"The $A369.11 million project is purely experimental. Engineers will collect flight data needed to build future planes perhaps 60.96 metres in length. The first piloted prototypes may fly by 2025.posted by yarf at 5:46 AM on April 19, 2001
Backers of the technology say air-breathing hypersonic propulsion could help space travel. The X-43A, or Hyper-X, will probably never carry commercial passengers because of the high acceleration, heat generated by friction with the atmosphere and the difficulty of turning a plane at such high speeds."
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Anyway, I'm betting there'd be at least a hundred conspiracy theories talking about this plan, area 51 and alien abductions by end of week.
posted by tiaka at 4:56 AM on April 19, 2001