ORIGINAL: 2Sunny
Hey Dan,
Awesome choice for an E-plane if I do say so myself.
As to why RPM is important its the difference between work-in versus work-out. RPM is is part of the measurement of the actual work done by the motor.
Joe
We are actually looking for the power out of the motor. RPM and torque determine the power out. We have a requirement to do some work (fly a pattern) in a certain period of time. Theoretically, you could do the same amount of work with less power but it would take a longer period of time.
Power is more important in airplanes than it would be in a land vehicle, because they won't fly if they are going too slow. Hope this helps.
Now here is a test. It is two miles to grandma's house. One mile up the hill and one mile down the hill. My old car can only go 30 mph up the hill. How fast must I come down the hill to average 60 miles an hour?
Jim
Jim