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A Polaris missile is launched by HMS Revenge in 1986. The original U.S. Navy Polaris had not been designed to penetrate anti-ballistic missile (ABM) defenses, but the Royal Navy had to ensure that its small Polaris force operating alone, and often with only one submarine on deterrent patrol, could penetrate the ABM screen around Moscow. Britain ...
The Polaris Sales Agreement provided an established framework for negotiations over missiles and re-entry systems. [52] The legal agreement took the form of amending the Polaris Sales Agreement through an exchange of notes between the two governments so that "Polaris" in the original now also covered the purchase of Trident.
The Navy's Special Projects Office, charged with developing the Polaris-Submarine weapon system and the Fleet Ballistic Missile capability, has developed a statistical technique for measuring and forecasting progress in research and development programs. This program evaluation and review technique (code-named PERT) is applied as a decision ...
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.
The United Kingdom's Polaris programme, officially named the British Naval Ballistic Missile System, provided its first submarine-based nuclear weapons system. Polaris was in service from 1968 to 1996. Polaris itself was an operational system of four Resolution-class ballistic missile submarines, each armed with 16 Polaris A-3 ballistic missiles.
The US Polaris A-3T warhead was the US W58. Britain considered but never used the W58 because the British safety authorities considered it unsafe in several respects. Instead they fitted a hybrid of a US W59 fusion secondary, triggered by a new British primary based on a Cleo boosted-fission device tested in Nevada as PAMPAS and TENDRAC.
A 43-inch R2-D2 unit, crafted from parts used during the original trilogy, recently sold at auction for an incredible $2.76 million — far surpassing its $2 million pre-sale estimate.
The missile warhead detonated at 23:30 GMT on May 6, 1962, approximately 1.2 miles (2 km) from the designated target point, and at the target altitude of 11,000 ft (3,400 m). The detonation was successful and had the full design yield of the W47Y1 at approximately 600 kilotons. The shot was designed to improve confidence in the US ballistic ...