ORIGINAL: -pkh-
I typically don't balance props 12" and smaller, but then I use APC and MAS props that are usually balanced fairly well. For props larger than 12", I am more likely to take the time to balance them.
so... it is not necessary to balance props smaller than that? I have an OS .40 LA and I was told bye the club members that it was "mandatory" to balance the prop; it uses a 10 X 6... but I actually found a website that said the same thing, that it was not necessary with small props... do you think an unbalanced prop can damage this engine?