|BCON038||40th Anniversary of the Inauguration of Concorde's London to New York Service||
Issue Date: 22/11/2017
Issue Name: 40th Ann of Concorde's London to New York Servicece
Producer: Buckingham Covers
The 22nd November 2017 marks the 40th anniversary of the inauguration of Concorde's London to New York service. To commemorate this occasion we have produced this stunning cover. It features a 1st class Union Jack flag stamp and a Hounslow postmark (22nd November, 2017), and has a stunning image of Concorde mid flight.
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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