Dieudonné Costes | This Day in Aviation

Breguet XIX GR No. 1685, "Nungesser-Coli," right front quarter view color — Costes and Le Brix flew this Breguet XIX GR, No. 1685, named *Nungesser-Coli*, across the South Atlantic Ocean 14–15 October 1927.

14–15 October 1927: Dieudonné Costes and Joseph Le Brix flew a Breguet XIX GR, serial number 1685, across the South Atlantic Ocean from Saint-Louis, Senegal, to Port Natal, Brazil.

This was the first non-stop South Atlantic crossing by an airplane. The 2,100-mile (3,380 kilometer) flight took just over 18 hours.

The two aviators were on an around-the-world flight that began 10 October 1927 at Paris, France, and would be completed 14 April 1928, after traveling 34,418 miles (57,000 kilometers).

Costes had been a test pilot for Breguet since 1925. He served as a fighter pilot during World War I and was credited with six aerial victories. He had been appointed Commandeur Ordre national de la Légion d’honneur and awarded the Croix de Guerre with seven palms, and the Médaille militaire.

Following the around-the-world flight, the Congress of the United States, by special act, awarded him the Distinguished Flying Cross.

In 1929, the Fédération Aéronautique Internationale awarded him its Gold Air Medal, and the International League of Aviators awarded him the Harmon Trophy “for the most outstanding international achievement in the arts and/or science of aeronautics for the preceding year, with the art of flying receiving first consideration.”

Joseph Le Brix (1899–1931) — Joseph Le Brix

Capitain de Corvette Joseph Le Brix was a French naval officer. He had trained as a navigator, aerial observer and pilot. For his service in the Second Moroccan War, he was appointed to the Ordre national de la Légion d’honneur and awarded the Croix de Guerre. Like Costes, Le Brix was also awarded the Distinguished Flying Cross by the U.S. Congress.

The Breguet XIX GR (“GR” stands for Grand Raid) had been named Nungesser-Coli in honor of the two pilots who disappeared while attempting a crossing the Atlantic Ocean in the White Bird, 8 May 1927. It was developed from the Type XIX light bomber and reconnaissance airplane, which entered production in 1924. A single-engine, two-place biplane with tandem controls, it was primarily constructed of aluminum tubing, covered with sheet aluminum and fabric. The biplane was a “sesquiplane,” meaning that the lower of the two wings was significantly smaller than the upper. Approximately 2,400 Breguet XIXs were built.

Dieudonné Costes and Joseph Le Brix in their Breguet XIX, photographed in Panama, 1 january 1928, by Lt. C. Tuma, U.S. Army Air Corps. (National Air and Space Museum, Smithsonian Institution) — Dieudonné Costes and Joseph Le Brix in their Breguet XIX, photographed in Panama, 1 January 1928, by Lt. C. Tuma, U.S. Army Air Corps. (National Air and Space Museum, Smithsonian Institution)

No. 1685 was a special long-distance variant, with a 2,900–3,000 liter fuel capacity (766–792 gallons). It was further modified to add 1 meter to the standard 14.83 meter (48 feet, 7.9 inches) wingspan, and the maximum fuel load was increased to 3,500 liters (925 gallons).

The original 590 horsepower Hispano-Suiza 12Hb engine was replaced with a more powerful Hispano-Suiza 12Lb. This was a water-cooled, normally-aspirated, 31.403-liter (1,916.33-cubic-inch-displacement) overhead valve 60° V-12 engine, with 2 valves per cylinder and a compression ratio of 6.2:1. The 12Lb produced 630 horsepower at 2,000 r.p.m., burning 85 octane gasoline. The engine was 1.850 meters (6 feet, 0.8 inches) long, 0.750 meters (2 feet, 5.5 inches) wide and 1.020 meters (3 feet, 4.2 inches) high. It weighed 440 kilograms (970 pounds).

The Breguet XIX had a speed of 214 kilometers per hour (133 miles per hour). Its service ceiling was 7,200 meters (23,620 feet).

