Chromoly Steel Landing Gear Axle (1927)

A standalone view of a heavy-duty, V-shaped steel axle and swing arm assembly designed for the Spirit of St. Louis landing gear. — Chromoly Steel Landing Gear Axle (1927) · Donald A. Hall Estate Collection

A testament to the aircraft's extreme weight requirements. Donald A. Hall Sr. engineered these specific landing gear axles out of high-strength chromoly steel. Standard components would have buckled under the immense weight of the fuel required for Lindbergh's flight to Paris.