Initial Operational Capability (IOC):
Also Known As: B83-1
Origin: United States of America
Parent System: B83
Initial Operational Capability (IOC): 1983
Total Production: 650
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Description: The United States of America (USA) B83 is a variable yield, gravity free fall, nuclear bomb developed in the late 1970s at the Lawrence Livermore National Laboratory as the most powerful nuclear free fall bomb produced for the US military. The B83 entered service in 1983 with a maximum yield of 1.2 Megatons (1,200 kilotons) and leveraging technologies and components from the cancelled B77 nuclear bomb. The B83 has been designed for release at supersonic speed (up to Mach 2) and low/high altitudes by the B-1 bomber. It features a parachute retardation system and insensitive explosives to minimize accidental detonation of the nuclear device. Up to 650 B83 nuclear bombs were produced beginning in 1983 with the weapon still in service with the United States of America Air Force (USAF) as of early 2014. The B83 are heavier than the B61 and is more suitable for release by strategic bombers such as the B-1, B-2 and B-52. The B83 may be replaced in the 2020s by the more reliable and accurate B61 Mod 12 tactical nuclear bomb.
Diameter: 460 millimeter (18.1 inch)
Length: 3.70 meter (146 inch)
Weight: 1,100 kilogram (2,425 pound)
Yield: 1.20 megaton
CEP: Circular Error Probable
Meters (m) Kilometers (km) Nautic Miles (nm) Inch (in) Yard (yd) Foot (ft) Millimeter (mm)
Pound (lb) Kilogram (kg) kN (KiloNewton) Ton (t)
Meters per Second (mps) Kilometers per Hour (kph) Knot (kt) Miles per Hour (mph)
Liter (l) Galon (gl)
Year (yr) Minutes (min) Second (sec)
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on 24 Aug 2018
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