crash ... my TT61 quit on take off but if it had been a TT46 I would have been able to land it. The TT61 is about 10 oz heavier than the TT46 or most 46 2C engines. I can imagine the grunt. Yeah ... the bigger prop! I did not bother to use flapperons. I tried her with an APC 12.25x3.75 ... oh man the landing was almost like harrier landings!!! With a 5 mph head wind its amazing! Now I am so tempted to go buy another, sigh ... maybe I can get my pal to sell her back to me as he has not flown it at all.