Thank you so much for that clarification, roltech. I noticed you also made the same recommendations I did. OK, for that engine on a "trainer", I'd go with an 11-4 or 12-4 2 blade.

Not that I believe for a moment that it's a true "trainer". I don't believe you can make a good, real trainer out of a P-51, no matter how many gimmicks you put on it.

Dr.1