I am currently flying one of these ,great flying plane, saito 150, semi scale exhaust ,plane built well flys great .One warning you will not be happy with century jet retracts I have a set of centurion's inserts bend every landing no matter how good of landing have. modified main part of retract to remove slop had new inserts machined to except robostruts My friend is builing one after flying mine removed his century retracts made mods to main part installed robostruts . just my opinion!