Question: ACES II is an ejection seat system manufactured by the United Technologies Aerospace Systems (UTAS) division of the United Technologies Corporation (UTC), it is used in which supersonic variable-sweep wing, heavy bomber used by the United States Air Force (USAF)?
Sentence (from "Rockwell B-1 Lancer"): It is one of three strategic bombers in the USAF fleet , the other two being the B-2 Spirit "Stealth Bomber", and the B-52 Stratofortress.
Relevant evidence: No