12/29/2014. Remarks by
Johan Visschedijk: "Only three WD 20s were built (serials 1515 to 1517), and they were, in effect, purely long-range reconnaissance versions of the
WD 14, with an extra fuel tank carried under the fuselage in place of a torpedo. The aircraft was powered by two 200 hp Benz Bz IV engines and armament consisted of a manually operated Parabellum machine gun in the nose and one aft of wings."
