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London to Tokyo in two hours: Blueprints for 3,000mph hypersonic plane are
unveiled... But it will take 40 years to build
By Nick McDermott
Last updated at 7:22 AM on 20th June 2011
It will take only two hours to fly from London to Tokyo, be virtually pollution
free, and promises to be no louder than today’s modern planes.
There’s only one catch for prospective commuters – it will be another 40 years
before commercial flights take place.
Plans were yesterday unveiled for the first hypersonic passenger jet, which
would use three sets of engines to reach 3,125mph, more than four times the
speed of sound, known as Mach 4.
A computer-generated handout image of the 'Zero Emission Hypersonic
Transportation'
The model of an Airbus A 350 XWB on the EADS stand at Le Bourget airport near
Paris this weekend
Hailed as the heir to Concorde, the aircraft would be propelled by a mixture of
hydrogen and oxygen, meaning its only emissions would be water.
The project, developed by Airbus’s parent company EADS, was unveiled before the
official opening of the Paris Air Show today.
Carrying up to 100 passengers, a set of conventional jet engines would help
launch the aircraft from a normal airport runway, meaning the aircraft would
not produce the noisy ‘sonic boom’ that Concorde did.
Once at a suitable height, the pilot would engage a pair of rocket engines
which would propel the aircraft to much higher speeds and soar above the
atmosphere, allowing a final set of engines known as ramjets to be utilised.
Currently used in missiles, these are highly efficient at speeds above
1,000mph, but cannot work from a standing start. They will help take the plane
up to altitudes of 20 miles as it cruises at speeds beyond Mach 4. Cruising
altitude for conventional passenger jets is around six miles.
Once at cruising speed, the plane – dubbed ZEHST, for Zero Emission Hypersonic
Transportation – could fly from London to Malaga in southern Spain in just 20
minutes. A flight to Istanbul would take 30 minutes, and the plane could reach
the east coast of the U.S. In around one hour.
The plane is not expected to be operational until around 2040, according to
EADS officials
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