O.Thetford, P.Gray German Aircraft of the First World War (Putnam)

Zeppelin-Lindau (Dornier) CS I
  This experimental two-seat seaplane was built during 1918. It was of all-metal construction except for the fabric-covered wing and cruciform tail surfaces. Ailerons were fitted with Flettner-type servos. The machine was fitted with vee-type eight-cylinder Benz engine, and both nose and side radiator installations were tested. Engine, 195 h.p. Benz Bz IIIb. Span, 13.18 m. (43 ft. 2 7/8 in.). Area, 29.8 sq.m. (322 sq.ft.). Weights: Empty, 960 kg. (2,112 lb.). Loaded, 1,479 kg. (3,254 lb.). Speed, 150 km.hr. (93.75 m.p.h.). Armament, one Spandau and one Parabellum machine-guns.