Equipment of Strategic Air Command
Strategic Air Command equipment includes weapon systems and ordnance (e.g., strategic weapons such as ICBMs), ground radars and computers (e.g., at SSN 1979-82), and other Cold War devices of the USAF major command. == Special Weapons Emergency Separation System == This system (SWESS), also known informally as the dead man's switch, was a nuclear bomb release system that the United States Air Force Strategic Air Command built into bombers such as the B-52 Stratofortress.
Source: Wikipedia — Equipment of Strategic Air Command (CC BY-SA 4.0)