Marquette expands ASD fleet with new triple-screw towboat class


Marquette Transportation has launched a new class of triple-screw ASD towboats built by C&C Marine and Repair.

The Belle Chasse, La., shipyard delivered Cindy L. Erickson, the lead boat in the 6,600-hp class, in early 2018. Three months later, it completed M/V Chris Reeves, the second of up to four sister towboats. CT Marine of Portland, Maine, designed the vessels.

The 160-by-50-by-11.5-foot towboats are powered by three 2,200-hp Cummins QSK60 Tier 3 engines turning Steerprop SP25D z-drives from Karl Senner LLC. Cummins gensets provide electrical power.

“Structurally, there is no other towboat floating that has the moxie that the M/V Cindy has,” naval architect Christian Townsend said. “The raised stern is the first indicator that the boat does not share structural similarities to that of a conventional propulsion system.”

CT Marine also incorporated its flat tunnel design, which provides unequal water flow to the centerline wheels compared to the outboard wheels. The superstructure is set on springs to reduce noise and vibration. There are nine cabins with berthing for 13 people.

SCF Marine’s SCF Explorer is the third in a series of three triple-screw ASD towboats.

Karl Senner LLC

The third vessel in the class is due in August, and an optional fourth boat is tentatively set for delivery in December.

SCF Explorer
SCF Explorer is the third boat in SCF’s class of 6,600-hp, triple-screw ASD towboats also built by C&C Marine of Belle Chasse, La. The Shearer Group of Houston designed the vessels.

The 160-by-50-by-11.5-foot Explorer and its siblings SCF Vision and SCF Mariner are powered by three 2,200-hp Cummins QSK60 Tier 3 engines. They also have Steerprop SP25D z-drives, Centa intermediate shaft lines and Voith Safeset torque-limiting couplings provided by Karl Senner LLC. John Deere generators provide electrical power.

SCF Explorer has eight cabins spread across three decks. There are six full heads and one day head. Crew amenities include satellite TV and Internet, a workout room and a comfortable galley-mess area.
Jesse D. Pasentine/Capt. Troy J. Hotard
Florida Marine Transporters has built 94 towboats over the last 12 years, but Jesse D. Pasentine is the first built at the company’s own shipyard in Harvey, La. Gilbert Associates of Braintree, Mass., provided the plans.

Jesse D. Pasentine is the first vessel Florida Marine Transporters built at its Harvey, La., shipyard.

Florida Marine Transporters

The 120-foot vessel is powered by twin Caterpillar 3512 Tier 3 engines generating 2,000 hp each, which turn five-blade open-wheel props through Twin Disc reduction gears. Twin John Deere 175-kW gensets provide electrical power to the vessel.

Four Patterson 40-ton deck winches and a Schoellhorn-Albrecht capstan are installed on deck. The wheelhouse features Furuno electronics and navigation equipment. Jesse D. Pasentine pushes clean oil products in the Mississippi River and other inland waterways.

Jeff Brumfield, Florida Marine’s director of vessel construction, said Jesse is performing terrifically. He also praised the workmanship from crews at the company’s shipyard, where four more 120-foot towboats are under construction.

Across the Gulf of Mexico, Eastern Shipbuilding of Panama City, Fla., delivered Capt. Troy J. Hotard for Florida Marine and is building two more vessels for Florida Marine. These 90-foot, 3,000-hp tugs are powered by Caterpillar engines and have Patterson deck winches.

Ray S
Enterprise Marine Services took delivery late last year of the 3,000-hp Ray S from Conrad Shipyard in Amelia, La. Conrad also designed the vessel, named for longtime Enterprise Products employee Ray Sick.

The 102-by-36-foot vessel has twin Caterpillar 3512C Tier 3 diesel engines turning 88-inch, four-blade, stainless-steel props through Twin Disc gears. John Deere-Kohler 99-kW gensets provide electrical power.

Other components include Duramax coolers, Nabrico deck winches and a capstan from Schoellhorn-Albrecht. The wheelhouse features Furuno navigation equipment.

Fort Defiance is one of the last towboats Jeffboat delivered before shutting down.


Shawnee Forest/Fort Defiance
Jeffboat’s shipyard on the Ohio River in Jeffersonville, Ind., delivered two new ASD towboats for American Commercial Barge Line before closing for good.

The yard launched Fort Defiance in October 2017, followed by Shawnee Forest several weeks later. The 70-by-32-foot vessels are powered by twin 1,000-hp Caterpillar Tier 3 engines turning ZF Marine z-drives. Twin 65-kW John Deere 4045 Tier 3 generators provide electrical power.

The vessels, built for harbor use, can hold 22,200 gallons of fuel, 4,650 gallons of ballast and 5,800 gallons of potable water.

Sam P. Hise
Master Marine of Bayou La Batre, Ala., has delivered Sam P. Hise to Waterfront Services Co. of Cairo, Ill. The 67-by-28-foot vessel is the third boat in a four-boat order.

Propulsion comes from twin Mitsubishi Tier 3 engines each generating 803 hp paired with Twin Disc MG-5351 reduction gears at a 5:1 ratio. Twin 65-kW Northern Lights generators provide electrical power, and R.W. Fernstrum & Co. provided the engine keel coolers.

The vessel also has Wintech 40-ton deck winches, fendering from Schuyler Companies and a Mitsubishi split-system HVAC unit.

By Professional Mariner Staff