Barograph from the Spirit of St. Louis

This barograph provided a accurate record of the airplane's altitude and flight duration, as required for competitive flights.

Barograph from the Spirit of St. Louis

This barograph provided an accurate record of the airplane’s altitude and flight duration. The Fédération Aéronautique Internationale regulations required a barograph tracing on all competitive flights.

Recorded on the drum were Lindbergh’s takeoff and climb, his ascents to various altitudes in search of favorable winds, his attempts to rise over storms and fog banks, his sudden drops because of turbulent air, his partial descent near Ireland, his flight over Europe, and his landing in Paris.

Credit: National Air and Space Museum, Smithsonian Institution

Date: 2001

Photo Number: SI 2001-4155

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Barograph from the Spirit of St. Louis

Barograph from the Spirit of St. Louis