US air force bomber aircraft The Rockwell (now part of Boeing) B-1 Lancer[N 1] is a four-engine supersonic variable-sweep wing, jet-powered strategic bomber .<br />US air force bomber aircraft The Rockwell (now part of Boeing) B-1 Lancer[N 1] is a four-engine supersonic variable-sweep wing, jet-powered strategic bomber .<br />SUPER FAST US Air Force B1 Lancer Bomber Aircraft US air force bomber aircraft The Rockwell (now part of Boeing) B-1 Lancer[N 1] is a four-engine .<br />US air force bomber aircraft The Rockwell (now part of Boeing) B-1 Lancer[N 1] is a four-engine supersonic variable-sweep wing, jet-powered strategic bomber .
