Mark 53 Thermonuclear Bomb

The Mk-53 "hydrogen" bom, first produced in 1962, was designed to be carried internally by B-47, B-52, B-58, and B-70 aircraft. It was equipped with five parachutes. With a yield in the megaton range, B53s had an air burst, contact burst, and "laydown" (delayed action detonation) capability. The Mk-6 re-entry vehicle installed on the Titan II ICBM contained a W53 warhead, basically the same as the Mk53 bomb.

---