Emma Cox Oct 20, 2009:

Torque factor Hi Judith
Out of curiosity I logged back in to see whose response you had chosen. I was a bit dismayed that you have rejected Spiridon's response, as I think he is correct. I just think it's incorrect that you are looking at the design of a new airport. Do you want to send me a bit more of the text via proz and I can perhaps help you out. I can spare a bit of time tomorrow to take a look. Hope that helps.

Spiridon Oct 20, 2009:

Torque Factor Agree with Emma Cox Torque factor is inherent to Single engine aircraft propeller driven.

Emma Cox Oct 19, 2009:

I agree... It doesn't make sense that this is for a runway. Torque effect is the effect of the engine torque on the movement of the aircraft - ie. a propellor rotating clockwise gives the plane a tendancy to rotate anti clockwise, which has to be countered using rudders... The faster the engine, the greater the torque effect. If a plane is going around, obviously you need maximum power, and therefore torque effect will be at a maximum too. However, a runway length has absolutely nothing to do with this - and jet engines do not work on the same principals either for that matter... I hope this makes sense... I am doing my commercial pilot's license so it's always fun to explain this sort of thing... Any questions, please feel free to mail me.

mediamatrix (X) Sep 26, 2009:

Please confirm... Does the source text really say "for a new airport"? It would make (a little) more sense if it said "for a new aeroplane". 'torque factor' usually refers to engine specifications.