Today In Aviation History: First Post-WWI Speed Record Broken

On February 7, 1920, French aviator Joseph Sadi-Lecointe set the first official post–World War I world speed record, reaching 171.141 mph in a Nieuport-Delage NiD 29V. The achievement marked a turning point as aviation shifted from wartime necessity to record-breaking innovation. Beyond this milestone, Sadi-Lecointe’s career spanned combat flying, test piloting, multiple world records, and resistance activity during World War II, cementing his legacy as one of aviation’s most compelling pioneers.

Austin Hancock
Austin Hancock
Nieuport-Delage NiD.29 fighter side view. Via Wikipedia
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On this day in aviation history, 106 years ago (February 7, 1920), the first post-World War I Federation Aeronautique Internationale (FAI) world speed record was set. French pilot Joseph Sadi-Lecointe, noted for various record flight attempts and resulting records, was the aviator to accomplish this feat. While flying his Nieuport-Delage NiD 29V, Sadi-Lecointe attained a maximum airspeed of 171.141 mph while flying over the 3,280-foot-long course.

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Joseph Sadi-Lecointe in 1919. Via Wikipedia

Joseph Sadi-Lecointe was born on July 11, 1891, in Saint-Germain-sur-Bresle, France. He learned to fly at the Zenith school in Issy-les-Moulineaux in 1910. On May 3, 1911, Sadi-Lecointe was awarded French Aero Club license No. 431. During World War One, he flew for Escadrille BL.10 and later with Escadrille MS.48, flying Nieuport Scouts. Joseph would eventually become a test pilot, flying for Bleriot-SPAD while helping develop the SPAD XIII. He would later serve as a test pilot for Nieuport-Delage, which provided him access to company aircraft for his record-chasing endeavours.

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Nieuport-Delage NiD.29 C.1. Via Wikipedia

While flying various Nieuport-Delage aircraft, Sadi-Lecointe set seven airspeed records and three altitude records. He also won the 1920 Gordon Bennett race. From 1925 to 1927, Joseph returned to military service and fought in the Rif War in Morocco. He would return to his career as a test pilot after his service, and in 1936, Sadi-Lecointe was appointed Inspector General of Aviation by the French Air Ministry. During World War II, Joseph was an active member of the French Resistance. On March 21, 1944, Sadi-Lecointe was arrested by the Gestapo. He was held captive in Fresnes prison until his release two months later. Sadi-Lecointe died on July 15, 1944, from the injuries he received while being tortured in prison. Joseph Sadi-Lecointe led an interesting and inspired life as an aviation pioneer, and his story is one that deserves to be told.

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Nieuport-Delage NiD.29G floatplane modified for Grand Prix de Monaco. Via Wikipedia
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Commercial Pilot, CFI, and Museum Entrepreneur, with a subject focus on WWII Aviation. I am dedicated to building flight experience so I can fly WWII Fighters, such as the P-51 Mustang, for museums and airshows, and in the USAF Heritage Flight. I lead and run the Pennington Flight Memorial, to honor local MIA Tuskegee Airman F/O Leland “Sticky” Pennington.
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