MAN Energy Equips Canadian Coastguard Vessels with Diesel-Electric Propulsion

The Canadian Coastguard, as part of a consortium with GE Power Conversion, ordered propulsion systems from MAN Energy Solutions for two Arctic offshore patrol ships (AOPS). MAN Energy will deliver the engines, shafts, and propellers for the AOPS’ integrated diesel-electric propulsion systems, as well as integrated logistics services documentation. The company will also provide a selective catalytic reduction (SCR) system with each engine.

“It’s always encouraging to win an order and, as a repeat order, the trust that it represents in our solution is significant,” said Daniel Eberhardt, Sales Manager Navy, Four-Stroke Marine, MAN Energy Solutions. “The MAN 32/44CR engine is optimal for providing the kind of power and reliability required by the extreme conditions that each Arctic/Offshore Patrol Ship must endure, while its Tier III compliancy is also critical in such a sensitive operating environment. This new order fits with our company’s desire to supply complete propulsion packs.”

Each vessel will feature four MAN 6L32/44CR engines—each delivering 3,600 kW—and will utilize common-rail (CR) electronic injection, high-efficiency turbochargers, electronic hardware, and variable valve timing. Irving Shipbuilding will construct the vessels in Halifax, Canada, with MAN Canada PrimeServ organizations providing service support to the Canadian Coastguard to use the AOPS throughout their operational life.

MAN 6L32/44CR engine; Image Credits: MAN Energy Solutions

MAN Energy’s CR injection system is suited for the AOPS’ operating environment, allowing the engine to withstand prolonged, low-load operation and/or quick load pickup for AOPS tasks like ice ramming. Combined with the SCR system, CR injection optimizes engine fuel consumption and emissions in compliance with IMO Tier III. These capabilities reduce each ship’s carbon footprint for operation in the fragile Arctic environment.

The company will supply two MAN Alpha five-bladed, bolted propellers that satisfy PC5 regulations and can be exchanged underwater. Alpha propellers cater to higher cavitation inception speeds, possible shock impacts, and mission-critical conditions requiring additional redundancy, silent operation with low hydro-acoustic signatures, and suppressed underwater-radiated noise.

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This September, the U.K. Ministry of Defense contracted MAN Energy Solutions to deliver a naval package that includes requirements for fleet solid support (FSS) ships, such as shock resistance, cyber security, NBC, integrated logistics support, efficiency, low-emissions, and reliability. Through a later retrofit of 32/44CR engines to green methanol, CO₂ emissions could be further reduced.

MAN Energy will supply 12 V32/44CR propulsion engines, six L32/44CR generator sets, SCR for each engine, three twin-screw Alpha CP propellers, and plant auxiliaries. The primary task of FSS ships will be the replenishment of dry stores for Royal Navy vessels. Mission capabilities include logistics support, operation support, anti-piracy, and anti-terrorism.

In late August 2024, New Times Shipbuilding Co. ordered 12 8G95ME-GI (gas injection) main engines from MAN Energy. These engines will be installed on 12 under-construction container vessels, rated at 18,000 teu, for Eastern Pacific Shipping Co. in Singapore. The ME-GI engine is a two-stroke propulsion model used in RoRo vessels, pure car and truck carriers, container vessels, bulk carriers, tankers, and LNG carriers. It offers ship owners, charterers, and operators with environmentally friendly, high efficiency operation, without the methane-slip emissions of traditional engines.