re: About that X-43 being the 'first' air-breather to reach Mach-10.
I'm am curious if Aurora really exists. If so it would have had to be kept secret for like 20 years.
Bob Clark
Space/Science » in reply to About that X-43 being the 'first' air-breather to reach Mach-10.
I'm am curious if Aurora really exists. If so it would have had to be kept secret for like 20 years.
Bob Clark