Today’s invention is a new form of helicopter rotor.
A horizontal carbon fibre torus (yellow) contains a number of carts which run on its interior surface. Each cart is attached to a rotor blade (white).
The blades are joined to a central ring which is a commutator like, circular electrical connection (blue). This passes electricity from the motor down wires to power a motor in each cart.
The carts drive the rotor blades, but with zero reaction torque on the body of the aircraft.
This does away with the need for any kind of torque-compensating rear rotor.
The aircraft might carry a battery or be powered by a jet turbine/generator combination.
A helicopter might have several such rotors, offering extra safety via redundancy.
