Caucasian Front
In 1917, Hürkuş became the first Turkish aviator to fly a twin-engine aircraft, a Russian Caudron G.4 captured at the Caucasian Front. In 1918 he manufactured a propeller from scratch in Istanbul, for a Nieuport 17 also captured from the Russians. During the Turkish War of Independence he produced adhesive from gelatin to glue fabric to aircraft wings.