i bought the yak 55 online from hobby lobby.It came in good shape and was easy to build.I used mostly electronic parts from I ordered from hobby king , a company out of hong kong.I installed a fc 28-22 brushless outrunnerat 1200 rpm/v with a 3 mm shaft and a 10x4.7 inch prop.this combo produces about 745 grams of trust.Allso used hobbykings hxt 500 5gram 10 sec micro servos.I used a bigger speed controler than was recomended but only weighed17 grams.This was the thunderbird 18 amp brushless speed controler, by castle creations.It comes with the brake set off as default, witch is great for 3-d flying .Allso using hobby kings 1000 mah 3 cell zippy lipo.all my planes use spectrum recievers and transmiter.This plane flys great,but reinforce the elevator with carbon fiber.Its tricky to land without breaking because it has no wheels.You have to harrier land.Very fast.knife edges,waterfalls,flat spins,harriers,hovers,its does it all without much flex.heres vidio link . I just built another one ,i liked the first one so much. http://www.youtube.com/watch?v=KBG8tLYIiu0