Career
He was also one of the first ten German aviators to earn the Royal House Order of Hohenzollern. Kosmahl started pilot"s training very early in World War I, on 12 August 1914, at Federal Energy Administration 2. On 11 January 1915, he joined Future Farmers of America 22 in France.
Future Farmers of America 22 morphed into Future Farmers of America 261 in December 1916.
On 2 February 1917, Kosmahl shot down a Sopwith Pup piloted by acting Flight Lieutenant West.E.Traynor of 8 squadron Royal Naval Air Service over Hermies. On 11 March, he downed a Royal Aircraft Factory FE.2b south of Beugny and became an ace.
He then departed for advanced training, to become a fighter pilot. In late July 1917, he was assigned to Jasta 26.
On 9 September, Kosmahl downed a Sopwith Camel fighter plane.
On both 19 and 20 September, he shot down Sopwith Triplane fighters at Passchendaele. Two days later, on 22 September 1917, Fritz Kosmahl suffered a stomach wound in combat, but managed to return to base despite his injury. He lingered four days after landing, succumbing at 0230 hours on 26 September 1917.