Knoller C.II

Aviatik was contracted to build the Knoller C.II in two contracts, an August 1916 contract for thirty-six Series 36 planes with the 185hp Daimler engine and on September 1916 a further contract for twenty-four Series 136 powered by the 160hp Daimler. Only 18-19 were completed, and none of the Series 136 planes. Like the Knoller B.I before it, the C.II was plagued by failures during flight testing. Against Aviatik's advice, five of the planes were sent to the Eastern Front for combat evaluation in July 1917, where the type was found to be unstable in anything but the calmest of weather.