Military disc-shaped aircraft development dates back to before World War II. A number of disc-shaped aircraft have been proposed over the years, and a few have been built.
Read more about Military Disc-shaped Aircraft: Nemeth Umbrella Plane, Sack AS.6, Vought Flying Flapjack, Avrocar, Other, Books
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“Nothing changes my twenty-six years in the military. I continue to love it and everything it stands for and everything I was able to accomplish in it. To put up a wall against the military because of one regulation would be doing the same thing that the regulation does in terms of negating people.”
—Margarethe Cammermeyer (b. 1942)