A battery powered helicopter uses one or more torque arms as the power source directly driving the main rotor blades, causing them to rotate. The helicopter does not require a combustion engine, a clutch, a reducer, a tail driver, a tail boom, a tail rotor, or a fuel supply system. The output shaft of the high-energy motor is coaxial with the main rotor shaft. The centrifugal force of one or more motor(s) is negligible or minimized. The torque arm assembly includes a plurality of torque arms. Each of the torque arms of the plurality of torque arms includes a propeller and a driving system. The torque arm propellers are hinged so that they can move between a first closed position and a second open position to institute an autorotation safety system.
ELECTRIC TORQUE ARM HELICOPTER WITH AUTOROTATION SAFETY LANDING SYSTEM
2021-09-30
Patent
Electronic Resource
English
Electric torque arm helicopter with autorotation safety landing system
European Patent Office | 2021
|Optimal landing of a helicopter in autorotation
NTRS | 1988
|Optimal Landing of a Helicopter in Autorotation
NTIS | 1985
|Optimal landing of a helicopter in autorotation
NTRS | 1986
|