Aviatik C.I
 The Aviatik C.I was a observation aircraft which came into service during World War I in April 1915. It was the successor to the Aviatik B.I and B.II models. In the C.I the observer sat in front of the pilot with a machine-gun on a flexible mounting which gave the crew the means to attack enemy aircraft. The positions of the pilot and observer were reversed in the C.Ia version. Later models of the plane included the Aviatik C.II and the C.III which had more powerful engines.