SR-72: US secret hypersonic jet to allegedly break sound barrier in 2025
interestingengineering.com
Widely reported as the fastest plane ever developed, Lockheed Martin's SR-72 "Son of Blackbird" will test the claim sometime in 2025.

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…::undefined

  • LilDumpy@lemmy.worldEnglish
    172·
    11 months ago

    Why does it take one year for this plane to warm up before it breaks the sound barrier? Aren’t there planes that already break the sound barrier in minutes/seconds and not take years?

    • CaptainSpaceman@lemmy.worldEnglish
      11·
      11 months ago

      The speed of sound is roughly 750mph

      This plane goes 4000mph. Thats like Mach 6 right?

      Edit: looks like SR71 still holds the record for now at Mach 3.5 or around 2000mph

      • grue@lemmy.worldEnglish
        8·
        11 months ago

        Edit: looks like SR71 still holds the record for now

        The unclassified record, sure.

          • grue@lemmy.worldEnglish
            2·
            11 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.

    • Tylerdurdon@lemmy.worldEnglish
      10·
      11 months ago

      I think the speed is more in regard to the capability to go into space. From what I remember, the SR71 was easily fast enough to go, but the limit was atmosphere (engines). If they could get something into space that could come back as a single unit (needing just a refuel), it could change a lot. Total speculation though, it’s probably just super fast so it can go destroy other humans super good, because that’s super important.

    • Person264@lemmings.worldEnglish
      3·
      11 months ago

      They’ll test it on the ground and flying slowly first before going fast to make sure it’s safe enough.