vasek,

There is an RCV 120SP up for bid on eBay now. As I write this there are four days remaining and the bid is up to $202. According to the information the engine's owner provided, the RCV 120 can swing a 15.5 X 12 four-blade prop. He used this engine in an ARF Hellcat with a 72" wingspan and said it flew his plane well. And, no, it's not my engine.

I'll throw in my dos centavos here with regard to the number of prop blades. Once the engine is running, no one will know how many blades are turning. In our models, being considerably smaller than their full-size counterparts, a two-blade prop is much more efficient than a prop of three or four blades. Let's face it, a full-scale designer, racer or fighter pilot would kill to have the power to weight ratio we enjoy with our models. While P-40 Driver may share the sensitivity of my supervisor at work, I have to agree that a static prop would be your best bet while your Fury is parked in the pits. But, hey. That's just me.

Al