Donald A. Hall Estate Collection

Ryan NYP Ground Leveling and Aerodynamic Stance Evaluation (1927)

An archival flight-line photograph capturing the Spirit of St. Louis from a three-quarter front angle during pre-flight calibration at Dutch Flats. The elevated tail alignment, engine-turned damascened nose cowl, and streamlined landing gear fairings are clearly visible against the San Diego horizon, documenting Hall's pre-flight testing program.