HMCS Bras d'Or (FHE 400)

HMCS Bras d'Or (FHE 400) was an experimental hydrofoil warship of the Royal Canadian Navy, named after the Bras d'Or Lake in Nova Scotia. Designed and built in Canada, the Bras d'Or was intended to serve as a fast, anti-submarine patrol vessel. The ship utilized a unique surface-piercing hydrofoil system that allowed it to "fly" above the water at high speeds, significantly reducing drag and increasing its operational range.

Construction of the Bras d'Or began in 1960, with launch occurring in 1968. Extensive trials and testing followed, demonstrating the vessel's impressive capabilities, particularly its speed and seakeeping qualities in rough seas. However, the project faced challenges related to maintenance, complexity, and cost.

Ultimately, the Bras d'Or program was cancelled in the early 1970s due to budgetary constraints and a shift in Canadian naval priorities. Despite not entering full operational service, the Bras d'Or represented a significant achievement in naval engineering and remains a notable example of Canadian innovation. The vessel is currently preserved at the Canada Science and Technology Museum in Ottawa.