Abstract: A catapult for launching an aircraft is disclosed including a rail assembly having first and second ends. A support structure is provided for supporting the rail assembly above the ground at various upward angles. A container having an open end is releasably mounted on the first end of the rail assembly, the container for mounting the aircraft therein with a portion of the front end of the aircraft extending out of the open end. A device is provided for extracting the aircraft from the container and moving it from the first end to the second end of the rail assembly and release it when reaching the second end.

Abstract: A catapult for launching an aircraft is disclosed including a rail assembly having first and second ends. A support structure is provided for supporting the rail assembly above the ground at various upward angles. A container having an open end is releasably mounted on the first end of the rail assembly, the container for mounting the aircraft therein with a portion of the front end of the aircraft extending out of the open end. A device is provided for extracting the aircraft from the container and moving it from the first end to the second end of the rail assembly and release it when reaching the second end.

Abstract: A parachute system for a miniature aircraft having a storable parachute mounted on an upper surface of the aircraft. The system includes a canopy having a stored condition and an expanded condition. A plurality of suspension lines have first ends connected to the periphery of the canopy and second ends connected to an elastic member. First and second risers are connected by their first ends to the upper surface of the aircraft between the front end and center of gravity on either side of the longitudinal axis and by their second ends to the elastic member. A restraint system releasably restrains the parachute in the stored condition on the top surface of the aircraft; and a release system coupled to the restraint system releases the parachute upon command such that aerodynamic forces will cause the parachute to open.

Abstract: A vertical takeoff and landing aircraft is disclosed that includes a support structure having a motor mounted vertically thereto, with the motor having a propeller for rotation in a horizontal plane. A power supply for the motor is mounted to the support structure below the motor and electrical coupled thereto. A plurality of fins are attached by their first end to the power and extending radially outward therefrom. Vertical posts have there first ends attached to the second end of the fins and extend upward to the plane of rotation of the propeller. A ring is mounted horizontally to the second ends of the plurality of vertical posts surrounding the propeller. The torque produced by the drag of fins as the aircraft rotates in the opposite direction reacting the torque of the propeller equal to the torque of the propeller necessary to achieve hover. The rotational inertia of aircraft is made equal to the rotational inertia of the propeller.