In article , ChuckSlusarczyk
writes:


Does a prop turning at 2300 rpm on a 150hp motor produce more thrust than a
prop spinning 2300 rpm on a 100 hp motor ?

If it's the same prop and it turns 2300 on a 150 hp engine the 100hp engine
won't have the power to turn it 2300. If it turns 2300 on the 100 hp engine
then
the 150 hp engine will over rev it and run away the prop. At 2300 rpm the
prop
will produce the same thrust regardless of engine but the 150 hp engine would
really like a bigger prop to use the remaining 50 hp.

see ya Chuck (ain't no free ride in airplanes) S



Ah Hell Chuck, you missed the point of the question here. The thrust produced
will remain the same in both instances regardless of the engine horsepower. If
indeed the 100hp engine is turning the prop at 2300 rpm and requires the full
100 hp to do so, the 150 hp engine is not producing full power to turn the
prop. A 1000 hp engine turning the same prop at the same rpm will still
produce the exact same thrust.


Bob Reed
www.kisbuild.r-a-reed-assoc.com (KIS Builders Site)
KIS Cruiser in progress...Slow but steady progress....

"Ladies and Gentlemen, take my advice,
pull down your pants and Slide on the Ice!"
(M.A.S.H. Sidney Freedman)