RE: Prop for Evolution Trainer motor
Ordinarily I'd advise the heavier APC props on trainers over say the wood props, or initially over lighter MA props.
( Wood props can be used later once the pilot has experience & the MA's once the engine has been broken in well. )
- They help keep the engine idling
- There is less chance of broken wood shearing off into the novice's face, etc.
However the Evolution has a flywheel weight in it, so if that is left on, the MA prop does just fine.
Optimum performance seems to be achieved on that plane with the 11x6 2 blade configuration.
That's what I have on the Alpha 40 that I keep around to train people on, and occasionally haul out for relaxed flying or night flying.