Propellor Pitch – why is this so important to understand ?
So what is the difference between an 11×7 prop and a 10×8. From above you can see that the 10×8 should move the plane further faster since it’s a higher pitch. But it also increases amp draw. In a case where your amps goes too high you will actually degrade performance. Reducing the diameter of the prop enables you to reduce amps and reduce thrust. Also a smaller diameter prop will enable the motor to run higher RPM. This enables movement of power from thrust to speed. Increasing the pitch from 7 to 8 will consume some of that power and increase air speed. So if you plane doesn’t have the climb you want and is too fast, increase the diameter of the propellor and decrease the pitch. It is very worthwhile analyzing how your plane flys or get familiar with the charts we post. I change props alot to get a feel for what runs well and what I like. In some cases I want to run fast, so I put a 9×7 or 10×8 prop on the plane. But in other times I want high thrust and good speed. So I break out t
