26 Jun

Mazu specifications

Professional Mariner StaffAmerican Tugboat Review, Tugboats & Towing
   Operator: G&H Towing Co. Owner: Suderman & Young Towing Co. Builder: Gulf Island Shipyards Designer: Robert Allan Ltd. Dimensions: 98’6” x 42’8” x 16’8” Mission: Escort and harbor assist      Propulsion:  Engines: (2) Tier 4 Caterpillar 3516E, 3,386 hp Bollard pull: 81.5 metric tons Vessel speed: 13 knots Z-drives: (2) Schottel SRP 510 FP  Gearbox: Lufkin MV1600S, 2:1…
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26 Jun

Mariner specifications

Professional Mariner StaffAmerican Tugboat Review, Tugboats & Towing
   Owner/operator: Western Towboat Co. Builder: Western Towboat Co. Designer: Western Towboat Co./KraftMar Design Services/Argonaut Marine Dimensions: 80’ x 32’ x 15’ Mission: Ship and barge assist Crew size: 4 Propulsion: Engines: (2) Tier 3 Caterpillar 3512C, 1,970 hp Bollard pull: 55 tons  Vessel speed: 13 knots Propellers: 80” Nautican 3-blade skewed props Thrusters: (2) Schottel SRP 1215 with Nautican…
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26 Jun

Capt. Jim McAllister specifications

Professional Mariner StaffAmerican Tugboat Review, Tugboats & Towing
   Owner/operator: McAllister Towing and Transportation Co. Builder: Eastern Shipbuilding Group Designer: Jensen Maritime Consultants Dimensions: 100’ x 40’ x 16’4” Mission: Ship assist, escort and rescue towing Crew size: 4-6 Propulsion: Engines: (2) Tier 4 Caterpillar 3516E, 3,386 hp Bollard pull: 82.5 metric tons ahead Vessel speed: 12 knots cruising, 14 maximum Z-drives: (2) Schottel SRP 4000 FP turning…
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26 Jun

Jamie Ann specifications

Professional Mariner StaffAmerican Tugboat Review, Tugboats & Towing
   Owner/operator: Saltchuk/Foss Maritime Builder: Nichols Brothers Boat Builders Designer: Jensen Maritime Consultants Dimensions: 100’ x 40’ x  20’8” Mission: Ship escort and assist Crew size: 8 Propulsion: Engines: (2) Tier 4 MTU Series 4000, 3,433 hp  Bollard pull: 92.36 short tons ahead Z-drives: (2) Kongsberg/Rolls-Royce US 255 Auxiliary generators: (2) 120-kW John Deere; (1) 65-kW John Deere harbor unit…
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26 Jun

Hercules specifications

Professional Mariner StaffAmerican Tugboat Review, Tugboats & Towing
   Owner/operator: Brusco Tug & Barge/Crowley Maritime Builder: Diversified Marine Designer: Robert Allan Ltd. Dimensions: 82’ x 40’ x 14’ Mission: Ship escort, docking and assist Crew size: 4     Propulsion: Engines: (2) Caterpillar 3516E, 3,004 hp Bollard pull: 88 tons ahead Vessel speed: 12 knots Z-drives: (2) Cat MTA 627 Auxiliary generators: (2) 118-kW Cat C7.1 Keel coolers: Duramax…
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26 Jun

Andrew S. specifications

Professional Mariner StaffAmerican Tugboat Review, Tugboats & Towing
  Owner/operator: Bisso Towboat Co. Builder: Main Iron Works Designer: Bisso Towboat Co./Main Iron Works Dimensions: 100’ x 38’ x 13.5’ Mission: Escort and ship assist Crew size: 4 Propulsion: Engines: (2) Tier 4 Caterpillar 3516E, 3,004 hp  Bollard pull: 84 tons (est.) Thrusters: (2) Kongsberg/Rolls-Royce US 255 FP z-drives Propellers: (2) 98.4” four-blade stainless-steel props in nozzles Auxiliary generators:…
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Tug construction rebounding, but hold the champagne
01 Jul

Tug construction rebounding, but hold the champagne

Professional Mariner StaffAmerican Tugboat Review, Tugboats & Towing
These have been some lean years for a lot of American shipbuilders. But yards that kept the lights on, and their workforce intact, are benefiting from an apparent rebound in new tugboat and towboat construction. There are several factors influencing the uptick, perhaps none as significant as the approaching deadline for all tugboats to meet Coast Guard Subchapter M standards.…
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Industry closely watching hybrid tug performance
01 Jul

Industry closely watching hybrid tug performance

Professional Mariner StaffAmerican Tugboat Review, Tugboats & Towing
Naval architects are often quick to point out that U.S. tugboat operators trail their European and Asian counterparts when it comes to adopting new technology. Lately, however, the gap appears to be narrowing. One diesel-electric, ship-assist tugboat has already been delivered, and at least five more are planned or under construction. These tugs represent the first non-conventional propulsion system on…
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Baydelta brings next-gen hybrid to the Bay Area
01 Jul

Baydelta brings next-gen hybrid to the Bay Area

Professional Mariner StaffAmerican Tugboat Review, Maritime News
Capt. Mike Harbarth steered Delta Teresa away from San Francisco’s Pier 17 and headed east. He slowed the new diesel-electric hybrid to a crawl as a sailboat or two clambered past. Then he started showing off. The gleaming tugboat spun clockwise and counterclockwise as nearly 100 people snapped pictures from shore. Most significant of all, the vessel performed these maneuvers…
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Peter Zwart remembered during Delta Teresa christening
01 Jul

Peter Zwart remembered during Delta Teresa christening

Professional Mariner StaffAmerican Tugboat Review, Tugboats & Towing
Baydelta Maritime has a tradition of naming its tugboats after its owners’ wives and daughters. Delta Teresa, named for Teresa Zwart, the wife of Baydelta’s late vice president of operations, Peter Zwart, represents a break from that tradition. Zwart was instrumental in Delta Teresa’s construction and outfitting, and he performed similar work on other Baydelta tugs through the years. Zwart…
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