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Henri Mignet


Henri Mignet, (October 19, 1893 – August 31, 1965), was a French radio engineer who became well known as an aircraft designer and builder. His most famous design is the Flying Flea family of aircraft.

Mignet was born in Charente-Maritime. In 1911, when he was 18 years old, he started corresponding with Gustav Lilienthal (the brother of Otto Lilienthal) about aviation. In 1912, he built his first aircraft, the HM.1-1 model. It was a monoplane inspired by the creations of Otto Lilienthal.

Between 1914 and 1918, Mignet served in the French army. He was a radio operator during World War I. In 1918, he was hospitalized with malaria.

In 1920, Mignet finished his first powered aircraft prototype, the HM.2. This bore many similarities to, and took inspiration from, the designs of Louis Blériot Later in describing this aircraft he said, "All the components worked, but not together..."

In 1922, he constructed the HM.3 "The Dromedary", the HM.4 parasol, and airplane with no rudder and an Anzani 10 CV engine, and the HM.5, a sailplane. In 1924, he sold the HM.5 sailplane for a large sum of money.

In 1925, he was forced to start raising chickens to finance the development of his HM.6 project, a pusher propeller aircraft, and a helicopter, designated the HM.7.

In 1926, Mignet married Annette Triou.

In March 1928, Mignet wrote an article in the magazine Les Ailes ("Wings" in English), describing his HM.8 Avionnette. It was a parasol monoplane that he built in 1928 using parts from his HM.6, including a modified 10 hp Anzani engine. In 1929, the first amateur-built HM.8s made their maiden flights. In 1931, he published a book, Comment j'ai Construit mon Avionnette (How I built my Avionnette), containing the plans for the HM.8. Mignet encouraged amateurs to build HM.8s while he continued his research towards a new concept that became the "Pou du Ciel". About 200 HM.8s were built, with various engines, including 17 hp (13 kW) 540 cc Aubier et Dunne, 500 cc Chaise, 24 hp Harley-Davidson, 35 hp ABC Scorpion, 40 hp Salmson. Some of those directly drove the propeller, others employed a chain drive.


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