Reaction Engines A2 simulation flight. A firm in Oxford, United Kingdom has recently released plans for a hypersonic passenger airplane able to travel at speeds up to Mach 5 with a range of 20,000 km. Reaction Engines of Oxfordshire says the A2 plane could be in service within 25 years, carrying 300 passengers at a top speed of almost 4,000 mph, which is twice the speed of the Concorde. It would be able to reach Australia from Brussels Airport, Belgium non-stop in  five hours. It is 143 metres (469 feet) long, which is approximately twice the length of the Airbus A380 and would be the first man-made object to cruise for extended periods at such speeds within the Earth's atmosphere. Man-made aircraft have travelled this fast before; they, however, were inefficient rocket powered aircraft, that were only capable of short range.
Reaction Engines A2 simulation flight. A firm in Oxford, United Kingdom has recently released plans for a hypersonic passenger airplane able to travel at speeds up to Mach 5 with a range of 20,000 km. Reaction Engines of Oxfordshire says the A2 plane could be in service within 25 years, carrying 300 passengers at a top speed of almost 4,000 mph, which is twice the speed of the Concorde. It would be able to reach Australia from Brussels Airport, Belgium non-stop in just five hours. It is 143 meters (469 feet) long, which is approximately twice the length of the Airbus A380 and would be the first man-made object to cruise for extended periods at such speeds within the Earth's atmosphere. Man-made aircraft have travelled this fast before; they, however, were inefficient rocket powered aircraft, that were only capable of short range.
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