Strategic missile UGM-73A Poseidon-C3




    management system:

    management software








    5600 km.

    year development:


    strategic missile ugm-73a poseidon-c3 In 1963, the U.S. started working out for a new ballistic missile submarines (SLBM), which received the designation UGM-73A" Poseidon-C3 ". This was to ensure SLBM qualitative transformation of the marine component of the strategic nuclear forces. Flight tests began in August 1966. Rockets launched from ground launchers Eastern test site. Program provided for 25 starts, including on board the submarine. In July 1970, tests were successfully completed.

    U.S. officials sanctioned and allocated funds for rearmament program 31 class SSBNs "Lafayette" missiles "Poseidon-C3". Missile early projects have decided to leave with BR "Polaris-A3". Production program 619 missiles "Poseidon" was completed in 1975, of which 496 have been installed on the submarine. Since March 1971 the submarine "Lafayette" began to go on combat patrols (SSBN633 "CASIMIR PULASKI" - the first of them) with new missiles on board.

    with the adoption by the missile system "Poseidon-C3" combat capabilities of U.S. SSBNs have increased significantly. So, if in 1967, 656 American SLBM "Polaris-A3" was established in 2016 warheads, in 1977, 496 missiles "Poseidon" carrying at least 4960 independently targetable warheads and 160 "Polaris-A3" yet 480. Thus, at a constant number of carriers, the number of nuclear warheads on them has grown 2.6 times. Increased firing range allowed to push the combat patrol SSBN areas from the areas where the Soviet Navy could actively use their anti-forces based on the national territory.

    In November 1966, the leadership of the Ministry of Defense has decided on the formation of the interim committee, the designation "Strata-X", whose task was to design and selection of promising concepts missile weapons systems. Surveys in 1966 - 1967 years of research presented the committee report, which was justified by the need to create a new sea-based missile system, which has higher operational and technical characteristics. Its development was conducted in 1968 on two programs: the creation of a new SLBM ("Trident"), having a firing range 9000 - 10000 km, and an increase in firing range missiles "Poseidon-C3". In July 1969, the Ministry of Defence decided that these programs overlap, and funding for the modernization of missiles "Poseidon" was discontinued.

    The missile system

    "Poseidon-C3" was in service until 1996, when the last missile boat was taken out of service in accordance with the provisions of the START-1 Treaty.


    strategic missile ugm-73a poseidon-c3 SLBM" Poseidon-C3 "- a two-stage missile with tandem staging. Solid propellant first stage, designed by "Hercules", had a body of fiberglass. And fold it using hydraulic nozzle made of an aluminum alloy. To reduce the overall length of the rocket it was "drowned" inside the fuel charge. In the working position the nozzle sets before starting the engine. In flight, to provide turn by angle of rotation applied Micro-use gas produced by the gasifier.

    Solid boosters 2nd stage development company "Thiokol Chemical Corporation", structurally different from the first-stage engine nozzle unit. Its nozzle made of fiberglass with a graphite liner partially "recessed". Fuel used in both solid propellant - the blending consisting of ammonium perchlorate and a hydrocarbon fuel with additives aluminum. Marching stage equipment bay and HSR connected using adapters made of aluminum alloy. For separation of the stages used fire method. In front of the adapters was fixed charge, works at the moment of separation. This method has been used in almost all U.S. SLBMs.

    inertial control system housed in a sealed instrument compartment. Application of the new GSP triaxial and electronic computing unit values led to CWE within 800m. Later, after the upgrade element base and the introduction of satellite systems "Loran-C" and "Transit", this figure could bring up to 470m. The control system provides controlled flight at the boost phase and breeding of warheads on individual goals.

    MIRV consisted of fighting compartment and the compartment propulsion. Fighting compartment included W-10 warheads 68 independently targetable capacity of 50kt each, as well as a set of tools to overcome missile defense system (light and heavy decoys Jammer, etc.). With such warheads range was 4600km. Has been tested and Trim six MIRV warheads of the same capacity. Missile range with BB number reached 5,600 km. Propulsion stage dilution provides guidance all warheads on targets located at a 10 thousand square. m. km. Equipping missiles with multiple warheads made it possible to implement the principle of multiple combat use SLBMs, including their use and provide for hitting starters ICBM potential enemy.

    In the process of re-

    submarine "Lafayette" missiles "Poseidon-C3" have been upgraded silos, as well as replacement of the fire control system on the Mk84 Mk88 that was caused by the need to solve problems not previously stood (eg, retargeting MIRV warheads ).


    reliability missiles "Poseidon-C3", proven trial run is 84%. Depth starter was 15-30m. All ammunition could be released at intervals of 50 seconds. Launch preparation time was about 15 minutes.


    General Characteristics

    Sighting range, km:
    - 10 BBs with MIRV
    - With 6 MIRV BB


    circular error probable (at maximum range), m

    0.8 (0.470)

    District breeding BB m. km


    missile UGM-73A

    Starting weight

    missiles, n


    Diameter, m


    Length, m


    Features Control

    Link Control, tf:
    - Engine stage I
    - Engine stage II



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