Historical and Reference Notes
As you delve into this project, you should really become familiar with the basic U-2 story from its origins in 1953 all the way to its usage in 2025 – that’s over 72 years.
I recommend Wikipedia’s history, which I warn you, is extensive: https://en.wikipedia.org/wiki/Lockheed_U-2
US Air Force: https://www.af.mil/About-Us/Fact-Sheets/Display/Article/104560/u-2stu-2s/
Several terrific YouTube videos (each of contain U-2S a/c):