KNIFE EDGE …is flying with one wingtip straight down (and the other, obviously – straight up) with control while maintaining altitude & desired direction / heading. During this menever, you are basically flying on/ using the fusalage & the rudder as your wing. If your plane isn't built well (straight & true) then knife edge is a real pain to perform - but, with a well built plane - it'll fly knife edge like its on rails! Nice!
