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

Brandenburg KW
   Three of these two-seat armed reconnaissance seaplanes were supplied during 1916. Although designed for the 260 h.p. Mercedes D IVa engine, they were fitted with the 200 h.p. Benz Bz IV, in which form they were underpowered and suitable only for training duties. Engine, 200 h.p. Benz Bz IV. Span, 16.4 m. (53 ft. 9 3/4 in.). Length, 11.16 m. (36 ft. 7 3/8 in.). Height, 4.06 m. (13 ft. 3 7/8 in.). Area, 60.4 sq.m. (652 sq.ft.). Weights: Empty, 1,447 kg. (3,183 lb.). Loaded, 2,106 kg. (4,633 lb.). Speed, 134 km.hr. (83.725 m.p.h.). Climb, 1,000 m. (3,280 ft.) in 14.5 min. Duration, 6 hr. Armament, one Parabellum machine-gun.

C.Owers Hansa-Brandenburg Aircraft of WWI Vol.2: Biplane Seaplanes (A Centennial Perspective on Great War Airplanes 18)

Type KW
  
   Brandenburg continued to supply small numbers of floatplanes to the German Navy. Three KW two-seat, three-bay reconnaissance biplanes in the CFT Class were supplied during April and May 1916. The KW featured the inward-sloping interplane struts and a first bay devoid of bracing cables. Although intended to have the 260-hp Mercedes D.IVa engine after testing, the 200-hp Benz Bz.IV replaced the Mercedes and the performance suffered accordingly, such that the machines, MNs 588 - 590, were only used for training. These machines survived the war and were at the Hage repair depot in November 1918. Post-war Italy received MN 589 and Japan received MN 588.


Brandenburg KW Specifications
Source Typenschau Gray & Thetford Brandenburg 3-View SVK MN 590 (588 - 590)
Span, m 16.30/16.30 16.4 16.400/16.400 16.300/16.300
Length, m 10.55 11.16 ca 10.500 10.550
Height, m - 4.06 4.950 -
Chord, m - - 1.900 1.900
Areas in m2
Wings 60.00 60.4 - -
Ailerons 7.30 - - 7.30
Elevators 1.65 - - 1.65
Rudder 1.00 - - 1.00
Empty Wt, kg 1,471 1,447 1,445 1,471
Loaded Wt, kg 2,135 2,106 2,106 2,135
Performance
Speed in km/hr 134 134 - -
Time to 800 m 11 minutes - - 11 minutes
Time to 1000 m 14.3 minutes 14.5 minutes - 14.3 minutes
Time to 1500 m 24.3 minutes - - 24.3 minutes
Endurance - 6 hours - -
Motor 220-hp Benz 200-hp Benz Bz.IV 220-hp Benz 220-hp Benz

M.Dusing German Aviation Industry in WWI. Volume 1 (A Centennial Perspective on Great War Airplanes 84)

Hansa und Brandenburgische Flugzeugwerke AG (Brand)

Aircraft Development:

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  After the parent factory had started deliveries of the “GW” Series in 1916, Heinkel's team produced a floatplane with the designation “KW”. This was a development of the “LW” and was powered with a Benz Bz.IV of 200 hp (some sources quote the Benz Bz.IVa of 220 hp). Three aircraft were supplied as training machines, numbered 588-590.
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