AKA: UGM-27. Status: Active.
Development Cost $: 2,231.900 million. Recurring Price $: 2.813 million in 1965 dollars. Flyaway Unit Cost 1985$: 1.460 million in 1961 dollars. Total Number Built: 1092. Total Development Built: 87. Total Production Built: 1005.
More at: Polaris. Subtopics Polaris A1 American missile. Two stage vehicle consisting of 1 x A1P + 1 x A1P stage 2 Polaris TV American missile. Single stage test vehicle to test thrust-vectoring system. Polaris AX American missile. 2 stage experimental vehicle Polaris A2 American missile. In comparison to the A-1, the Polaris A-2 had a slightly longer first stage and a lighter second-stage motor casing. These features increased range to 2800 km (1500 nm), the performance originally envisioned by the Navy. Polaris A3 American missile. Two stage vehicle consisting of 1 x A3P + 1 x X-260 Polaris A3 A3T American missile. Two stage test vehicle consisting of 1 x A3P + 1 x X-260 Poseidon C3 American submarine-launched ballistic missile. SLBM, 2 stages, inertial guided, nuclear MIRV warhead, range that of twice Polaris A-3. STARS American test vehicle. Three stage target vehicle for anti-ballistic missile tests, consisting of a surplus Polaris A3 SLBM (A3P first stage + X-260 second stage) and an Orbus 1 third stage. Family: submarine-launched. Country: USA. Spacecraft: Early Spring. Agency: Lockheed . Bibliography: 17, 2, 281, 39, 563. Photo Gallery Polaris A1Once again, the Defense Department reorganized its space program. Primary responsibility for military space programs was assigned to the Air Force. ARPA retained responsibility for advanced research on missile defense, solid propellants, and several other projects. Existing projects were reassigned to the military services from ARPA - MIDAS and SAMOS to the Air Force,the Transit navigation satellite to the Navy, and NOTUS to the Army. These reassignments were not immediately effective, but the move toward Air Force development, production, and launching of military space vehicles was quite clear.
The only US test of an operational ballistic missile with a live 600 kiloton warhead. A Polaris A2 missile was launched from the ballistic missile submarine Ethan Allen (SSBN-608) 2800 km east-northeast of Christmas Island. The re-entry vehicle reached the target zone 1890 km away and detonated at 3,300 m. The resulting mushroom cloud was observed by the submarines Carbonero (SS-337) and Medregal (SS-480), both stationed within 25 km of the predicted impact point.
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