an ejection apparatus for spinning and propelling objects for ejection from a spacecraft at a desired velocity and rotational speed . the apparatus includes a launch cradle on which the space object to be ejected rests . the cradle is rotatably supported by a central hub secured to upper end of pneumatic cylinder piston shaft . release mechanisms consisting of a retractable pin and locking lug is utilized to hold the cradle and object to be ejected . the release mechanism has a fixed barrier member which holds the retractable pin in engagement with the locking lug until release by upward movement of the launch cradle beyond the barrier height .