03 Jul

Triton specifications

Professional Mariner StaffAmerican Tugboat Review, Tugboats & Towing
Owner/operator: Seabulk Towing Builder: Master Boat Builders Designer: Robert Allan Ltd. Dimensions: 98.5’ x 43.5’ x 18.5’ Mission: Escort and assist duties Crew size: 4 to 6        Propulsion: Engines: (3) Cat 3512C generating 1,911 bhp at 1,600 rpm Bollard pull: 80 metric tons Vessel speed: 12.5 knots Propellers: (3) Schottel SRP 1012 z-drives Auxiliary generators: (2) Cat…
Read More
Caterpillar z-drives set Harley Marine’s latest tugs apart
03 Jul

Caterpillar z-drives set Harley Marine’s latest tugs apart

Professional Mariner StaffAmerican Tugboat Review, Maritime News
Dozens of RAmparts-series tugboats designed by Robert Allan Ltd. work in North American ports, but none quite are like Harley Marine Services’ Dr. Hank Kaplan and Rich Padden. These 5,350-hp RAmparts 2400 harbor tugs are the first with Caterpillar integrated propulsion systems featuring Cat engines and z-drives. Cat also supplied electrical generators powering the 80-by-36-foot vessels. Diversified Marine of Portland,…
Read More
03 Jul

Dr. Hank Kaplan/Rich Padden specifications

Professional Mariner StaffAmerican Tugboat Review, Tugboats & Towing
Owner/operator: Harley Marine Services/Starlight PNW Builder: Diversified Marine Designer: Robert Allan Ltd. Dimensions: 80’ x 36’ x 15’8” Mission: Harbor tug Crew size: 4      Propulsion: Engines: (2) Caterpillar 3516C Tier 3 mains each rated for 2,675 hp Bollard pull: 68 short tons ahead Vessel speed: 12.5 knots Z-drives: (2) Caterpillar MTA 524 Propellers: 4-blade, 2,400-mm diameter Auxiliary generators:…
Read More
Moran updates 93-foot workhorse for the Tier 4 era
03 Jul

Moran updates 93-foot workhorse for the Tier 4 era

Professional Mariner StaffAmerican Tugboat Review, Tugboats & Towing
Over the past two decades, 92- and 93-foot tugboats have become the backbone of Moran Towing’s ship-assist fleet. With Benson George Moran, that venerable class has undergone its first update since 2011. The 6,772-hp vessel, named for Moran chairman Paul Tregurtha’s grandson, is the company’s first with EPA Tier 4-rated propulsion. The 93-by-38-foot tug is 12 percent more powerful than…
Read More
03 Jul

Benson George Moran specifications

Professional Mariner StaffAmerican Tugboat Review, Tugboats & Towing
Owner/operator: Moran Towing Corp. Builder: Washburn & Doughty Designer: Washburn & Doughty Dimensions: 93’ x 38’ x 16.5’ Mission: Ship docking and escort Crew size: 4, accommodations for 6      Propulsion: Engines: (2) Caterpillar 3516 Tier 4 each producing 3,386 hp Bollard pull: 80 metric tons Z-drives: (2) Rolls-Royce US 255 Propellers: (2) 110” stainless-steel props Auxiliary generators: (2)…
Read More
Third engine gives Daisy Mae versatility and power to spare
03 Jul

Third engine gives Daisy Mae versatility and power to spare

Professional Mariner StaffAmerican Tugboat Review, Tugboats & Towing
Rodriguez Shipbuilding has made shallow-draft, triple-screw tugboats something of a specialty. Its latest product is Daisy Mae, built for Coeymans Marine Towing (CMT). The 83-foot tugboat is based at the Port of Coeymans 10 miles south of Albany. It’s primarily used for moving material to New York City more than 100 miles to the south. “The bulk of the business…
Read More
03 Jul

Assateague specifications

Professional Mariner StaffAmerican Tugboat Review, Tugboats & Towing
Owner/operator: Vane Brothers Builder: Conrad Orange Designer: Castleman Maritime Dimensions: 110’ x 38’ x 17’ Mission: Transporting clean oil products Crew size: 6      Propulsion: Engines: (2) Cummins QSK60 engines each generating 2,200 hp Bollard pull: 40 metric tons Vessel speed: 13 knots light, 10 knots loaded barge Propellers: (2) Hung Shen 102”x79” 4-bladed bronze props Gearbox: (2) Reintjes…
Read More