united states

  1. Grey Havoc

    Lunar Celestial Reference System / Lunar Coordinate Time

    https://science.slashdot.org/story/24/08/15/0145200/researchers-figure-out-how-to-keep-clocks-on-the-earth-moon-in-sync https://www.theregister.com/2024/08/13/nist_lunar_orbit_clocks/
  2. bercr

    US National Archives - Hi-Res period color photos - Juno II - Vanguard - Thor Able...

    Juno II https://catalog.archives.gov/id/354890124 Vanguard https://catalog.archives.gov/id/354890116 Thor Able [URL unfurl="true"]https://catalog.archives.gov/id/354890110[/URL] Others https://catalog.archives.gov/search?availableOnline=true&page=1&q=Missile...
  3. H

    Who is the designer of the Northrop F-5?

    Was it Edgar Schmued or Welko Gasich/Lee Begin that designed the F-5 or not?
  4. D

    Republic Aviation Recoverable Booster Airplane proposal for SR-181 'Strategic Orbital System'

    from ARDC TR-59-64 Advanced Concepts Study, Final Report. from USAF FOIA reading room. (edit: PDF split & now attached) A JT11-7A powered Booster Airplane launches a rocket vehicle & satellite payload with two solid fuelled stages and a storable liquid propellant third and fourth stages...
  5. Forest Green

    Cannon Based Air Defence

    View: https://x.com/AirPowerNEW1/status/1816784858573664586 https://www.northropgrumman.com/what-we-do/advanced-weapons/cannon-based-air-defense Appears to be using XM913, 50mmx228mm
  6. Forest Green

    US Secret Service looking for new Sniper Rifles

    https://www.twz.com/land/secret-service-wants-new-sniper-rifles
  7. flateric

    McDonnell Aircraft Model 73

    ...
  8. flateric

    McDonnell Aircraft Model 80

    found at Worthpoint
  9. flateric

    McDonnell Aircraft Model 65

    found at Worthpoint
  10. D

    McDonnell 1991 Manned Mach 4.6-5 Notional Hypersonic Cruise Aircraft - JP7 fueled

    from: available to read through JSTOR
  11. bercr

    Famous American Aircraft: Grumman EA-6B Prowler - An Operational History - Rick Morgan - Crecy

    https://www.crecy.co.uk/grumman-ea-6b-prowler?osCsid=cvsjridl1tau9tn0uk4873hkm4
  12. A Tentative Fleet Plan

    Early 1950s Plans for Defensively Equipped Merchant Ships

    Stumbled across some early 1950s NATO documents concerning the defensive arming and equipping of Merchant Ships. SGS.1 and the 4" Mk 25 are briefly mentioned, although unsurprisingly the vast majority of equipment intended for DEMS was supposed to come from US stocks. There are more documents...
  13. SpaceMonk

    NACA Langley’s Mach 18 Low Lift/Drag Glider - Becker’s Winged Satellite

    The successor to the X-15 was - a winged satellite? In the mid-1950s, NACA was pushing the boundaries of hypersonic flight. After the X-15, the Air Force's Project HYWARDS aimed to design a Mach 12 successor. Visionary engineer John Becker at NACA Langley proposed an even more ambitious goal: a...
  14. A

    American Experimental Fighters of WWII by Tony Buttler

    American Experimental Fighters of WWII The Pursuit of Excellence Author: Tony Buttler https://www.crecy.co.uk/american-experimental-fighters-of-wwii
  15. HyFonic

    DARPA / Northrop Grumman XRQ-73 Series Hybrid Electric Propulsion AiRcraft Demonstration (SHEPARD)

    Always a good day when there's a new X-plane. https://www.darpa.mil/news-events/2024-06-24
  16. Grey Havoc

    Planetary Defense Interagency Tabletop Exercise

    https://thehill.com/homenews/space/4734140-nasa-simulates-asteroid-heading-toward-earth-in-defense-exercise/
  17. uk 75

    US cruisers after 1991

    The US Navy in the 1980s deployed an impressive range of non-AEGIS cruisers. Long Beach was the largest and oldest of the nuclear ships and the only one to start life as a cruiser. The remainder started as frigates then became DLGNs. Bainbridge and Truxtun were one-offs followed in the 70s by 2...
  18. fightingirish

    RIP Donald Sutherland 1935 - 2024

    The Canadian actor Donald Sutherland has passed away. May he rest in peace. :( Here a few of my favourite movies with him as an actor: The Dirty Dozen (1967) M*A*S*H (1970) The Eagle has Landed (1976) Eye of the Needle (1981) JFK (1991) Space Cowboys (2000) Sources...
  19. Grey Havoc

    First Black Navy SEAL, William Goines, dies at 88 (Military Times)

    https://www.militarytimes.com/news/your-military/2024/06/19/first-black-navy-seal-william-goines-dies-at-88/ Rest In Peace. :(
  20. A

    Short Skyvan projects

    I am currently writing a book on the Short Skyvan. I wonder if anyone has information (description, drawings etc) on Shorts project P.D.50 described as a "Skyvan VTOL test-bed", and P.D.62 listed in the Putnam as "Skyvan with B.L.C" but elsewhere as "Skyvan Feeder Liner". Both seem quite...
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