I have been reading The Hunt for Zero Point by Nick Cook and I am more convinced than ever that The Skunk Works have used technology from the Nazi secret project Die Glocke (The Bell) during WWII to power the new project Aurora spy plane.
Read more about my views on German technology in an interview I did on this website.
The extraordinary Die Glocke is reputed to have used anti-gravity technology, though it is likely to have caused many deaths, directly, and indirectly when the SS murdered all the scientists working on the project.
I just saw this (16 April 2020) very interesting article on the TR-3B today on military.com and thought I would add it.
Read much more about Die Glocke (the Nazi Bell) which may have used the prototype technology for Project Aurora, in the Orange stream of my book series The Hole Inside the Earth (thanks to Igor Witkowski, Die Glocke researcher, for helping me to get the details right).
If you are interested in secret aviation technology, you might like my novel December Radio (see below).
December Radio reveals details about the secret WWII German project to build a nuclear bomb and also features details of Eugen Sanger’s Orbital Bomber, sometimes called the Amerika Bomber, which could skip along the Earth’s atmosphere to reach New York with that nuclear bomb, making it the forerunner of the American Space Shuttle.