I would guess that 22" will be a little much. My 35 (if I get the thing started) will turn an 18-8 just right. The 41 has more power obviously, but not that much more I wouldn't expect. 20-6 might be ok. Depends on your needs.....maybe you don't need to squeeze out all the power if you want scale flight and diameter. In that case a 22-6 might work for you.

I'm guessing that questions on this forum will be very slow to get responses from US engines as is shown by the lack of tech response to the recent questions.[]