Vickers-Armstrongs Valiant

The Vickers-Armstrongs Valiant was a British four-jet high-altitude bomber, once part of the Royal Air Force's V bomber nuclear force in the 1950s and 1960s. The Valiant was the first of the V bombers to become operational, and was followed by the Handley Page Victor and the Avro Vulcan; it was noticeably less advanced than its counterparts. The Valiant has the distinction of being the only V bomber to drop live nuclear weapons.