| my brother in law is an avionics engineer working on full size copters, he has had to crawl into the tail booms on full size copters to degrease and inspect running gear to the rear tail rotor after this type of incident has occured in full size aircraft, heavy landings can mis align tail rotor drive shafts and bearings.... he says the biggest headache ( literally) is the solvent degreaser they use in the confined space !- |