What are the 'Do's and 'Don't's of 'Breaking Ground' + FAR (+ IR)? I've been making helicopters both with and without the BG-propellors, and they went "up-ish". From what I understand, it's because BG-prop + BG-engines operate completely beyond the scope of FAR. But servo's+FAR-wings (stock parts with FAR active) seem like a working option but servo's + FAR-control surfaces do not. What would be the thing that makes a helicopter work vs a kraken-copter? I've never made a variable wing craft,