The Rockwell B-1 Lancer is a supersonic variable-sweep wing, heavy aircraft used by the United States Air Force (USAF). It is commonly called the “Bone” (from “B-One”). The USAF had 66 B-1Bs in service as of September 2012. The B-1B is expected to continue to serve into the 2030s, with the Northrop Grumman B-21 Raider …
