Fastest warship

Excluding hovercraft, the fastest warship speed recorded was by the Royal Canadian Navy’s experimental hydrofoil Bras d’Or which exceeded 63 knots (117 km/h, 72 mph) during unarmed trials in 1969. Built by Marine Industries, Sorel, it measured 49.95 m by 20 m across the foils (163.9 by 65.6 ft) and was powered by a 30,000 hp gas turbine driving twin screws. The project was cancelled in 1971 and it was laid-up, becoming a museum at L’Islet-sur-Mer near Quebec in 1982.

The fastest warship with a displacement hull was the French destroyer Le Terrible which reached a maximum speed of 45.02 knots (83.38 km/h; 51.8 mph) during trials in January 1935. Its twin turbines normally developed 73,000 shp for 37 knots (68.52 km/h; 42.58 mph) but for one hour during trials it averaged 43.8 knots (81.82 km/h; 50.40 mph) at 89,265 shp.