O.Thetford, P.Gray German Aircraft of the First World War (Putnam)
Gotha WD 8
This machine, built in December 1915, was virtually a single-engined version of the WD 7, the same wing cellule, float chassis and tail assembly being used. It was intended for armed reconnaissance, but only a single example (No. 476) was produced. Engine, 240 h.p. Maybach Mb IV. Span, 160 m. (52 ft. 6 in.). Length, 11.2 m. (36 ft. 9 in.). Area, 59 sq.m. (637 sq.ft.). Weights: Empty, 1,250 kg. (2,750 lb.). Loaded. 1,770 kg. (3,894 lb.). Speed, 130 km.hr. (81.25 m.p.h.). Ceiling, 4,500 m. (14,760 ft.). Armament, one manually operated Parabellum machine-gun in rear cockpit.