[pilaf]

It looks pretty but it's so low resolution I can barely make out any words. Found a higher res version though (embedded in a PDF, page 7):

https://www.sandia.gov/app/uploads/sites/194/2022/01/GIANTS_...

It's interesting that all lines in the sketch are straight, and circles are perfect, so it seems Whitfield took a ruler and a compass on that plane.

[havaloc]

On page 12 there's an ad for the cleanroom, and one of the selling points is that it would allow cigarette smoking!

[gc9]

> ruler and compass

Or a circle template (rectangular with holes of different sizes). That would aid drawing the small circles, as well as drawing straight edges and right angles. It can be kept in a notebook like a bookmark.

[maeln]

> It's interesting that all lines in the sketch are straight, and circles are perfect, so it seems Whitfield took a ruler and a compass on that plane.

Imagine trying to board a plane with a compass nowaday :)