Takeoff Performance Estimator
AirSmith, LLC

Quickly and easily estimate the takeoff performance for your next flight.

Click on the slide show for full screen images. After viewing, scroll down for more information.

WHO THIS APP IS FOR:  Generally, this is for the club pilot of single-engined, high-wing Cessna aircraft, who is able to rent from a fleet of airplanes.

WHAT IT DOES:  The Takeoff Performance Estimator will provide the takeoff distance required without complicated math or extrapolations.

HOW IT WORKS: The user creates aircraft(s) in a library with takeoff performance information, under standard atmospheric conditions.  When ready to fly, the user selects an aircraft from the library and enters the prevailing takeoff conditions, such as wind, takeoff weight, and obstacle height. 

The application will apply algorithms based on aerodynamic formulas to estimate the actual performance under the prevailing conditions.

SCREENSHOTS:  Scroll down to see: the Home Screen, the Results Screens, the Prevailing Condition Screens, and the Aircraft Library Screens.  These screen shots assume a C-172P, at a pressure altitude of 2500 feet, and a temperature of 25º centigrade, a takeoff weight of 2400 pounds, a wind speed of 17 knots from 160º magnetic, and using runway 13 that has a obstacle of 18 feet and no gradient.

The Home Screen

The Takeoff Summary:  The aircraft needs 1,214 feet of dry concrete runway to become airborne.  With a 50% accelerate/stop, the runway needs to be 1,821 feet long.  For the selected runway, there is a 9 knot right quartering crosswind and a 15 knot headwind component.


The Takeoff Data:  The pressure altitude and temperature create a density altitude of 3,100 feet, and the takeoff weight is 100% of the gross weight of this aircraft.

Enter the wind speed and runway selection.

Enter obstacle height and gradient (if any) for the selected runway.

The Aircraft Library: Aircraft are stored in the Aircraft Library and recalled prior to entering the prevailing conditions.  The aircraft is selected on the Aircraft Selection Screen and a summary of the standard performance of the selected aircraft is presented for verification.

The aircraft standard-conditions performance information from the Pilot Operating Handbook for each aircraft is stored in the Aircraft Library.  Note there are 15 entries for each aircraft, each easily available in the Pilot Operating Handbook.  See the YouTube demonstration for details.

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