suffered corrosion. The main foils featured several parts: two anhedral foils, two anhedral tips, two dihedral foils, and a centre high-speed foil. The steerable front foil featured two anhedral sections and two dihedral sections with a strut down the middle, resulting in a diamond shape. The ship's helmsman had to be qualified as both a sea pilot and an aircraft pilot. Bras d'Or had two propulsion systems: one for foilborne operation and one for hullborne operation, which included four engines. Foilborne power was provided by a FT4A-2 gas turbine developing at 21,500 rpm through General Electric gearboxes to a pair of three-bladed supercavitating propellers. Hullborne propulsion was driven by a Paxman Ventura 16YJCM sixteen-cylinder diesel engine to a pair of variable-pitch propellers. Auxiliary power and electrical power while foilborne was provided by an ST6A-53 gas turbine powering an auxiliary gearbox. Both of the P&W turbines were built by United Aircraft of Canada. There was also a Garrett GTCP85-291 gas turbine for essential ship electrical requirements in emergencies. On 5 November 1966, a de Havilland employee was in the main engine room with the ST6 running when a hydraulic fluid leak ignited on a hot joint in the ST6's exhaust stack, resulting in a flash fire. The technician responsible for the fire-suppression system rescued the employee, but as a result did not have time to activate the fire-suppression system. The fire was put out one and a half hours later by the Sorel fire department. This delayed the ship's launch to 12 July 1968 and cost $5.7 million. Trials Bras d'Or first flew on 9 April 1969 near Chebucto Head off the entrance to Halifax Harbour. The vessel exhibited extraordinary stability in rough weather, frequently more stable at than a conventional ship at . Bras d'Or exceeded on trials, quite possibly making her the fastest warship ever built. It was however, never fitted with equipment for warfare (no weapons or weapons systems) and the title now lies with the Norwegian s that do , fully equipped. Cancellation Bras d'Ors trial program was abruptly cancelled on 2 November 1971 by Minister of National Defence Donald S. Macdonald, attributing it to a change in defence priority (from anti-submarine warfare to sovereignty protection). The ship was laid up for five years, then the program was completely cancelled by Liberal Government under Pierre Elliott Trudeau, with most of the valuable components either sold by Crown