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2 Answers

Accelerate Stop Distance for Piston engine.

Asked by: 5829 views Aerodynamics, Commercial Pilot, Flight Instructor, General Aviation, Instrument Rating, Private Pilot, Student Pilot

Hello Everyone,

 

I know it is not mandated or bring it an attention about calculating Accelerate Stop Distance for piston engine aircraft(I fly Piper Arrow 28) but on weight and balance sheet, school require us to calculate it.

Can anyone explain me how to calculate and the distances involved in it?

 

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2 Answers



  1. John D Collins on Mar 15, 2016

    Steve,

    There is no accelerate stop calculation defined for the Piper Arrow, however, one can do an estimate by adding the takeoff ground roll to the landing ground roll. Both values can be determined from the performance charts. I would add a safety factor such as 500 feet.

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  2. Mark Kolber on Mar 17, 2016

    The only addition I would make to John’s spot-on answer is about the “safety factor.” For those unfamiliar with the subject of single-engine accelerate-stop (I’d guess most), the concept is about calculating a takeoff abort point that leaves you enough runway (some say good overrun area too) to safely stop.

    The safety factor should consider two things – (1) the usual padding we do on takeoff and landing calculations due to variations in equipment and technique and (2) the “oh crap” factor that delays our realization that something is really wrong and out action hitting the brakes .

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