RE: H9 Katana 90 & 25cc gas conversion?
I have seen others on this site, I am working on a 23.6cc Echo to put in mine now.
I just started working on the engine now to see what kind of power I can get out of it.
I am shooting for around 10lbs AUW. Some people have told me it won't fly well.
We'll see, at 10lbs. and a wing area of 1100 inches I think it will.
Pete