Frank Whittle: The FULL Story.
The complete rare interviews that were recently digitized from 16mm film.
https://youtu.be/WSJdyUGlE7w?si=D36NKPOIEaNFcGSv
A very interesting, never seen before interview with German engineer Hans Von Ohain, and his take on the invention of the turbojet. Part 2:
https://youtu.be/1_MwK40drvM
If one nation managed to get their hands on another maintenance manuals detailing an engine, but not an engineering blue print for production, what was the threat of reverse engineering a copy of that engine from just those manuals?