 On February 5, 1958, a U.S. Air Force B-47 Stratojet from Homestead Air Force Base, Florida, jettisoned a nuclear weapon (specifically, a Mark 15 hydrogen bomb) off the coast of Tybee Island while conducting training exercises with a USAF F-86 Sabrejet.Both aircraft collided, with the pilot of the fighter ejecting and the crew of the bomber making an emergency landing at nearby Hunter Air Force Base.The lost weapon, known popularly as the "Tybee Bomb", remained a security concern for several years, although the Air Force claims the bomb lacks a nuclear capsule and does not pose a serious threat.