Concorde fleet have been grounded, drained of hydraulic fluid and their airworthiness certificates withdrawn. Jock Lowe, ex-chief Concorde pilot and manager of the fleet estimated in 2004 that it would cost £10–15 million to make G-BOAF airworthy again. BA maintain ownership and have stated that they will not fly again due to a lack of support from Airbus. On 1 December 2003, Bonhams held an auction of British Airways Concorde artefacts, including a nose cone, at Kensington Olympia in London. Proceeds of around £750,000 were raised, with the majority going to charity. G-BOAD is currently on display at the Intrepid Sea,
Concorde aircraft histories Concorde aircraft histories Twenty Concorde aircraft were built, six for development and 14 for commercial service. These were All but two of these aircraft are preserved. The two prototype aircraft were used to expand the flight envelope of the aircraft as quickly as possible and prove that the design calculations for supersonic flight were correct. Both pre-production aircraft were used to further develop the design of the aircraft. Changes to design include different wing plan form, more fuel, different engine standard, different air intake systems etc. The production aircraft were different in many ways to the original aircraft necessitating re-examining