Most Canadians have heard of the Avro Arrow, Canada's most famous (or perhaps infamous) foray into advanced military research during the Cold War. Much less well-known, unless, like me, you were born in Halifax in the 1960s, was the HMCS Bras d'Or, Canada's military hydrofoil project. I remember seeing the sleek little ship in the harbour when I was just a wee lad and even though she never got up to speed anywhere within sight of land, she was beautiful. Fifty metres long and displacing 240t, she had a ship's complement of 25. Being an experimental vessel, she was never equipped with armaments. Bras d'Or was built for speed and boy, could she go. Nicknamed the "Flying 400", she reached a maximum foilborne speed in sea trials of 63 knots and was described as highly-stable in rough seas at speeds of up to 40 knots. The project was cancelled in 1971, but the Bras d'Or remains on display at the Musée Maritime du Québec.