Its very similar to the Schriever plans that I had found years ago the germans had a number of plans and prototype crafts.
I know at the end of WW2 there was a mad dash for many countries to explore the feasibility of saucer crafts.
I’m sure that I have seen this b4 ……when I read silver bug my brain recognized it as a saucer craft.
I posted a link to a fantastic ufo book I makes one rethink the possibilities of human intelligence and how much one brilliant mind could forever change our world.
If you are even remotely interested man made saucer crafts this book series MUST be read.