The Snapshots in Time Collection
Caption Card: Bell L-39 Swept-Wing Research Aircraft (P-63 Kingcobra Derivative)
This caption card identifies the Bell L-39, an experimental swept-wing variant of the P-63 Kingcobra fighter. Built by Bell Aircraft in the mid-1940s, the L-39 was used to study swept-wing aerodynamics, research that directly informed the design of America's first swept-wing jet fighters. Project: 218215