united states

  1. E

    The Tradewind magazine, February 1930 - Wright Aircraft Engines

  2. Grey Havoc

    U.S. Army Armored Gun System program (early 1980s)

  3. hesham

    USA Rescue & Utility Helicopter Competition of 1945

    From The Spangenberg Index, could be the US Navy was responsible about that contest,it was about Rescue and Utility Helicopter,and the tenders were; - United Helicopters (Hiller) L-3 - Kellett - Higgins H-3 - McDonnell H-3 - Fleetwing Model-52 - Sikorsky For McDonnell,it was Model-42,about...
  4. H

    Red Aviation A03 V12 diesel engine

    I came across this engine, which is used in the Celera 500L, but is also offered for other applications (I've seen a DHC Beaver and a crop duster): It's a 6.1 l V12, twin turbo diesel engine. Rated at 550 or 600 shp. View: https://www.youtube.com/watch?v=y2WZJJ5IzMU
  5. Dynoman

    Goddard's Experimental Rocket Plane of 1930 and the US Pre-War Rocket Revolution

    This is an alternative history of Goddard's historical liquid rocket launch of 1926 and the succeeding development of a fictional experimental rocket airplane based on Goddard's designs. The advent of the design and its governmental support ultimately leads to a change in the course of the US...
  6. Z

    McDonnell Douglas Mark II Batwing

    I recently visited the United States Army Aviation Museum at Fort Rucker, AL, and I came across the McDonnell Douglas Mark II Batwing. I haven't been able to find any information on this aircraft other than what was on the Museum's sign, and the only evidence of its existence on the internet is...
  7. Grey Havoc

    The Maine lake full of sunken steamboats (BBC)

  8. _Del_

    Ejection seat lawsuit

    https://www.airforcetimes.com/news/your-air-force/2022/09/13/an-f-16-pilot-died-when-his-ejection-seat-failed-was-it-counterfeit/ Lovely.
  9. P

    Kysor Frustrated Widow (aka Torpedo Plane)

    Registered as N22C in 1949 and cancelled in 1955. has anybody got any info?
  10. isayyo2

    American Response to the R-36 - Titan II Successor

    A more theoretical question than alternative history, was there any interest within SAC to develop a "Heavy" ICBM to match the R-36's capabilities? If so, could it fit within the existing Titan II launch sites? Titan II and R-36 are somewhat surprisingly similar in diameter and height, though...
  11. E

    Micron Unveils Plans For $15 Billion Chip Manufacturing Plant In Idaho

    First Ohio, and now this. Don't they realize that Idaho is known for growing potatoes? :) https://www.thestreet.com/markets/micron-unveils-plans-for-15-billion-chip-manufacturing-plant-in-idaho
  12. uk 75

    NATO Tactical Nuclear Forces

    In the late 1950s the US deployed a bewildering range of tactical nuclear weapons in Western Europe. The US Army had its spectacular 280mm atomic cannon mounted between two trucks. It then had smaller 8" warheads for the M115 howitzer which were made available to the UK and other NATO allies...
  13. overscan (PaulMM)

    Research in NASA history - a guide to the NASA history program

    https://history.nasa.gov/sp4543.pdf This document published in 2009 contains a summary of published books about NASA history and also a guide to the collections and archives found at various NASA locations. Looks potentially useful for researchers.
  14. klem

    Gibson Motor Vehicle 1915.

    Long before the Welbike, the American inventor Arthur Hugo Cecil Gibson in 1915 during the First World War, offered his motor vehicle to the American army. A 22.5 kg combat scooter that can carry a load of 136 kg at a speed of 40 km/h but was not accepted however it did not differ so much from...
  15. J

    Brewster projects

    Hai Except some drawings concerning the P-33 projects, I did not find any information concerning other Brewster projects. The only which I earlier mentioned was the two-seat fighter, further no details etc. Is there any material/information concerning this two-seat fighter and other not...
  16. Hydroxideblue

    Mobile Protected Weapon System (MPWS) / Mobile Protected Gun System (MPGS) Piranha - 75mm XM274 MCAAC on GM Canada Piranha 8x8

    Hey everyone! I was wondering what sort of information people had on the MPWS/MPGS Piranha. This was an early 1980s submission by General Motors of Canada into the USMC MPWS, and later joint Army-Marine MPGS program. I possess LETE Annual Historical Reports covering its trials at the LETE...
  17. Dynoman

    GodsEye: Wide Area Surveillance- America

    A few years ago a project was launched to fly stratospheric balloons over various mid-western US states to test wide area surveillance systems and balloon station keeping technologies. This project was directed at drug traffic interdiction, counter-terrorism, and military applications. Its not...
  18. GTX

    Royal Australian Navy Extra Large Autonomous Undersea Vehicles (XL-AUVs)

  19. TomS

    Obscure USN Frigate concepts and studies

    Digging through some old files, I came across a NAVSEA briefing from 1994 comparing a variety of frigate designs (both US and foreign). The purpose appears to have been a review the "state of the possible" for frigates in this timeframe, possibly with the intention to inform USN decisionmakers...
  20. A

    The Convair Model 200 / 201 /218 TL

    We have a whole bunch of threads, alt-history or not. But no full blown TL so far. The POD: May 1972, common sense prevails: Convair Model 200 carries the day over Rockwell NAR-356. It becomes the XFV-12 interceptor for Zumwalt Sea Control Ship. Even after that one is canned, two prototypes are...
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