Northrop Grumman has won the in-service support contract for the UK Royal Navy’s (RN) Astute-class submarine platform management system (PMS).

The contract was awarded by the UK Ministry of Defence’s Submarine Delivery Agency (SDA). The value of the contract has not been disclosed.

Under this contract, Northrop Grumman in the UK (NGUK) will support the in-service PMS to increase the availability of the submarines for deployment by the RN.

The PMS features control and monitoring software, along with human interface equipment and programmable logic controller-based hardware, which provides real-time information during operations.

The hardware is designed to comply with different naval standards, including temperature, vibration, shock, and electromagnetic compatibility requirements.

NGUK Europe and Middle East chief executive Nick Chaffey said: “We will leverage our proven design and manufacturing expertise to delivering this critical technology for one of the Royal Navy’s most advanced submarine fleets.

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“Our digital-first approach to delivery will reduce lifecycle costs and help the UK maintain its strength beneath the waves.”

The Northrop Grumman-built PMS is integrated on the RN’s Astute boats fourth to seventh.

The submarines include HMS Audacious (S122), HMS Anson (S123), HMS Agamemnon (S124) and HMS Ajax (S125).

Built by BAE Systems, the Astute-class vessels are capable of conducting anti-surface and anti-submarine warfare missions, surveillance tasks and humanitarian aid missions.

Northrop Grumman’s team in the UK has been engaged with this programme since April 2020 and supports more than 40 RN platforms.

The company’s PMS is also integrated on the Hunt-class minesweepers, Type 45 destroyers, and the UK’s next-generation nuclear deterrent.