Originally Posted by
1967brutus
Depends also a bit on the altitude you live at, I guess.
A 26 cc 2-stroke gasser (I am assuming a zenoah here) is in normal trim and common used props like 18 x 8 not all that more powerful than the OS/ASP. Don't get me wrong, it absolutely IS, but not shockingly so. Not like "twice as strong" or anything like that...
I mean, I know you can get 3,5 horses from that Zenoah, but for that it needs to run 10~11K, and that is not an RPM you want to fly around with. Starts to sound obnoxious. 3 hp, or perhaps slightly under, is more realistic. I have seen 2,4 hp from my ASP twin, and in flight it exceeds that even.
I haven't seen that much from my 220. What prop and rpm? What prop constant in the calculator?