MAN Energy Solutions has secured two contracts for the supply of its MAN 175D engines for two Portuguese Navy projects.
The first order, placed by Damen Shipyards Group, includes multiple engines for a new multi-purpose vessel (MPV).
Under the contract, MAN Energy will deliver one shipset consisting of two 12V175D-MEM engines and two 16V175D-MEM engines.
The MPV will be equipped with a combination of 12V175D-MEM and 16V175D-MEM engines, with each unit delivering 1800kW and 2400kW respectively at 1,800 rpm.
Scheduled for delivery in 2025, the engines will power the 107 metre (m) long MPV, intended for various roles such as oceanic research, search and rescue, and emergency relief.
The vessel, which will also support maritime safety and naval operations, is expected to be operational by 2026.
MAN Energy Solutions High-Speed Sales, Marine Four-Stroke head Florian Keiler said: “This vessel’s multi-purpose functionality will enable the Portuguese Navy to execute the most demanding missions, as well as give it the ability to perform research at the greatest ocean depths.
“A particular requirement for this order related to structure-borne noise and, accordingly, the 175D GenSets will come with double-resilient mounting to meet all noise requirements over the full frequency range.”
Portuguese shipbuilder West Sea – Estaleiros Navais has also ordered MAN 175D engines for six new 83m offshore patrol vessels (OPVs).
Each OPV will feature two 16V175D-MEL engines, with each unit providing 2,96kW of power at 1,800rpm.
These engines will be constructed at MAN Energy Solutions’ facility in Frederikshavn, Denmark, and are scheduled for delivery from early 2026 to mid-2029.
The Viana do Castelo-class OPVs, to be built at West Sea’s shipyard in northern Portugal, are expected to be delivered 18 months after each engine delivery.
Primary functions of the Viana do Castelo-class OPVs will include maritime surveillance, patrol missions, and search-and-rescue operations, with potential military use depending on their onboard equipment.
MAN Energy Solutions High-Speed Navy sales manager Dietmar Zutt said: “This is an excellent reference for the MAN 175D as naval vessels have high requirements in terms of manoeuvrability, speed, maintenance cycles and environmental considerations.
“West-Sea and the Portuguese Navy jointly chose this engine mindful that each vessel’s power requirement of about 6 MW can be achieved with just two compact 16V175D-MEL GenSets.
“These offer the segment’s best power-to-length ratio – a unique selling point – meaning they can deliver power requirements with eight fewer cylinders than rival engines, freeing up space in the engine room and lowering maintenance requirements.”
The MAN 175D engines are designed to offer “superior dynamics”, and resilience to high temperatures, ensuring full power without the need for derating.
They also feature “low-load endurance”, allowing for 24-hour operation at low power while eliminating the need to increase engine output.
Additionally, the engines are equipped with a control system that ensures a high level of cybersecurity and are capable of CO₂-neutral operation using 100% Fatty Acid Methyl Esters (FAME) fuels.
In September 2024, MAN Energy was selected to provide a new propulsion package for the UK Royal Fleet Auxiliary’s three future Fleet Solid Support vessels.
