The D.III was similar to the LVG D.II in that it was a single-seat biplane fighter with wings of unequal span and a plywood covered semi-monocoque fuselage.
The lower wing had rounded tips, while upper wings had straight tips with a slight angle.
[1] Test flights began in May 1917 and were completed by 2 June 1917.
However, the Idflieg decided that the D.III was too large and too heavy, so the D.III remained a prototype.
Data from German Aircraft of the First World War[2]General characteristics Performance Armament