Originally Posted by
Lupus-Zorro
Simple answer is! NO NO NO NO NEVER EVER. The starter has a clutch much weaker than your arms.
That's a simplistic answer that overlooks the rather large rotational inertial of the prop (the HS 2D30 weighs about 160#) - A healthy battery & starter will turn this to 200 rpm within one or two blades, and even if the starter clutch yields, all that rotating momentum could easily bend the #5 or #6 connecting rod when the fourth blade passes.
I'd much rather turn it slowly by hand - you can feel the abnormal compression well before anything breaks or bends!