The Breguet XIX GR No. 1685, Nungesser-Coli, at le musée de l'air et de l'espace (MAE) du Bourget. — The Breguet XIX GR No. 1685, Nungesser-Coli, at le musée de l’air et de l’espace (MAE) du Bourget.

Breguet Br.19 TF Super Bidon Point d’Interrogation

1 September 1930: At 10:54 a.m., local time (09:54 G.M.T.), Dieudonné Costes and Maurice Bellonte ¹ took off from the Aéroport de Paris – Le Bourget, in a red Breguet Br.19 TF Super Bidon. Their destination was New York, non-stop across the North Atlantic Ocean. At 6:12:30 p.m., Eastern Daylight Time, 2 September (22:12:30 G.M.T.), they landed at Curtiss Field, Valley Stream, Long Island, New York. The two aviators had flown 5,913 kilometers (3,674 statute miles, 3,193 nautical miles) in a total elapsed time of 37 hours, 18 minutes, 30 seconds.

“Solid black line shows the course that Costes and Bellonte took from Paris. The broken line is the famous Lindbergh route.” (The Brooklyn Daily Times, Wednesday, 3 September 1930, Page 3, Columns 4–6)

More than 25,000 people, including Charles A. Lindbergh, were waiting at Valley Stream to welcome the two French aviators to America.

The Breguet Br.19 TF Super Bidon was named Point d’Interrogation (“Question Mark”—?), because one of the flight’s sponsors—the Coty fragrance company—was a mystery. The airplane is a single-engine, two-place sesquiplane: a biplane with the span of the lower wing substantially shorter than the upper. It was a specially-built long-distance racer which had made its first flight two years earlier, on 23 July 1928. Since then it had been modified from the original TR configuration by lengthening the fuselage, increasing the wing span and the vertical gap between the wings, and increasing the fuel capacity.

The Br.19 TF was 10.718 meters (35 feet, 1.2 inches) long, with an upper wingspan of 18.300 meters (60 feet, 0.5 inches) and lower span of 11.496 meters (37 feet, 8.6 inches). The airplane’s height was 4.080 meters (13 feet, 4.6 inches). The total wing area was 61.940 square meters (666.717 square feet). The Super Bidon had an empty weight of 2,190 kilograms (4,828 pounds) and gross weight of 6,375 kilograms (14,054 pounds).

Costes and Bellonte at Boston, 1930 (Leslie Jones Collection, Boston Public Library)

Two main fuel tanks were placed between the engine and the crew’s cockpits. The tanks’ walls made up the fuselage surface in that area. The total fuel capacity was 5,570 liters (1,471 U.S. gallons), with two additional 166 liter (44 gallon) jettisonable tanks located under the lower wing. (These were removed just prior to takeoff.) The engine was provided with 220 liters of lubricating oil.

The Br.19 TF was powered by a liquid-cooled, normally-aspirated, 36.050 liter (2,199.892-cubic-inch-displacement) Société Française Hispano-Suiza 12Nb single-overhead-cam (SOHC) 60° V-12 engine, which produced 650 cheval-vapeur (641 horsepower) at 2,100 r.p.m. The direct-drive V-12 turned a two-bladed metal propeller.

The Super Bidon has a maximum speed of 250 kilometers per hour (155 miles per hour), and range of 6,700 kilometers (4,163 statute miles).

¹ Paris, Sept 1 (U.P.)—Dieudonné Coste and the Air Ministry have disagreed over the proper way to spell the famous flyer’s name.

Not long ago the flyer said he preferred to spell his name “Coste,” dropping the final”s.” which he used until a year ago. He signed autographs without the final “s” before departing for New York. The Air Ministry insisted, however, that the official spelling is “Costes.”

Coste’s name is pronounced to rhyme with “lost,” making the final letter silent.

Bellonte’s name is pronounced “Bell-ont,” to rhyme with “jaunt.”

—The Evening Sun, Baltimore, Maryland, Vol. 41, Monday 1 Spetmber 1930, Page 1, Column 3.

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14–15 October 1927

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