The Rockwell B is a type of military aircraft known as the B-1 Lancer. It is a supersonic strategic bomber developed by Rockwell International in the 1970s. The B-1 is designed for long-range missions and can carry a variety of weapons, including nuclear and conventional bombs. Its unique design features variable-sweep wings, allowing it to adapt to different flight conditions. The B-1 Lancer entered service with the United States Air Force in 1986 and has been used in various conflicts since then. It is known for its speed, range, and ability to evade radar detection, making it a crucial asset in modern warfare.