Aircraft propulsion system

A propulsion apparatus for providing directional control of an aircraft, comprising:

• a frame connected between a body of the aircraft and a main rotor having a torque effect on the body;
• a first motor mounted to the frame and configured to spin in a first rotational direction;
• a second motor mounted to the frame and configured to spin in a second rotational direction opposite the first rotational direction to create a force opposite a force imparted to the body by the torque effect of powering the main rotor;
• a rotor shaft extending along a vertical axis of the frame;
• a gear assembly operatively coupled to the rotor shaft at a location below the second motor and engaging the second motor;
• and
• a containment ring coupled around the rotor shaft at a location between the first motor and the second motor and engaging the second motor, wherein the second motor and the first motor drive the main rotor in the first rotational direction, and wherein the aircraft is steered around a vertical axis by adjusting the power level or current of the first motor and the second motor.