Wednesday, February 21, 2024

Bisso Towboat announces agreement with Main Iron Works to begin construction of ASD Tractor Tug

Bisso Towboat Co., Inc. is pleased to announce that we have signed an
agreement with Main Iron Works, LLC, Houma, LA to begin construction of a 5,000
BHP ASD Tractor Tug.

The tug will feature 2 — Caterpillar 3516E Tier 4F main propulsion engines generating
2,500 BHP each at 1600 RPM. The engines will drive 2 — Kongsberg US205S
Azimuthing Thrusters with 2400mm diameter stainless steel propellers in stainless
steel nozzles. Estimated Bollard Pull will be 66 Tons.

Auxiliary equipment will include a JonRie Series 240 Escort Winch, Caterpillar C4.4
118 KW Generator sets and a full complement of safety, monitoring and electronic

Tankage includes capacities for 30,162 gallons of diesel fuel, 1,442 gallons of lube
oil, 1,442 gallons of hydraulic oil, 2,000 gallons of DEF and 9,538 gallons of potable

The new tug will be the 6th ASD Tractor Tug constructed by Main Iron Works for
Bisso in the past eight years and further enhance Bisso’s position of operating the
largest fleet of ASD Tractor Tugs serving the Mississippi River ship-assist trade, with
ten ASD Tractor Tugs.

Construction is scheduled to commence in late 2022 with delivery in early 2024.

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