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A comment on SpaceshipTwo crashes shortly after Mojave test flight. Parent comment

Re:SpaceshipTwo crashes shortly after Mojave test flight by termain on Friday October 31, 2014 @06:42PM (#8541458)
I think they're a little newer than that, but that's a good point. Still, I'm not sure either engine was inadequately qualified.

I'm not sure what constitutes adequate qualification, though. Both engines were ground tested at least some. And in Virgin's case, this flight was one of tests.

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Re:SpaceshipTwo crashes shortly after Mojave test flight by ceejayoz on Friday October 31, 2014 @07:03PM (#8541531)
> I think they're a little newer than that, but that's a good point.

http://en.wikipedia.org/wiki/NK-33 says the AJ-26 engines are from the 1960s and 1970s.

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