Koolhoven F.K.52

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 take-off 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.