The XGAM-71 Buck Duck was a decoy missile that was developed by Convair in the late 1950s. It was intended to have the same radar signature as the Strategic Air Command's B-36 bomber, thereby allowing it to disrupt the enemy's air defenses and dilute their effort to shoot down an incoming bomber fleet. Convair built the first prototype using their own funds, but received an official development contract from the United States Air Force on 16 August 1954. The project designation was MX-2224. When the Air Force decided to put the project into production, it received the designation GAM-71.