I am not looking for unreadable images or pictures of images, but a fully legible copy or print.

I have found a reference to a set of drawings at UNLV however no contact info nor a department to contact

  • $\begingroup$ Could the Smithsonian keep something like this? $\endgroup$
    – user7241
    Dec 25, 2017 at 21:44
  • $\begingroup$ I would think so but no. Also I would think there would be copies in the library of congress since they investigated it but no on that as well $\endgroup$
    – Jim
    Dec 25, 2017 at 22:36
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    $\begingroup$ I would contact the Evergreen Air and Space Museum in McMinville, OR. They currently have the actual H-4 prototype and their curators may be able to help. $\endgroup$ Apr 16, 2019 at 14:13
  • $\begingroup$ According to Wikipedia the aircraft division was sold to Raytheon. Maybe they have retained the original blue prints of the aircrafts... $\endgroup$
    – sophit
    Nov 30, 2022 at 13:13

1 Answer 1


Contact the Evergreen Aviation & Space Museum and speak with a Docent. https://goo.gl/maps/EDfpig8RVzSj85U28

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    $\begingroup$ Wonder if the Hughes H-4 in Microsoft Flight Simulator was modeled based on original drawings, or just ad-hoc measurements, photos and LIDAR scans of the preserved aircraft. $\endgroup$
    – tml
    Nov 30, 2022 at 13:54

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