National Fisherman

Power & Propulsion

David Santos is ZF's senior manager and commercial fast craft manager for North America and Central America. ZF photo.

PME exhibitor preview: ZF Marine

NF Staff

When they lengthened and sponsoned the Progress in 2019, the owners knew it would need more power to optimize performance and efficiency. In 2024, they replaced a 1200-hp Cat with a 2000-hp Cummins QSK60. Bering North photo.

Bering Sea trawler gains new power with Cummins

Paul Molyneaux

F/V Kimberly K, owned by Westbank Fisheries, is one of several commercial fishing vessels planning or completing repower projects with Mitsubishi engines supplied by Laborde Products. Photo courtesy of Westbank

Fishermen find value in Mitsubishi engines from Laborde Products

Paul Molyneaux

The GM 6-53 "was the beating heart of the Hard Times. It ran and ran and ran...sometimes when I went down forward for something I would pause for a second or two and just marvel at it as it roared." Photo courtesy of Jerry Fraser

Jerry_Fraser

From Johnson Seahorse to screaming jimmy

Jerry Fraser

Mirage, a 50-foot longliner and troller, is now equipped with a hybrid diesel-electric propulsion system. ALFA photo.

Alaska's first hybrid-electric fishing boat lowers costs, boosts ocean environment

Margaret Bauman

Josh Sanford, who bull rakes for clams in Raritan Bay on the New Jersey/New York border powers his 21-foot, 1981 T-Craft with a used 150-hp Yamaha four-stroke from Skipjack Marine. Skipjack Marine photo.

Getting everything Yamaha has to give

Paul Molyneaux

On the lobster boat, Paradigm, in Jonesport, Maine, a newly installed 900 HP Scania DI16 083M is ready for testing. Scania distributor, Mack Boring will soon have higher efficiency, 800-hp 13L and 16L Scania marine engines available. Photo courtesy of Pau

Mack Boring powers the lobster industry

Paul Molyneaux

Homer, Alaska, boatbuilder Ivan Bargasin had a Nanni shipped north to repower his propeller driven 32-foot Bristol Bay gillnetter. Built on a Scania Block, the Nanni N13 is paired with a ZF360 gear at 1.5:1. Ivan Basargin photo.

Kraft Power delivers Nanni engines to US fishermen

Paul Molyneaux

Kodiak fishermen Theresa Peterson (second from left) and Danielle Ringer (fourth from left) educated Senate staffers about fisheries needs in the ReSCUE Oceans Act. Photo courtesy of Allison Shelley for Carbon to Sea

Fishermen take interest in federal marine carbon dioxide removal research bill

Sarah Schumann

“It’s not really about having a variety of propeller styles,” says Doug Peck of New England Propeller Inc. “It’s about matching the diameter and pitch of the propeller to the vessel so the engine performs in its rated RPM range. Photo courtesy of New Engl

Propellers, practicality and the push toward efficiency

Carli Clancy

The Michael and Kristin, a 65-foot offshore lobsterboat built in 1982 at Gladding and Hearn, hauled out on the 400-ton Syncrolift at Rose Marine in Gloucester. “We’re putting a new shaft in,” says Frank Rose, company owner and head of operations. Photo co

Rose Marine serves the industry with a large inventory of propeller shafts

Paul Molyneaux