Spirit of St. Louis

• 1. Origins And Design

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  Charles Lindbergh arrived in San Diego on the 23rd of February 1927. He walked into the Ryan Airlines factory to meet Benjamin Franklin Mahoney and Donald Hall. The goal was to build a custom aircraft capable of crossing the Atlantic Ocean without stopping. Lindbergh wired a message asking if they could construct a Whirlwind engine plane for such a flight. Mahoney replied that delivery would take about three months. Lindbergh insisted on completion within two months due to competition for the Orteig Prize. The team worked exclusively on this project for exactly sixty days. They used the company's 1926 Ryan M-2 mailplane as a loose base for their design. The government assigned the registration number N-X-211 because it was an experimental model. Hall documented his engineering choices in a report prepared for the National Advisory Committee for Aeronautics. Lindbergh contributed $2,000 from his earnings as a U.S. Air Mail pilot. The rest of the funding came from the Spirit of St. Louis Organization. Mahoney agreed to build the plane for $10,580 with no profit margin. Hawley Bowlus served as the factory manager who oversaw the construction process.

• 2. Engineering Compromises

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  The cockpit measured only four feet six inches in width and height. It was so small that Lindbergh could not stretch his legs during the nearly forty-hour journey. He sat in a stiff wicker seat custom-fitted to his tall frame. The main fuel tank and forward tank were placed directly in front of him. This arrangement improved the center of gravity but eliminated any front windshield. Forward visibility relied entirely on side windows and a periscope installed by a former submarine service employee. The engine was a Wright J-5C Whirlwind radial unit rated for 9,000 hours of operation. Tom Rutledge built this engine at Wright Aeronautical in Paterson, New Jersey. The aircraft carried 425 gallons of gasoline stored across five separate tanks. Hall decided not to alter the empennage or wing control surfaces from the original M-2 design. This decision resulted in a negatively stable airframe that introduced random pitch and yaw movements. These unanticipated shifts helped keep Lindbergh awake throughout the long flight. He removed the top and bottom off his flight map to save weight. No radio equipment was installed because the units of that era were unreliable. The fuselage consisted of treated fabric over a metal tube frame while wings used wood frames covered in fabric.

• 3. The Transatlantic Flight

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  Lindbergh took off from Roosevelt Airfield in Garden City, New York, on the 20th of May 1927. He landed thirty-three hours and thirty minutes later at Aéroport Le Bourget in Paris. The distance covered was approximately 3,600 miles through the Atlantic Ocean. His arrival deviated from the planned route by just a few miles near Ireland. The flight made him an instant celebrity and media star worldwide. President Calvin Coolidge sent the light cruiser to bring them back to the United States. Lindbergh arrived on June 11 and received the Distinguished Flying Cross from the President. The U.S. Post Office issued a commemorative ten-cent stamp depicting the aircraft over a flight map. It was the first stamp issued bearing the name of a living person. Lindbergh subsequently flew the Spirit to Belgium and England before returning home. During a three-month tour across the United States, he allowed Major Thomas Lamphier and Lieutenant Philip R. Love to pilot the plane for ten minutes each. These two men are apparently the only individuals other than Lindbergh who ever piloted this specific aircraft.

• 4. Post-Flight Legacy

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  One year and two days after their first flight at Dutch Flats, Lindbergh flew the Spirit to Bolling Field in Washington, D.C. on the 30th of April 1928. He presented the aircraft to the Smithsonian Institution that same day. For more than eight decades it has hung in display within the museum complex. From 1928 until 1976 it hung in the Arts and Industries Building. Since 1976 it has been suspended in the atrium of the National Air and Space Museum alongside the Bell X-1 and SpaceShipOne. At retirement, the Spirit had made 174 flights totaling 489 hours and 28 minutes in the air. The gold color of the aluminum nose panels is an artifact of early conservation efforts. Conservators applied a clear layer of varnish or shellac to preserve artwork painted on the engine cowling. This protective coating yellowed with age resulting in the golden hue seen today. Smithsonian officials decided to keep the golden hue as part of the aircraft's natural state after acquisition. In 2015 the aircraft was lowered to the floor of the Milestones gallery for closer inspection.

• 5. Conservation Challenges

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  The tires were temporarily replaced with forklift style units in 2015 to preserve the original rubber. Age and lessening vulcanization meant the original tires could not sustain the aircraft weight without disintegration. Conservation work was likely undertaken on the wheel assembly itself during this period. The fuselage fabric and metal tube frame have aged significantly over nearly a century. The gold-colored nose panels remain covered by the yellowed varnish applied decades ago. Officials at the museum plan to maintain artifacts in the state they acquired them rather than altering their appearance. The interior of the original propeller spinner contains a small left-facing Indian-style swastika painted there for good luck. Names of all Ryan Aircraft employees including Dapper Dan appear inside that same spinner. A replacement spinner was hastily made in New York when the original cracked before the flight. That replacement unit remained on the aircraft during the transatlantic crossing. Modern restoration techniques focus on stabilizing materials rather than returning the plane to its 1927 condition.

• 6. Reproductions And Replicas

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  An exact duplicate named NYP-2 was built forty-five days after the transatlantic flight for the Japanese newspaper Mainichi. This replica achieved record-breaking flights early in 1928 before a crash ended its career. Three reproductions from the Warner Bros film The Spirit of St Louis survived into modern times. B-153 is displayed at the Missouri History Museum while B-156 belongs to The Henry Ford museum. B-159 resides at the Cradle of Aviation Museum located in Garden City, Long Island. James Stewart owned one copy and donated it to the museum though Lindbergh never flew any reproduction. Frank Tallman built a new reproduction named Spirit 2 which first flew on the 24th of April 1967. It appeared at the 1967 Paris Air Show making several flights over the city. Spirit 2 was destroyed by arson in 1978 so the museum built a replacement called Spirit 3. The Experimental Aircraft Association produced two airworthy copies powered by Continental R-670 engines. One example was flown by Paul Poberezny to commemorate the fiftieth anniversary of the crossing. A second reproduction started from scratch in 1977 continues to fly at air shows today.