I use the Evolution 12 X 6 on my Alpha 60/Evolution .61. Its been working great so far and I'm able to prop hang the plane, and it'll get an easy couple hundred feet of vertical after a short take-off run (hanging the plane on the prop, not letting any speed build up). I did have to open the spinner up for the shanks to fit - they appear a bit larger like an APC.

On one flight my nose gear bracket collapsed on a take-off run letting the nose drop at full throttle. The blades went about 1-1/2 inches into the wet ground with no effect. I've since put 3 flights on it with no problems.

If I have any complaint about this prop on the Alpha 60 it the fact I now have to fly it at 1/4 throttle with students on it otherwise it picks up a lot of speed real quick. For a trainer it's almost too fast at full throttle.

Hogflyer