Engines, rotary actuators, linear actuators, power transmissions for moving, steering, slowing down or immobilizing an aircraft for taxiing or during the phase prior to take-off or subsequent to landing; engines, rotary actuators, linear actuators, power transmissions used for turning one or more wheels of an aircraft in order to move, steer, slow down or immobilize this aircraft for taxiing or during the phase prior to take-off or subsequent to landing; reducers gearbox, for moving, steering...