HI GUYS, I have enjoyed my cm f-16 , with ys 45, on 30% heli fuel , makes nice smoke trail. it is a good trainer, for flying and building, LOTS of work involved. video that comes with kit is great. but mine weighs about 10 lbs. maybe that was builders fault. but makes it a little lacking vert. only flown off asphault. 70 flights so far. funny story,, nose gear colapsed on take off,, went off end of runway still full throttle,,blew 30lbs of plowed dirt 15ft in the air out tail pipe behind it as it scooped it in the intake.looked like a drag boat rooster tail. went out of sight over edge of small drop off past end of runway about 80ft. turned off radio,laughing,went to pick up pieces. as i walked to the plane i noticed it was still running and no damage. shut it off. carried it back to pits and dumped another 5lbs of dirt out of intake and tailpipe. fixed gear, flew rest of day. its a fun plane, had bad vert fin flutter first flights,beafed it up, went away. i have turbine planes now so 16 rest in my mueseum. but may sell it if someone is interested.