Inside Out Library · Explore

Counter-propeller (1931)

NASA Technical Reports Server (NTRS) · leaf 14

An illustration from Counter-propeller, 1931, leaf 14
N.A.O.A. Technical Memorp.nd.um Ho.587 Figs. 3,A … V" Fig.4

NASA Technical Reports Server (NTRS)

Internet Archive · NASA Technical Reports · Public domain (US government work). Free to use for anything.

More pictures from Counter-propeller

More like this