The Snapshots in Time Collection
Archival Caption Card - Bell L-39 Swept-Wing Research Aircraft (Based on P-63)
This caption card identifies the Bell L-39, an experimental swept-wing aircraft built from modified P-63 Kingcobra airframes in the late 1940s. Developed with NACA, the L-39 helped researchers study swept-wing aerodynamics, contributing to the design of early American jet fighters such as the F-86 Sabre. Project: 218475