Pitch/Dia/Ears/RPM Factors
04-25-2004, 07:37 AM
#1
Guest
Posts: n/a
Pitch/Dia/Ears/RPM Factors
Please refresh or correct my memory on the general rule of thumb factors concerning changes in pitch, diameter and blades on RPM.
1" pitch = 200rpm
1/4" diameter = 100rpm
1 blade = 400rpm (was it 1 size or 1 inch)
Also, I believe I prop for rpm at max hp but cruise at max torque rpm.
Sorry if so trite but couldn't find much with search and didn't see an FAQ sticky
1" pitch = 200rpm
1/4" diameter = 100rpm
1 blade = 400rpm (was it 1 size or 1 inch)
Also, I believe I prop for rpm at max hp but cruise at max torque rpm.
Sorry if so trite but couldn't find much with search and didn't see an FAQ sticky
04-27-2004, 07:08 AM
#2
Registered
WaterPistol,
Generally we use 150-200 per inch of pitch change
1/4" diameter is 150-200 rpm
1 blade is one inch of pitch
There are MANY variables to take into account and this is a very general guideline.
Matt
Generally we use 150-200 per inch of pitch change
1/4" diameter is 150-200 rpm
1 blade is one inch of pitch
There are MANY variables to take into account and this is a very general guideline.
Matt
