This large tug was built in 1966 by Halifax Shipyard as the Haida Brave for Kingcome Navigation Limited of British Columbia. She was later sold to Reliance Towing, and then Rivtow Straits Limited, who renamed the tug Commodore Straits. She spent her time on the west coast towing newsprint, log, and pulpwood barges. She was laid up in 1990, and remained idle for several years. In 2003, she was purchased by Upper Lakes Group Limited of Toronto, ON, and given a refit and returned to service. She came to the Great Lakes via the Panama Canal. The Commodore Straits was used in grain transportation on the Lakes and St. Lawrence. In 2008, she received a raised pilothouse and was assigned to the heavy lift barge MarineLink Explorer for MarineLink, a division of Upper Lakes. The service was unsuccessful and the pair laid up in 2011 in Trois-Rivieres, QC.
In 2013, the Commodore Straits was purchased by Chaulk Air Inc. of Moncton, NB, who renamed the tug Chaulk Determination. However, she remained inactive. In early 2015, the tug sank at her dock, and after being raised, she was towed to Les Mechins, QC and scrapped.
- Type: Twin Screw Tugboat
- Year Built: 1966
- Builder: Halifax Shipyards Ltd., Halifax, NS
- Hull No.: 40
- Horsepower: 3,700 bhp
- Length: 130′ 00″
- Breadth: 34′ 01″
- Depth: 15′ 07″
- Port of Registry: Moncton, NB