Series of twin-boom reconnaissance biplanes, each armed with one machine-gun in the nose. C.I and C.II land-planes had a four-wheel landing gear under the central crew nacelle and a tailskid under each boom. Power was provided by a 160hp Mercedes D.III and 150hp Benz III or 220hp Benz Bz.IV pusher engine respectively. The similarly powered C.I-W (one built) and C.II-W (two built) twin-float seaplane versions were operated by the German Navy in a coastal reconnaissance and defence role. C.Is and C.IIs became operational over the Western Front in the latter half of 1915.