Ryan NYP Port Wing Underside and Forward Fuselage Geometry (May 1927)

Angled low-perspective photograph showing the underside of the Spirit of St. Louis left wing and engine cowl. — Ryan NYP Port Wing Underside and Forward Fuselage Geometry (May 1927) · Donald A. Hall Estate Collection

An archival flightline negative detailing the port underside of the Ryan NYP at Dutch Flats. The perspective frames the lower wing surface with bold registration lettering, the hand-turned damascened nose cowl, exhaust stacks, cockpit window, and landing gear wheels resting on the cracked mud apron. The image provides detailed photographic evidence of the aerodynamic and fabric finish executed by the Ryan Airlines shop under Donald Hall's supervision.