Koolhoven F.K.55

 

1st Flight 1938

The Koolhoven F.K.55 was a Dutch fighter prototype of the 1930s, which did not progress beyond the prototype stage.

The aircraft flew for the first time on 30 June 1938.

It flew for two minutes then landed.

Underpowered, the FK.55 was cancelled in the same year.

Specifications

Crew: 1

Length: 9.25 m (30 ft 4 in)

Wingspan: 9.60 m (31 ft 6 in)

Height: 2.60 m (8 ft 6 in)

Wing area: 16.00 m2 (172.23 sq ft)

Empty weight: 1,600 kg (3,527 lb)

Gross weight: 2,208 kg (5,026 lb)

Powerplant: 1 × Lorraine 12Hrs Pétrel V-12 , 640 kW (860 hp)

Performance

Maximum speed: 510 km/h (317 mph, 275 kn)

Cruise speed: 450 km/h (280 mph, 240 kn)

Range: 850 km (528 mi, 459 nmi)

Rate of climb: 13.1 m/s (2,580 ft/min)

Armament

1 x 20 mm Madsen autocannon firing through the propellor

4 x wing-mounted .303 machine guns.

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