Aviatik D.VII

The Aviatik D.VII, was a single-seat biplane fighter intended to take part third D-Type contest held at Adlershof on October 1918.
It was basically like the Aviatik D.VI but it had it's vertical and horizontal surfaces redesigned.

It was also powered by the Benz IIIbm with a four-bladed propeller. It was armed with the standard pair of 7,92mm LMG 08/16 machine guns and only one prototype was completed without having seen any military service whatsoever.

Sources:
1. Salamander Books - The Complete Book of Fighters
2. https://en.wikipedia.org/wiki/Aviatik_D.VII