RE: DIAMOND DUST RC LIVES!!!!!
the Jett engine that my friend wishes to sell looks like a q40, lack muffler and says "rr 2".
Can I run it with a larger prop and be okay?
I had at least 20 flights w/ the ys91sr whiplash. I only had the difficult launches when I went with a smaller high pitch prop. I've heard the q40 were designed for just top end with the one size prop. I would like to put a 10 by ? ?
is it difficult to tune...