National Fisherman

Power & Propulsion

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 Stewart

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

From top left: Lia Morris, senior community development officer, Island Institute; Patrick Fogg, president, Fogg’s Boatworks; George “Casey” Morrill, dock manager Spruce Head Co-op; Chris Ponnwitz, chief commercial oficer, Mack Sustainable Energy, Mack Boring & Parts Co.; Tom Watson, president, ePropulsion Americas; Phoebe Wheeler, community development officer, Island Institute; Bob Baines, captain F/V Thrasher, former Spruce Head Co-op president. Island Institute photo.

Maine lobstermen plug in with new electric workboat

NF Staff

Caudwell Marine brought its new 300-hp diesel outboard to Pacific Marine Expo, aiming to offer commercial operators a high-power alternative to gas outboards. Doug Stewart photo.

Caudwell is the new diesel outboard on the block

Paul Molyneaux

The diesel-powered fishing vessel Mirage is slated to be converted to hybrid diesel-electric propulsion. Alaska Longline Fishermen’s Association photo.

Innovative propulsion systems coming for Alaska fishing boats

Margaret Bauman