Rolls-Royce has secured a deal to supply complete MTU propulsion systems for five new Royal Navy Type 31 frigates.

To be used for main propulsion and on-board power generation, the order includes a total of 40 engines and generator sets.

It also comprises the MTU Callosum propulsion control and monitoring system and Integrated Logistics Support (ILS).

Each new frigate will be powered by four MTU 20V 8000 M71 engines, with each engine delivering more than 8,000kW.

The vessels will have on-board power, provided by four MTU generator sets based on 16V 2000 M41B units. Each of the units will deliver in excess of 900kW.

The first shipset comprising four main propulsion engines and four generator sets is expected to be delivered by Rolls-Royce in September next year to prime contractor Babcock International Group.

During the service life of propulsion and onboard power systems, cost-effective maintenance will be carried out by ILS.

The MTU Callosum propulsion control and monitoring system are expected to be added to the supply contract.

Rolls-Royce business unit Power Systems Marine & Defense vice-president Knut Müller said: “We’re very proud of the fact that Babcock International Group has opted for MTU propulsion and on-board power solutions on this highly significant project.

“MTU products now feature in almost all current and future projects of the Royal Navy. That is impressive proof of the trust our British partners place in us and of the reliability and flexibility of our products.”

In future, the MTU Series 2000, 4000 and 8000 units will feature in most Royal Navy ships, including in destroyers (Type 45), all frigate classes (Type 23, 26, 31) and submarines (Astute class).