1953 NACA 1135 Report

Interested in figuring out the main serif font (body text/equations) and the sans-serif font (charts at end of document).



That's probably dorkmeister Computer Modern.


I agree its similar, but Computer Modern wasn't released until the 1980's. This document was published in 1953. What about the sans-serif?

Computer Modern is based on Monotype Modern No 8, but much more lifeless and mechanical. The font used in that NASA document is clearly close to Monotype Modern No 8, but could also be another Monotype Modern variant (many of them were very close).