Originally Posted by Unclebuck21228
I am in the process of picking a motor for my newest scratch built, (RC Clipper, plans from outerzone) and I was wondering if there is any benefit of motors with shaft mounted prop adapters or can/bell mounted prop adapters. I'm looking at the motors from headuphobby (great business BTW) in the 450 size. I like the shaft mounted adapters for no particular reason. I'm will be using the x mount/motor in front of the firewall mounting.
Depending on the prop, you need to use a prop adapter, some props have a 3mm hole in them and other props have a larger hole in them where a prop adapter is needed, like the apc props, buy a prop reamer to fit the prop to the adapter, the apc props have prop inserts they do need to be reamed to fit properly, I Use a little ca to hold the prop insert with so it does not spin when reaming out the hole to fit, you will need to balance the props too, on some of the smaller bell motors, with the 3mm motor shaft, you can replace the bell mounting screws with some metric screws that are a little longer, and cut the motor shaft so the end on the motor shaft sticks out about 1/8" beyond the prop, now you can use some O Rings to hold the prop on with, this is a free prop saver
Hope that helps, Chellie