Inside Out Library · ExploreRelation of "Lilienthal effect" to dynamic soaring flight (1925)NASA Technical Reports Server (NTRS) · leaf 18Figs ^7,8&9- … Fig.8 a^_^2 cos X "b=v 2 sin P' J rp c=^C v|cos p' - CO. r v2 sin ^• y T Fig.9NASA Technical Reports Server (NTRS)Internet Archive · NASA Technical Reports · Public domain (US government work). Free to use for anything.More pictures from Relation of "Lilienthal effect" to dynamic soaring flightMore like this