Inside Out Library · Explore
Some experiments on autorotation of an airfoil (1929)
NASA Technical Reports Server (NTRS) · leaf 11
Fig.I Aixioil with variable sweopbaoi. Clark Y eeotion.NASA Technical Reports Server (NTRS)
Internet Archive · NASA Technical Reports · Public domain (US government work). Free to use for anything.
More pictures from Some experiments on autorotation of an airfoil
More like this
