At 60 toes in size, the Seaway Trident is right-sized for maneuvering inside lock chambers
Recently delivered to the Great Lakes St. Lawrence Seaway Development Corporation (GLS) by Washburn & Doughty, East Boothbay, Me., the Seaway Trident is a extremely custom-made, ice-strengthened tugboat primarily based on Glosten’s HT-60 idea.
The Seaway Authority was out there for an agile tug that would climate the icy circumstances of the St. Lawrence Seaway whereas performing building work, routine upkeep of aids to navigation, and ice administration in and round lock chambers. To meet its necessities, Glosten custom-made all components of the design to reinforce the Trident’s capacity to carry out its supposed work features.
“The HT-60 is a Glosten concept that was introduced to provide operators with enough versatility to excel at a variety of harbor services, but especially barge-handling in confined waterways,” mentioned Peter Soles, marine operations & enterprise improvement at Glosten, and undertaking supervisor on the design and building of Seaway Trident. “This is precisely what GLS does in the Saint Lawrence – a variety of different work functions to maintain the operability of the Seaway. We had to design around some special requirements related to the boat’s ice management duties in winter. What they got in the end is an HT-60 variant that is uniquely suited to uphold the GLS mission.”
At 60 toes in size, the Seaway Trident is right-sized for maneuvering inside lock chambers, with a large 28-foot beam to enhance efficiency in ice and improve stability for deck crane operations.
The vessel’s Schottel Z-drive items are powered by a pair of Caterpillar C18 diesel engines turning carbon fiber shafts to ship a mixed 1,300 bhp at 1,800 rpm. To successfully carry out its duties in ice, the hull was strengthened to ABS Ice Class C0 requirements. The deck is outfitted with a Markey Machinery headline winch and a totally foldable Heila Marine deck crane.
After finishing a contract-level design bundle and technical specification, Glosten’s function on the undertaking continued with onsite assist at Washburn & Doughty throughout the Trident’s building.
The video exhibits the vessel on sea trials.
