Inside Out Library · ExploreThe Formation of Ice upon Exposed Parts of an Airplane in Flight (1928)NASA Technical Reports Server (NTRS) · leaf 11N.A.C.A. Technical Note No.393 Figs.1,3,4 Fig.l … Fig.3 i Fig.4NASA Technical Reports Server (NTRS)Internet Archive · NASA Technical Reports · Public domain (US government work). Free to use for anything.More pictures from The Formation of Ice upon Exposed Parts of an Airplane in FlightMore like this
