The MT7 Marine Gas Turbine

Compact power... for the most demanding marine applications 6 Апрель 2015, 09:04


The Rolls-Royce MT7 marine gas turbine features the very latest in gas turbine technology offering a proven combination of a market leading power to weight ratio and low through life costs. Delivering power of between 4 to 5MW, the MT7 is a compact power plant with excellent fuel efficiency and performance retention.

MT7 is well suited to a variety of system configurations offering
ship designers and builders increased flexibility in terms of propulsion system layout, and can be configured for either mechanical or electrical drive.


The MT7 is a member of the successful AE family of aero engines that has accumulated over 48 million operating hours and shares proven common core architecture with the AE 1107C-Liberty aero engine that powers the unique Bell Boeing V-22 Osprey tilt-rotor aircraft.
Rolls-Royce has delivered over 4,500 AE family engines, a heritage
which allows MT7 to draw upon well established methods and
processes at our production facilities, and a supply chain that delivers
hundreds of engines annually. A global aftermarket support network
ensures availability. MT7 is the proven and low-risk engine solution for
today’s modern marine applications. 

Through life support and service

Commonality within the AE family allows the MT7 to benefit from well
established production facilities, a supply chain that delivers hundreds
of engines annually, and an aftermarket support network that quickly
and efficiently returns engines to service.
The MT7 shares a proven common core architecture with the
AE 1107, AE 2100 and AE 3007 aero engines, incorporating high
efficiency components with reduced maintenance requirements
for a long service life.  Field-proven AE family upgrades exist today
to increase the MT7 available power by up to 20 per cent or extend
engine life. This power growth capability can accommodate larger
payloads or realise life cycle cost savings making the MT7 the engine of
choice in its class. 

Unique cold-end drive technology

The twin-shaft axial design of the MT7 comprises a 14-stage
compressor followed by an effusion-cooled annular combustor,
a two-stage gas generator turbine and a two-stage power
turbine. The engine is cold-end drive featuring six stages of
variable compressor vanes, dual channel Full Authority Digital
Electronic Control system (FADEC), modular construction and an
‘on-condition’ maintenance capability. Proven components are
utilised throughout the engine, with key parts protectively coated
to resist sand erosion and salt corrosion to ensure optimum
performance in the most challenging of marine environments.
Fuel and oil systems are fully integrated on the engine assembly,
making it a compact, lightweight yet powerful unit.


● Unique 4-5MW powerplant capable of meeting the
demanding requirements of hovercraft and ship propulsion.
● Shares a common core with AE 1107, AE 2100 and AE 3007
family of engines proven over 48 million operating hours.
● Due to enter service with the US Navy’s new Ship-to-Shore
Connector (SSC) hovercraft built by Textron Marine &
Land Systems.
● Low-cost, performance-enhancing upgrade options
to improve performance.