I built and have flown the 71" with an RCV 120 swinging a 20 X12 prop. Take offs are tail high, very scale looking, and awsome, fly's great, lands like a Gee Bee. I did change the landing gear to Robart active struts, with a more solid mount than the kit used. This helped with the wheel pant issue. I got more of the tire out the bottom. I would say that it is a good value, even with the changes, for what it can be had for.