Life extension for 12 U.K. frigates includes MTU gensets

As part of the Royal Navy's vessel life extension program, twelve Type 23 frigates will each be equipped with four new MTU 12V 4000 M53B diesel gensets. Pictured: Diesel genset based on an MTU engine of the same type

AUGUST 6, 2015 — Rolls-Royce is to supply a total of 48 MTU diesel gensets, worth approximately €90 million, for 12 Duke-class (Type 23) frigates used by the U.K.’s Royal Navy. It is the first time that MTU engines will be in use with the Royal Navy in combat ships.

The vessels were built between 1985 and 2002 and each will be equipped with four new MTU 12V 4000 M53B diesel gensets, as part of the Royal Navy’s vessel life extension program.

The work is part of a program of upgrades to weapon systems, infrastructure and navigation equipment that will ensure that thefrigates, built between 1985 and 2002, continue in service and are able to be deployed worldwide for a number of years to come.

The diesel gensets, which each deliver 1,650 kW, will be delivered from late 2016 to Devonport Naval Base, where the repowering work is being carried out by Babcock Marine. The deal also includes a comprehensive logistics package for the provision of spare parts and introductory training package. The MTU brand is part of Rolls-Royce Power Systems within the Land & Sea division of Rolls-Royce.

Once the new engines are in place, Rolls-Royce will be responsible for the total power output of the Duke-class frigates. The propulsion system will comprise Rolls-Royce Spey SM1A or SM1C gas turbines with the MTU diesel gensets, enabling the vessels to accelerate to up to 28 knots.

The diesel gensets include sophisticated noise and shock control technologies, alongside exceptional reliability. Their low space requirement also makes them easy to integrate into the frigate’s existing engine room.