Hansa-Brandenburg KDW
1916
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Hansa-Brandenburg KDW

The KDW twin-float single-seat fighter seaplane was essentially a conversion of the land-based KD (D.I) to provide an interim aircraft for floatplane station defence. The only major change introduced on the prototype apart from provision of a twin-float chassis was some slight extension of the wings, but the fin area was later increased to compensate for the increased keel area resulting from the addition of the floats. The prototypes were fitted with the 150hp Benz Bz III six-cylinder water-cooled engine, but apart from a preproduction batch of 10 similarly-powered aircraft, all subsequent examples of the KDW had the 160hp Maybach Mb III six-cylinder water-cooled engine. The first production series was armed with a single synchronised 7.92mm LMG 08/15 machine gun mounted on the starboard side of the nose, but the final batch of 20 delivered between October 1917 and February 1918 had a gun mounted on each side of the cockpit and additional Vee-type interplane bracing struts. A total of 58 KDW float fighters was delivered.

W.Green, D.Swanborough "The Complete Book of Fighters", 2000

3-View 
Hansa-Brandenburg KDWA three-view drawing (1663 x 1205)


Specification 
 MODELKDW
 CREW1
 ENGINE1 x 160hp Maybach Mb.III
 WEIGHTS
    Take-off weight1039 kg2291 lb
    Empty weight759 kg1673 lb
 DIMENSIONS
    Wingspan9.30 m31 ft 6 in
    Length7.86 m26 ft 9 in
    Height3.35 m11 ft 0 in
    Wing area29.15 m2313.77 sq ft
 PERFORMANCE
    Max. speed171 km/h106 mph
    Cruise speed154 km/h96 mph
    Ceiling3500 m11500 ft
    Rate of climb145 m/min500 ft/min
 ARMAMENT2 x 7.92mm

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