It should start at 20:04 https://youtu.be/OU7Y0y0Lg6k?t=1204 It talks about this article showing the US Navy patents for essentially the TR-3B.  https://metro.co.uk/2019/04/18/us-navy-secretly-designed-super-fast-futuristic-aircraft-resembling-ufo-documents-reveal-9246755/ https://www.matrixdisclosure.com/tr-3b-black-triangle/