Koolhoven F.K.52

1st Flight 1937

Koolhoven F.K.52 was a Dutch-designed, two-seat reconnaissance-fighter biplane, which was developed in the 1930s by Koolhoven.

The aircraft was equipped with an enclosed cockpit and single-strut landing gear.

Only six aircraft were produced.

The aircraft saw some service in the Finnish Air Force.

Specifications

Crew: 2

Length: 8.25 m (27 ft 1 in)

Wingspan: 9.8 m (32 ft 2 in)

Height: 3.3 m (10 ft 10 in)

Wing area: 28.4 m2 (306 sq ft)

Empty weight: 1,650 kg (3,638 lb)

Max takeoff weight: 2,500 kg (5,512 lb)

Powerplant: 1 × Bristol Mercury VIII 9-cylinder air-cooled radial piston engine, 625 kW (838 hp)

Propellers: 3-bladed variable-pitch propeller

Performance

Maximum speed: 380 km/h (240 mph, 210 kn)

Cruise speed: 308 km/h (191 mph, 166 kn)

Range: 1,130 km (700 mi, 610 nmi)

Service ceiling: 9,800 m (32,200 ft)

Armament

Guns:

2 × forward-firing 7.7 mm machine guns in wings

Bombs:

150 kg (330 lb) of bombs.

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