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FOMS Menu 252

This program will allow you to view cruise performance data. The values displayed are Mach Number and the corresponding fuel burn expressed in Pounds per Nautical Mile for each increment of weight at each flight level within the aircraft’s performance envelope.

Note: For prop-driven aircraft, the speed values are expressed as True Air Speed in knots, and tables are provided for each 5 increment of ISA deviation.

The available modes are:

  • Graph

  • Screen

  • Hardcopy

  • Quit

Graph Mode

Graph mode allows you to enter criteria and have the information displayed in a graph. The graph opens in a separate browser window.

Screen Mode

This mode allows you to view the entire data file, for the selected cruise profile of a specified aircraft, or a selected portion of it. The range selection screen will allow you to specify the cruise profile and number of engines, the Mach Range, the Temperature Deviation and the Weight ranges you want to review.

  • If you want to view Fixed Mach cruise data; enter STD as the cruise profile. This will allow access to the Mach range entry fields.

Note: The ISA Deviation range fields can only be accessed if the aircraft type you have selected is either piston-engine or turbo-prop powered. For pure jet aircraft, only values for Standard ISA conditions are stored. Adjustments for temperature are handled mathematically by the Flight Plan program.

  • If the cruise profile you select is anything other than Fixed Mach, (e.g., LRC or HSC), then you need to only specify the weight range you want to view. 

When the report is displayed on screen you may press <Enter> to go to the next page. You may escape from the report at any time by entering <Q>.

Hardcopy Mode

Hardcopy mode functions in the same manner as Screen mode, with the exception that the report is sent to the printer, hence you do not have the ability to terminate the report in midstream.

Quit Mode

Entering <Q> from the Command Line will return the Next PROGRAM-NUMBER prompt so that you have the option of going directly to your next program if you know the menu number, or of returning to the previous menu if you simply press <Enter>.

Note: The following descriptions represent the typical access and privileges afforded to users designated as Dispatch Managers/Supervisors. Users with dispatcher privileges will have limited access to a subset of the screens presented.

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