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UGM-73 Poseidon
Strategic SLBM / From Wikipedia, the free encyclopedia
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The UGM-73 Poseidon missile was the second US Navy nuclear-armed submarine-launched ballistic missile (SLBM) system, powered by a two-stage solid-fuel rocket. It succeeded the UGM-27 Polaris beginning in 1972, bringing major advances in warheads and accuracy. It was followed by Trident I in 1979, and Trident II in 1990.
Quick Facts Type, Place of origin ...
UGM-73A Poseidon C3 | |
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![]() A Poseidon missile lifts off after being launched from the submerged USS Ulysses S. Grant (SSBN-631) in May 1979 | |
Type | Strategic SLBM |
Place of origin | United States |
Service history | |
In service | 31 March 1971 to September 1992 (Trident I phased in from October 1979) |
Used by | United States Navy |
Production history | |
Manufacturer | Lockheed Missiles Division |
Specifications | |
Mass | 64,400 pounds (29,200 kg) |
Length | 34.1 feet (10.4 m) |
Diameter | 74 inches (1.9 m) |
Warhead | 10 or 14 W68 warheads in Mark 3 RVs; 40 kilotonnes of TNT (170 TJ)[1] |
Engine | Two-stage solid-fuel rocket, each single nozzle with thrust vectoring |
Operational range | With 14 RVs: 2,500 nautical miles (4,600 km), with 10 RVs: 3,200 nautical miles (5,900 km) |
Maximum speed | 8,000 mph (13,000 km/h) (terminal phase) |
Guidance system | Inertial |
Accuracy | 0.3 nautical miles (560 m) CEP |
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