I myself will never ever use another Dyna prop. Even though it is small for what these big engines run. I had it on a Magnum .91 four stroke 14 by 6 and it was turning 9800 on the ground when one blade let loose and with much luck it did not hit either myself nor my friend that was helping. But it did tear the fire wall off of the plane and hit the ground so fast we could not even see it. Sceeeeeeeeeered the heck out of us.


But I guess as others say your luck may very.