August Heinrich Euler* was born in Oelde in Westphalia on
November 20th, 1868. He started a graphics education, but didn't
finish it and instead studied mathematics, philosophy and commercial
law on his own. He was a keen sportsman all through his life, racing
bicycles and later on cars and practising many other sports. In 1883,
after the end of his three-year military service he started working as
a technical tradesman, travelling to many towns in Germany and abroad.
From 1898 to 1904 he worked in the automobile industry in Frankfurt and
Dresden. In 1904 he started his own business as agent and wholesale
dealer of automobile equipment for the industry, cooperating with Bosch
and several other big manufacturers.
It was natural that an entrepreneur like Euler should become interested in the emerging aviation industry. In October 1908 he founded the Euler-Werke in Frankfurt and managed to negotiate a license agreement with the Voisin brothers. He leased a part of the Griesheim exercise field outside Darmstadt, where he built an airfield and factory in early 1909 and made his first flights. The first few machines built were similar to Voisins, but Euler was not pleased with the original design and soon started to modify the construction, for example by lightening it, redesigning the landing gear and introducing ailerons.
Euler's first public flights were performed at the ILA exhibition at Frankfurt and he participated in the 1909 Frankfurt meeting. He started a flying school in Griesheim, where more than 40 pilots were trained without major accidents and several flying displays were arranged. On October 25th, 1910 he made a flight of 3 h 06:18, a new German endurance record. In 1912 the activities had outgrown the Griesheim field and Euler moved to a new factory and airfield outside Frankfurt. Before World War 1 around 100 machines of several types were built, among them the famous "Gelber Hund" ("Yellow Dog"), which made Germany's first mail flight.
During the war Euler-Werke built many prototypes, but production contracts were mainly for Nieuport-copy fighters and license-built LVG two-seaters. After building around 350 airplanes during the war the Euler-Werke was taken over by French occupation forces and closed. The innovative Euler had filed around 120 patent and utility model applications, the most important perhaps the 1910 patent for fixed fuselage mounting of a forward-firing machine-gun, which earned him considerable license fees during the war.
In December 1918 Euler was appointed "Unterstaatssekretär" of the Reichsluftamt with the task of developing civil aviation, but the restrictions of the Versailles Treaty made this impossible. When the treaty was ratified in 1920 the frustrated Euler retired. He built a house in Feldberg in Schwarzwald, where he lived the rest of his life, still involved in sports and in several German motoring and aviation associations. He died there on July 1st, 1957.
Euler qualified for German pilot's licence No. 1 on December 31st, 1909.
August Euler participated in the following air race meetings:
* He was born as August Heinrich Reith, but later took his mother's maiden name.