MC-1 bomb
The MC-1 bomb was the first U.S. non-clustered air-dropped chemical munition. The 750-pound (340 kg) MC-1 was first produced in 1959 and carried the nerve agent sarin.
History
The MC-1 chemical bomb was first brought into regular mass-production in 1959. A modified general purpose demolition bomb, the MC-1 was the first non-clustered chemical munition in the U.S. arsenal. The MC-1 was designed to be delivered via U.S. Air Force aircraft. The MC-1 was never used against enemy targets.
Specifications
The MC-1 was a 750-pound (340 kg) munition. The weapon had a diameter of 16 inches (41 cm) and a length of 50 inches (127 cm). The MC-1 was filled with about 220 pounds (100 kg) of sarin (GB) nerve agent. The MC-1 was designed to be air-dropped via the F-4 Phantom II and was unable to fit that aircraft's replacement, the F-16.
Demilitarization operations
Umatilla Chemical Depot stored about 2,400 MC-1 bombs until the final one was demilitarized and destroyed on June 9, 2006. Another 3,047 MC-1s were stored at Johnston Atoll when demilitarization operations began there in 1990. Those weapons were destroyed during the ensuing decade and operations at Johnston Atoll Chemical Agent Disposal System ended in 2000.