US Patent 8342440 Miniature robotic vehicle with ground and flight capability

Miniature robotic vehicles suitable for a variety of tasks including covert surveillance, reconnaissance, and recreation are provided. Embodiments of the invention may include vehicles having a hybrid transportation system that incorporates a rotary-wing flight mode in conjunction with a wheeled ground transport mode. As a result, exemplary vehicles provide efficient ground-mode travel, with the added ability to fly over large obstacles and rough terrain.