Inside Out Library · Explore
The electrodynamometric balance of the small wind tunnel of the French Service of Aeronautical Research (1930)
NASA Technical Reports Server (NTRS) · leaf 15
N.A.C.A. Technical Memorandum No.55c Figs.11,12 & 13NASA Technical Reports Server (NTRS)
Internet Archive · NASA Technical Reports · Public domain (US government work). Free to use for anything.
More pictures from The electrodynamometric balance of the small wind tunnel of the French Service of Aeronautical Research
More like this