Hansa-Brandenburg W.25

The Hansa-Brandenburg W.25 was a German floatplane fighter of the World War I era.

The W.25 was an improved version of the KDW with a modified biplane cellule with conventional inter-plane struts.

One prototype was built, and the aircraft competed with the Albatros W.4, the W.4 demonstrated a better flight performance.

Therefore, Hansa-Brandenburg returned the W.25 to its factory for modification with a second pair of ailerons on the lower wing.

The W.25 was not ordered into production as the Imperial German Navy lost interest in single-seat floatplane fighters.

Specifications

W.25

Crew

1

Length

8.8 m (28 ft 10 in)

Wingspan

10.4 m (34 ft 1 in)

Height

3.45 m (11 ft 4 in)

Wing area

36.53 m2 (393.2 sq ft)

Empty weight

918 kg (2,024 lb)

Gross weight

1,182 kg (2,606 lb)

Powerplant

1 × Benz Bz.III,

6-cylinder water-cooled in-line piston engine,

110 kW (150 hp)

Propellers

2-bladed fixed-pitch propeller

Performance

Maximum speed

160 km/h (99 mph, 86 kn)

Endurance

2 hours 30 minutes

Time to altitude

1,000 m (3,300 ft) 6 minutes 30 seconds

Armament

Guns

2 x fixed forward-firing synchronised 7.92 mm (0.312 in) LMG 08/15 Spandau machine guns