Inside Out Library · ExploreThe effect of bow stiffeners in nonrigid airships (1923)NASA Technical Reports Server (NTRS) · leaf 8Fig. 2 … Rad. Max. diam. Fig.2NASA Technical Reports Server (NTRS)Internet Archive · NASA Technical Reports · Public domain (US government work). Free to use for anything.More pictures from The effect of bow stiffeners in nonrigid airshipsMore like this