Flugerprobung
Flight testing of the XAAM-A-1 prototype missiles began in October 1947, launched from DB-26 Invader bomber and DF-82 Twin Mustang aircraft, the latter of which could carry up to four missiles. The first air-to-air missile to reach the flight-test stage outside of World War II Nazi Germany, the Firebird proved to be reasonably successful in testing, with production being projected for the early 1950s; however its command-guidance system limited it to clear-weather, daytime use only.