Whats a good speed prop for this plane???
 

I have a cosmic wind with a th .75, I had problems with the motor now i have it runing great. I have a 13x7 MAS on it to keep the revs down till i felt i knew how to handle it. I now now that it handles great. I made some WOT passes with it today an i figure it was somewhere in the 90 to 100 mph range. I now it can do more. what would be a good speed prop be for a almost 8 pound, clean lined airplane?

RE: Whats a good speed prop for this plane???
 

Hate to say it but you're not going to get much more from it, going to an APC 13X7 or 12X7 might get you a couple mph, but you're not going to get much more...

RE: Whats a good speed prop for this plane???
 

That sucks. I now a guy with one that is alot faster than mine. maybe geting a biger engine would do it

RE: Whats a good speed prop for this plane???
 

In the Bobcat thread a 11x8 is one of the props used on that engine with good results. I would try that before changing to a larger engine.

RE: Whats a good speed prop for this plane???
 

Thanks mike i will try that. Think it would be ok on a 8 pound plane

RE: Whats a good speed prop for this plane???
 

The Bobcat is over 5 lbs. plus it would only take 13,500 rpm to have 8 lbs. of thrust with an eleven inch prop. I do not own a TH 75 but I understand they are strong engines. I think it may be a good match.

RE: Whats a good speed prop for this plane???
 

Ok. I will get one comeing in the mail

RE: Whats a good speed prop for this plane???
 

What engine and prop is your friend running?