PPRuNe Forums - View Single Post - Pounds thrust to horsepower
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Old 18th Oct 2005, 18:36
  #28 (permalink)  
HundredPercentPlease
 
Join Date: Jun 2003
Location: UK
Posts: 3,067
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Lots of confusion here!

Stationary on the runway, brakes on and max thrust, is zero power because no work is being done on the aircraft. You could get the same effect by attaching a rope to the nose of the aircraft going out horizontally, then to a pulley, and to a 20 tonne weight suspended just above the ground. Aircraft still feels the same thrust - no power.

I am currently converting from 737 to A320. Instead of saying "thrust set", I now have to say "power set". Of course, I asked my instructor how much power we had when stationary, and even suggested that when the N1s were stable I should say "power increasing with speed". I blame the French.

To go right back to the original question, I think a good answer would be the bhp of an engine that would drive a good ducted prop to produce the thrust in question.
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