|BCON013||40th Anniversary of Concordes Unveiling at Toulouse, unsigned||£20.00||Buy Now|
|BCON013S2||40th Anniversary of Concordes Unveiling at Toulouse, signed Christopher Orlebar & Richard Pike||£24.95||Buy Now|
|BCON013S||40th Anniversary of Concordes Unveiling at Toulouse, signed by Gilbert Defer||£35.00||Buy Now|
Issue Date: 11/12/2007
Issue Name: 40th Anniversary of Concordes Unveiling at Toulouse
Producer: Buckingham Covers
Stunning cover to commemorate the 40th Anniversary of the unveiling of Concorde at Toulouse. It features a French stamp and 11th December 2007 Toulouse CDS postmark, along with a special label and cachet to celebrate the 40th Anniversary of Concorde, and is available signed by Captain Gilbert Defer, or double signed by Captain Christopher Orlebar and Captain Richard Pike.
One of the greatest achievements of the original design was in overcoming the immense heat problems. At Mach 2, the front of the nose could reach 127 Celsius! Inventors came up with the solution of using the fuel, which stayed quite cool inside the wings, as a 'cooling' fluid, circulated to lower the air temperature inside the cabin.
Concorde took off with the help of extra power from it's afterburners, which reheated the jet exhaust gases with extra fuel, giving 20% more thrust - and unfortunately a lot more noise! The aircraft was also designed to cope with effects of supersonic shockwaves. As it accelerated from Mach 1 to Mach 2 the shockwave pushed the 'lift' on the upper surface of the wings further back. To compensate for this, the centre of gravity had to be moved otherwise she would have ended up nose-diving. Through a combination of 33 fuel tanks and many pumps, one of the two on-board engineers had to shift 12 tonnes of fuel toward the rear of the aircraft to counterbalance the new 'lift' position. When the plane slowed down at the end of it's journey, the fuel had to be pumped to the front again.
It is still one of the great machines of all time and perhaps the greatest plane ever built.
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