 In 1964 the United States Army called for proposals for a rocket that could be launched by Army units towards the suspected location of enemy units, with a camera carried on board the rocket taking pictures of the target area, before a second retrorocket motor, located in the nose of the rocket, fired to return it to its point of launch for analysis of its reconnaissance pictures.Proposals were received from Lockheed-California, Goodyear Aerospace, the Chrysler Corporation Missile Division, and Beech Aircraft; the Lockheed proposal, named "Ping-Pong", was funded for development.Ping-Pong was conventional in appearance, launched from a tube in diameter.