On floats and float tests
A 1931 technical report from NASA's Technical Reports Server, issued as a research memorandum on seaplane floats and float tests. The record gives no further detail on its audience, so it reads as an engineering paper for aircraft designers. The four charts plot float moments, resistance and load against angle of attack and speed, with curved and dashed lines drawn over gridded axes in black and white. A designer might borrow the clean graph-paper layout, the labelled dashed and solid line legends, and the stepped scale annotations.
