for fixed pitch prop, say advance per revolution is 5 feet for rpm of 1500 rpm.
what is the advance per revolution for 2000 rpm? will itbe 5 feet or will it increase?
2007-12-19 07:25:10 · 3 answers · asked by canard63 1 in Cars & Transportation ➔ Aircraft
The answer is no it(the 'advance') does not change with RPM. It is called 'pitch' and notice that the 'angle' varies with distance from the center for a given pitch. That change in angle accounts for the different radial 'speeds' as you move toward the tip.
Pitch is usually given in inches per revolution, say for a Cessna 172, it is something like 58 inches. Note that the efficiency is not 100% so you don't really get 58 inches of travel for every revolution of the prop.
2007-12-19 08:17:23 · answer #1 · answered by pitts_pilot 3 · 0⤊ 0⤋
No, the advance will the remain the same. The RATE of the advance will be faster at higher RPMs.
2007-12-22 05:27:14 · answer #2 · answered by Albannach 6 · 0⤊ 0⤋
you could have full throttle and still not go very fast.. it depends on your attitude.. but i assume you're talking about cruise flight.. in that case, this question is a little to advanced for me to answer.. you would increase speed.. but i don't think it would be a linear function.. it would be more of a curve if you looked on a graph of RPM vs speed.. theres just to many variables to think about to really explain it
2007-12-19 07:45:05 · answer #3 · answered by Kevin H 3 · 0⤊ 1⤋