Abstract: A space vehicle may extract and store energy, and also include a propulsion system. The space vehicle includes one or more wings connected to a body of the apparatus. Each of the one or more wings includes a propellant system configured to eject mass away from the apparatus, the ejection of the mass causes the apparatus to move from a first position to a second position.

Abstract: An aircraft for generating torque. The aircraft includes a motor coupling a lifting rotor and a torque rotor, and is configured to spin the lifting rotor in a first direction to generate lift and spin the torque rotor in a second direction to generate drag-torque. The torque rotor and the lifting rotor are coupled or decoupled from one another during flight or on ground.

Abstract: A space vehicle may extract and store energy, and also include a propulsion system. The space vehicle includes one or more wings connected to a body of the apparatus. Each of the one or more wings includes a propellant system configured to eject mass away from the apparatus, the ejection of the mass causes the apparatus to move from a first position to a second position.

Abstract: A spin stabilized aircraft may include a plurality of wings that passively spin stabilize the aircraft, causing the apparatus to move in a direction opposite that of a wind source. The aircraft may also include two or more propulsive arms that actively stabilize the aircraft in absence of wind or a decrease in altitude.

Abstract: A spin stabilized aircraft may include a plurality of wings that passively spin stabilize the aircraft, causing the apparatus to move in a direction opposite that of a wind source. The aircraft may also include two or more propulsive arms that actively stabilize the aircraft in absence of wind or a decrease in altitude.

Abstract: Micro/nano mono-wing aircraft with the wing configured as a winged seed (Samara) is uniquely suited for autonomous or remotely controlled operation in confined environments for surrounding images acquisition. The aircraft is capable of effective autorotation and steady hovering. The wing is flexibly connected to a fuselage via a servo-mechanism which is controlled to change the wing's orientation to control the flight trajectory and characteristics. A propeller on the fuselage rotates about the axis oriented to oppose a torque created about the longitudinal axis of the fuselage and is controlled to contribute in the aircraft maneuvers. A controller, either ON-board or OFF-board, creates input command signals to control the operation of the aircraft based on a linear control model identified as a result of extensive experimentations with a number of models.

Abstract: Micro/nano mono-wing aircraft with the wing configured as a winged seed (Samara) is uniquely suited for autonomous or remotely controlled operation in confined environments for surrounding images acquisition. The aircraft is capable of effective autorotation and steady hovering. The wing is flexibly connected to a fuselage via a servo-mechanism which is controlled to change the wing's orientation to control the flight trajectory and characteristics. A propeller on the fuselage rotates about the axis oriented to oppose a torque created about the longitudinal axis of the fuselage and is controlled to contribute in the aircraft maneuvers. A controller, either ON-board or OFF-board, creates input command signals to control the operation of the aircraft based on a linear control model identified as a result of extensive experimentations with a number of models.