Boeing eventually delivered 102 B-52H models to the Air Force by 1962. The H model is the only version of the B-52 still flying in the inventory. The USAF plans on using B-52’s into 2040. In all likelihood the B-1B Lancer will be retired before the B-52.
Capability has many faces at Boeing
FLYING MISSILE LAUNCHER. New Boeing B-52H missile bomber can take off faster, fly farther and strike harder than any previous B-52. It’s shown here carrying models of four hypersonic Skybolt air-launched ballistic missiles, a 1000-mile range weapon now under development. The Strategic Air Command B-52, most versatile long-range weapon system in the U.S. Air Force arsenal, can also carry supersonic Hound Dog missiles for inflight launching toward distant targets, in addition to regular bomb-bay load of gravity bombs.