Raytheon, a unit of aerospace and defence company RTX, has secured a $646m contract to continue manufacturing AN/SPY-6(V) radars for the US Navy.

The contract represents the fourth option activated from an initial March 2022 award, which includes hardware, production, and sustainment, with a potential value reaching $3bn across a five-year span.

Under this agreement, the US Navy will acquire four more radars, bringing the total number of radars scheduled for purchase to 42.

Most of the activities under this contract will take place at the Andover facility, continuing through 2028.

Raytheon president of naval power Barbara Borgonovi said: “SPY-6 enables the US Navy to see further than they’ve ever seen before, providing sailors with more time to respond to detected threats.

“This latest contract builds on our decades of experience and technical expertise in developing modular, scalable, and highly maintainable radars.”

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Recently, Raytheon secured a $536m contract from the US Navy for continued integration and test support for its SPY-6 radar family. This deal builds on a 2018 agreement for integration and production support and will see the SPY-6(V)4 variant installed on Aegis Flight IIA destroyers.

Raytheon’s SPY-6 radar family is intended to deliver advanced air and missile defence capabilities across seven different classes of US Navy vessels.

The first system was installed in 2021 on the USS Jack H. Lucas (DDG 125) of the Aegis Flight III class.

At present, two Navy ships are equipped with SPY-6 radars, with three additional installations expected in 2025. Each SPY-6 system aboard a destroyer includes four radar arrays, along with associated power, cooling, and signal-processing systems.

The Navy plans to deploy the SPY-6 on more than 60 ships over the next ten years, boosting protection against airborne, surface, and ballistic missile threats.

The technology is based on scalable radar modular assemblies (RMAs). An RMA functions as an autonomous radar antenna and is encapsulated within a 2ft cubic box. These RMAs can be combined in different configurations to suit a variety of ship classes, making SPY-6 the first radar family in the Navy’s inventory to offer such scalable design, according to Raytheon.