a modern, moulded plexiglas sliding cockpit hood was attached to what was essentially a 1932 aircraft. Communication between the passenger cabin in the fuselage and the cockpit to the rear was through a hole in the instrument panel. de Havilland Mosquito Before the end of the Second World War, de Havilland Canada built 1,134 Mosquitos, of which 444 were on strength with the RCAF in models Bomber Mk VII through Trainer Mk 29 from 1 June 1943 to 28 September 1951. de Havilland Canada (Grumman) CS2F Tracker In 1954, the Royal Canadian Navy decided to replace its fleet of obsolescent Grumman TBM Avenger antisubmarine warfare (ASW) aircraft with domestically produced, licence-built versions of the new Grumman S2F Tracker. The contract for the CS2F was worth , at the time, the largest post-Second World War Canadian defence contract. Subassemblies of the aircraft would be produced by various Canadian companies and shipped to de Havilland Canada facilities, where de Havilland would build the forward fuselage and crew compartment, assemble the aircraft, oversee installation of the ASW electronics, and prepare the aircraft for delivery. The first Canadian-built Tracker flew on 31 May 1956. A total of 99 Trackers was produced for RCN service starting in the same year. A few of these aircraft would serve with the Canadian military until the 1990s. A few ex-CF Trackers were sold to Ministry of Natural Resources (Ontario) (and later resold to Conair) for forest firefighting duties. Hydrofoil HMCS Bras d'Or (FHE 400) was a hydrofoil built from 1960 to 1967 for the Royal Canadian Navy. It served from 1968 to 1971 as a testing platform for antisubmarine warfare technology on an ocean-going hydrofoil. During sea trials in 1969, the vessel exceeded 63 knots (117 km/h; 72 mph), making her possibly the fastest warship in the world. The vessel was constructed at Marine Industries Limited of Sorel, Quebec, with de Havilland Canada the prime contractor. Retired by the navy, the hydrofoil now is displayed at the Musée maritime du Québec in L'Islet-sur-Mer, Quebec. Privatization In the 1980s, the government of Canada privatized DHC and in 1986 sold the aircraft company to then Seattle-based Boeing. The government claimed to have guarantees from Boeing not to discontinue any product lines, but shortly thereafter, Boeing discontinued both the successful Twin Otter and the Dash 7. The jigs and specialised equipment for their manufacture were destroyed. Boeing was in heavy competition