Development
The vehicle is intended to have about 12,430 miles (20,000 km) range and good subsonic and supersonic fuel efficiency, thus avoiding the problems inherent in earlier supersonic aircraft. The top speed is projected to be Mach 5+. It calls for the use of liquid hydrogen as a fuel, which has twice the specific impulse of kerosene, and can be used to cool the vehicle and the air entering the engines via a precooler.
| “ | Our work shows that it is possible technically; now it's up to the world to decide if it wants it. | ” |
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— Alan Bond, managing director of Reaction Engines Limited |
The developers say it would be able to fly from Brussels to Sydney in about 4.6 hours, compared to around a complete day of travel with normal aircraft. The cost of a ticket is intended to be roughly business class level.
Read more about this topic: Reaction Engines A2
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