Together with his brother Frans, he tried to solve the riddle of the perpetual motion machine. The device consisted of a one-meter-high wheel that, with the help of springs and lead weights, would be kept in motion by its own power. Today, the machine is preserved in the local history society's Hamnmagasin in Lyrestad. In 1914, he began his attempts to construct an airplane that, even if the engine failed, could slowly descend to the ground with the help of a carrier plane equipped with large rotor blades. In 1925, he was granted patents for his design in Sweden, the United States, the United Kingdom, Canada, France, Finland and Denmark. The whole design resembled an autogyro. Financially, Jette lacked the means to build his aircraft, but with the help of the art historian Sixten Rönnow and the jack-of-all-trades Carl August Berglund, Svenska Aktiebolaget Turbinplan was founded in 1931 to arrange financing for the manufacture of Jette's design. Large parts of the aircraft were built at Kvarnmaskiner C.W. Sundén in Lindesberg and it was completed in the spring of 1933. The pilot Anders Werner Nordwaeger (Grundin) (1905 - 1969) from the air corps in Västerås was hired as a test pilot. At the flight test in Lindesberg on August 15, 1933, the aircraft could not take off because the engine was too small for the aircraft's 1500-kilogram body.