Northrop Grumman/Rolls-Royce Team Selected as Preferred Supplier
(Source : Northrop Grumman ; issued Nov. 1, 2000)


SUNNYVALE, Calif.---A team led by Northrop Grumman Corporation and Rolls-Royce has been selected as the preferred supplier for marine gas turbines for the U.K. Type 45 D class destroyer, the new air defense destroyer for the United Kingdom's Royal Navy.

The Northrop Grumman/Rolls-Royce team, supported by French marine engineering company DCN, will supply the intercooled and recuperated WR-21 marine gas turbine engines for the first three new Type 45 D class destroyers of a planned class of 12.

The Type 45's will replace the Royal Navy's long-serving Type 42 destroyers and are due to enter service in 2007.

"The innovative and proven intercooled and recuperated (ICR) engine, designed and developed by Northrop Grumman and Rolls-Royce, will bring a new generation product to the marine environment,'' said Jim Hupton, vice president of Northrop Grumman Marine Systems, a business unit of the company's Electronic Sensors and Systems Sector (ES3).

Unlike conventional marine gas turbine engines, the WR-21 features a recuperator downstream of the power turbine that recovers energy from the exhaust gas to increase fuel efficiency. This translates into extended ship range for a given fuel capacity, more unrefueled time on-station, or reduced fuel storage requirements for a given range. This can provide more space for additional weapons payloads.

"British ships will now be the first to benefit from the next generation of fuel efficient marine gas turbines specifically developed for naval applications,'' said Dr. Saul Lanyado, president-Marine for Rolls-Royce. "The engine has considerable export potential and we believe there will be a lot of interest from other navies around the world,'' Dr. Lanyado said.

The ICR design is currently being considered by the U.S. Navy for its DD-21 platform.

The engine has already demonstrated more than 25 percent annual fuel savings in mechanical drive configurations compared with existing simple cycle gas turbines and is on track to reach more than 27 percent in its final production configuration.

Northrop Grumman's Marine Systems business unit, based in Sunnyvale, is the prime contractor for the program and has overall responsibility for the engineering, systems integration, the intercooler and the recuperator. Rolls-Royce designed and developed the gas generator and power turbine. DCN is providing the enclosure.

Northrop Grumman ES3, headquartered in Baltimore, Md., is a world leader in the design, development and manufacture of defense electronics and systems, precision weapons, airspace management systems, space systems, marine systems, logistics systems, and automation and information systems.

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