Ring airfoil launching system

摘要

An airfoil launching system having a rod (1) with a structure (3) attached to a first end (2) of the rod. A pusher (13) holds a ring airfoil (47) and has a sufficient coefficient of friction that the ring airfoil will generally rotate with the pusher and is rotatably and slidably mounted on the rod. Propulsive force is provided by resilient bands (8) connected to the structure outward from the rod and to the pusher outward from the central aperture (15) of the pusher. A grip (46) attached to the pusher is utilized to draw the pusher toward the second end (18) of the rod, thereby stretching and energizing the resilient bands, and also to rotate the pusher and, consequently, the airfoil. <IMAGE>