Comment on SR-72: US secret hypersonic jet to allegedly break sound barrier in 2025 | Believed to be a top-secret project of the US Air Force, the SR-72 is touted to reach over 4,000 mph (6,437 kph), making i...
Edit: looks like SR71 still holds the record for now
The unclassified record, sure.
Can you explain what youre referring to?
I don’t believe for a second that the Air Force hasn’t built something faster than the SR-71 in forty years, but I do believe they wouldn’t have told us about it.
CaptainSpaceman@lemmy.world 10 months ago
Can you explain what youre referring to?
grue@lemmy.world 10 months ago
I don’t believe for a second that the Air Force hasn’t built something faster than the SR-71 in forty years, but I do believe they wouldn’t have told us about it.