Gotha Ursinus G.I
The first G.I flew in July 1915 followed by a further 17 of these three seater machines. While the prototype used two 160hp Mercedes D IIIs, the production aircraft employed two 150hp Benz Bz IIIs. mounted on the lower wing. A single Mercedes D.III-engined example of a seaplane version was also completed as the U.W.D. (Ursinus Wasser Doppeldecker, or Oscar Ursinus-designed float biplane).