OS91FX+TUNNED PIPE
 

I Have one on a LEO F3A 110 , with an O.S.+ Tunned pipe + 10% nitro + 14x6 APC , rpms are at 10580 , y fly at 2300 FT.

what prop do you thing that works well? how about a 15x10APC , maybe 14x10?

Thanks for reply.

Sergio.

RE: OS91FX+TUNNED PIPE
 

If you go to a propeller with larger diameter or larger pitch, you will get lower RPM from the engine, and lower performance. If the engine's running well now, then just keep running it as it is. We normally prop the engine so that it will turn over 11,000 RPM. An APC 13 x 8 propeller is usually used, but you will get more noise.