The M/V Marne B, owned by Pa.-based Industry Terminal & Salvage Inc., has been fitted with twin Mitsubishi S12R Tier 3 engines, each rated at 1,350 horsepower at 1,600 rpm.

M/V Marne B repowered with Mitsubishi Tier 3 engines

A towboat operating on the inland waterways has been repowered with new main engines as part of an effort to extend its service life and maintain operational performance. The M/V Marne B,

Wärtsilä 25 ammonia engine. [Image: Wärtsilä]

Wärtsilä 25 ammonia engine gets a power rating increase

Wärtsilä has increased the power rating of its four‑stroke Wärtsilä 25 ammonia engine. As part of the company’s ongoing development of ammonia‑fueled engine solutions, the upgrade to the Wärtsilä 25 ammonia engine

The M/V Larry Gravely, a new inland towboat built by Diversified Marine, powered by twin Mitsubishi Tier 3 S6R2-Y3MPTAW engines.

Diversified Marine completes M/V Larry Gravely towboat

A new towboat built by Diversified Marine in Houma, La., has been equipped with main engines supplied by Laborde Products. The M/V Larry Gravely is a twin-screw vessel designed for inland waterway

Op-Ed: Net zero by 2050? This decade’s fuel choices will decide

Green-hydrogen based synthetic fuels are stalled by a coordination problem across industries. Pooling demand and investment across sectors could unlock the production scale needed for shipping and other hard-to-abate industries, while strengthening

RINA

RINA and Hanwha cooperate to promote advanced battery-hybrid propulsion systems

With their eyes on the RO/RO ferry sector, Genoa-headquartered classifications RINA and Hanwha Group have signed a Memorandum of Understanding (MOU) aimed at promoting the adoption of advanced battery hybrid propulsion systems

Op-Ed: How cruise is setting the standard for low-methane slip on LNG

As the cruise industry embraces LNG, the conversation has shifted from feasibility to methane slip. Advances in engine technology, independent validation, and real-world operations show LNG becoming a credible, scalable fuel for

Truck-to-ship methanol bunker fuel delivery in South Florida. [Photo: World Fuel]

Two U.S. fuel suppliers team up to offer regulatory-compliant methanol bunkering

World Fuel Services and West Coast Clean Fuels say that they have now established a proven, regulatory-compliant, methanol bunkering capability that is available to vessel owners and operators across U.S. ports. The

Hydrogen-fueled J-ENG 6UEC35LSGH will power a 17,500‑DWT multi-purpose vessel. [Image: J-ENG/MOL/Onomichi Dockyard]

J-ENG in hydrogen-fueled two stroke first

Japan Engine Corporation (J‑ENG) has successfully begun hydrogen co‑firing operation in all cylinders of a fully Japanese-made, large, low‑speed, two‑stroke hydrogen-fueled engine. According to J-ENG, the 6UEC35LSGH engine is the world’s first

Devall Diesel, FPT launch barge power pack

Devall Diesel Services, Sulphur, La., introduced a new addition to its product line, the Barge Power Pack, an engine system designed for hazardous-duty barge operations. The system is intended for use on

Op-Ed: Biofuels move from theory to practice at sea

By Siddhesh Prabhu, Surveyor, IRClass For many shipowners, the conversation around decarbonization is no longer about long-term ambition alone. It is increasingly about what can be done now, within existing operational and

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