The Rolls-Royce MT30 marine gas turbine has been selected to power Australia’s new fleet of up to 11 general-purpose frigates, following Australia’s decision last year to procure Japan’s upgraded Mogami-class as a replacement for its existing general-purpose frigates, according to Rolls-Royce.
The Mogami-class is already powered by the MT30 in Japanese service, and the Royal Australian Navy has confirmed it will retain the same engine for its variant of the platform. The first three ships will be built in Japan by Mitsubishi Heavy Industries and exported to Australia, with the first scheduled for delivery in 2029 and operational service from 2030.
Alex Zino, Director of Business Development and Future Programmes, UK and International at Rolls-Royce Defence, said the company was “delighted to continue this long-standing partnership by powering their new general-purpose frigates with our MT30 engine” and added that Rolls-Royce was “pleased to support this collaboration between two nations that are combining capabilities to enhance the security across the region.”
In addition to the MT30 gas turbine, the upgraded Mogami-class frigates will be equipped with mtu Series 4000-based diesel generator sets from Rolls-Royce Power Systems, supplied through licensed partner Daihatsu InfinEarth, providing onboard power generation for a range of ship systems.
The MT30 is designed, assembled and tested at the Rolls-Royce site in Bristol and is in service with several navies globally, including the Royal Navy’s Queen Elizabeth-class aircraft carriers and Type 26 frigates, the US Navy’s Freedom-class Littoral Combat Ship and Zumwalt-class destroyers, and the Republic of Korea Navy’s Daegu and Chungnam-class frigates. The engine will also power Australia’s Hunter-class frigates, which are being built as part of a separate programme under the AUKUS framework, giving the Royal Australian Navy a degree of commonality across its major surface combatant fleet.
Rolls-Royce said the MT30 is the world’s most power-dense marine gas turbine currently in service, according to the company, offering power margin and platform design flexibility alongside efficiency and reliability through the life of the vessel.












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