Sivrihisar Airshow 2019 kicks off in Turkey

A helicopter performs during the Sivrihisar Airshow 2019 in Sivrihisar district of Eskisehir in Turkey, on Sept. 14, 2019. The Sivrihisar Airshow, which is organized annually by Sivrihisar Sportive Aviation Society, kicked off here on Saturday. (Photo by Mustafa Kaya/Xinhua)