Court of Appeals for the Third Circuit April 10, 1981, 80-1888 (Bill Hames Shows, Inc. v. J. J. Taylor Syndicate 173, and Third Party Plaintiffs- Buster L. Brown, Third Party)

GEE, Circuit Judge:

About four years ago an aircraft belonging to appellee Bill Hames Shows, Inc. crashed while on a test flight. Being tested was a device designed to permit hand control of the aircraft’s rudder, customarily manipulated by foot pressure on a rudder bar or pedal.