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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 also features two components not fitted on the P-8A, a Telephonics APS-143 OceanEye aft radar and a magnetic anomaly detector (MAD). [79] On 4 January 2009, India's Ministry of Defence signed a US$2.1 billion (~$2.9 billion in 2023) agreement with Boeing for eight P-8Is to replace the Indian Navy's aging Tupolev Tu-142 M maritime ...
16 Polaris A3 or Poseidon C3 or Trident I C4 missiles, 4 × 21-inch (533 mm) torpedo tubes, 12 torpedoes [2] The James Madison class of submarine was an evolutionary development from the Lafayette class of fleet ballistic missile submarine .
The U.S. Navy began to replace Polaris with Poseidon in 1972. The B-3 missile evolved into the C-3 Poseidon missile , which abandoned the decoy concept in favor of using the C3's greater throw-weight for larger numbers (10–14) of new hardened high-re-entry-speed reentry vehicles that could overwhelm Soviet defenses by sheer weight of numbers ...
Poseidon offered a massive MIRV capability of up to 14 warheads per missile. [15] Like the Soviets, the US also desired a longer-range missile that would allow SSBNs to be based in CONUS. In the late 1970s the Trident I (C-4) missile with a range of 7,400 kilometres (4,000 nmi) and eight MIRV warheads was backfitted to 12 of the Poseidon ...
The Lockheed P-3 Orion is a four-engined, turboprop anti-submarine and maritime surveillance aircraft developed for the United States Navy and introduced in the 1960s. Lockheed based it on the L-188 Electra commercial airliner; it is easily distinguished from the Electra by its distinctive tail stinger or "MAD" boom, used for the magnetic anomaly detection (MAD) of submarines.
The C4 and D5 designations put the missiles within the "family" that started in 1960 with Polaris (A1, A2 and A3) and continued with the 1971 Poseidon (C3). Both Trident versions are three-stage, solid-propellant, inertially guided missiles, and both guidance systems use a star sighting to improve overall weapons system accuracy.
United States Navy Special Projects Office, 1963. United States Navy Special Projects Office (SPO) is a former research and design office of the United States Navy, responsible for the coordination of the development and design of the US Navy Fleet Ballistic Missiles (FBM) Polaris and Poseidon.