight, center of gravity, and momentum values relative to the permitted center of gravity and momentum envelopes for the aircraft.

Use this form to fill in and print a flight plan form with information necessary for filing a flight plan with a Flight Service Station. Many of these fields can be filled in automatically from computed data from the navigation plan. Press the Fill In Data From Navigation Plan button to transfer this information automatically to the form. The rest may be filled in manually. Print the form for convenience.