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27 Mar 2023

Lockheed Martin wins new contract for Trident II missiles to UK

Lockheed Martin wins new contract for Trident II missiles to UK
Originally posted on Navy Recognition

Lockheed Martin Space was awarded a $474,220,267 modification (P00005) to exercise options under a previously- awarded contract (N0003022C0100) for Trident II (D5) missile production and deployed systems support. This contract award also benefits a foreign military sale to the United Kingdom.

The Trident II missile has a length of 44 feet and 6.6 inches (13.579 meters) and a diameter of 6 feet and 11 inches (2.11 meters) for its first stage. Its total mass is around 130,000 pounds (59,000 kg).

The Trident II missile can carry a variety of warheads, including 1-12 Mk-5 RV/W88 warheads (475 kilotons), or 1-14 Mk-4 RV/W76-0 warheads (100 kilotons), or 1-14 Mk-4A RV/W-76-1 warheads (90 kilotons). It can also carry a single or multiple W76-2 warheads with yields of 5-7 kilotons.

The missile is propelled by three solid-fueled rocket motors, manufactured by Thiokol/Hercules for the first and second stages, and by United Technologies Corp. for the third stage. The propellant used is NEPE-75, which is a mixture of nitrate ester, plasticized polyethylene glycol-bound HMX, aluminum, and ammonium perchlorate.

The Trident II missile has a maximum range of more than 7,500 miles (12,000 kilometers), and its maximum speed during the terminal phase is approximately 18,030 mph (29,020 km/h) or Mach 24 (8,060 m/s).

The missile uses an MK 6 astro-inertial guidance system, which is capable of receiving Global Positioning System updates, and a single movable nozzle for steering. Its accuracy is estimated to be around 100 meters.

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