Hi Guys

I am wondering if anyone knows of or have tested gms47 engines and if so how fast could if spin a 8 10 prop. I have orderd a dd clipped wing., and I would like a economical engine to power it. I know of jett rossi and such but I can purchase a gms 47 for 79.00 canadain.

On a side not to reach one hundred and fifty with this airframe I assume I would have to spin a 8 10 proop around 16000 or so once I get used to the speed and am comfortable with it I would not mind purchasing a proven speed set up. but until then if anyone has any combinations that they use to hit about 150 + mph please share with us

thanx