Donald A. Hall Estate Collection
Ryan NYP Low-Altitude Heavy Load Flight Trial at Camp Kearny (May 4, 1927)

An archival engineering photograph documenting the Spirit of St. Louis airborne during flight testing at Camp Kearny, San Diego. Captured flying in ground effect just above the unpaved surface, the image records Donald Hall and Charles Lindbergh conducting speed and takeoff distance trials across the open military field, selected because its extended run allowed safe testing of high-overload fuel weights that could not be operated from Dutch Flats.