The Rumpler 6B-2 was a single-seat floatplane fighter derived from the two-seat Rumpler C.IV landplane. The earlier 6B-1 was based on the Rumpler C.I. This example, German navy serial 1040, was interned by the neutral Dutch near Westkapelle, Zeeland on 29 May 1917. They liked it enough to ship it to the Netherlands East Indies in 1918, and it made its first flight here in April 1919. A second seat was later installed but it crashed during a test flight in October 1919. It is seen wearing early Dutch 'orange meatball' insignia. Photo from: Nederlands Instituut voor Militaire Historie