Bubba, i just got back from the flying field and well we had some visitors i have never seen before and they had to Huge Planes One was a Yak ( Red Bull scheme ) and another bloke had a big giles 2020 and it with heaps bigger than the cap and they both had gas motors, and they absolutly sound Great i now sorta regret not buying a da 50 for my cap now, but i think im going to have to build another one with a da 50 in it. i think gas is definatly the way to go. im just curious Bubba if u could post some pics with ur da 50 in it....