Quote:
Originally posted by sleemanj
It seems to me this would be a very expensive way to fly...
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I have to agree. I think the idea is that they're testing the design of the airframe at hypersonic speed, and this is a cheap way to get there without actually having a working scramjet or aerospike rocket.
US companies are doing the heavy lifting in that research right now....to the extent that they're still getting government money.