Instrument Panel and Fuel Distribution System (1927)

A straight-on view of the Spirit of St. Louis instrument panel, prominently featuring the intricate array of fuel distribution valves located at the bottom. — Instrument Panel and Fuel Distribution System (1927) · Donald A. Hall Estate Collection

A crucial engineering record from 1927. This photograph of the Spirit of St. Louis instrument panel highlights the intricate fuel distribution valves engineered by Donald A. Hall Sr. This system allowed Lindbergh to manually pump fuel between tanks to manage the center of gravity, and ensured gravity-fed flow to the engine if the main pump failed.