Henri Mignet

Later in describing this aircraft he said, "All the components worked, but not together..."[3] 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.

[3] 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 1934, he published Le Sport de l'Air and playfully called the aircraft Pou du Ciel (literally "Louse of the Sky" in French) with the intention that it would be built by amateurs.

[4] In 1936, after a number of fatal accidents, the HM.14 was tested in wind tunnels in France and in England, and a design fault was identified and corrected.

The fatal accidents due to the initial, flawed, design meant that professional aircraft manufacturers were very reluctant to produce versions of the Pou.

[4] Mignet encouraged amateur-builders to construct the HM.14, but he also carried on designing further models into the 1960s, all of them based on the Flying Flea concept.