I've never had a preference either way. I've seen airboaters push the three blades as being more efficient. Efficient at what? I've never seen any real explanation. Of course design has a big part in it but I'm thinking apples to apples here. We're not talking about pitch or blade design here, just two or three blades.I'm figuring the airplane engineers may be a bit smarter than a bunch of airboat hillbillies on this subject. From what I'm seeing all or most of the lower powered airplanes run a two blade prop, you don't see the three blade props until larger planes and power plants. For this reason I've always leaned in the two blade direction if any.

Thoughts?