K-6
Role Mail-plane / fast print matrix transport
National origin USSR
Manufacturer GROS
Designer Konstantin Alekseyevich Kalinin
First flight August 1930
Number built 1
Developed from Kalinin K-5

The Kalinin K-6 was a mail-plane designed by Konstantin Alekseevič Kalinin. It was an aircraft largely derived from the previous Kalinin K-5, which shared its wing, tail and landing gear.[1] This aircraft differed from the previous one by the new fuselage design, which was slender and had a four-meter compartment for the load (370 kg). The K-6 flew for the first time in 1930 but remained at the prototype stage, since mass production was never authorised.

Specifications (K-6)

Data from The Osprey Encyclopedia of Russian Aircraft 1875–1995[2]

General characteristics

  • Crew: 2
  • Length: 15 m (49 ft 3 in)
  • Wingspan: 20 m (65 ft 7 in)
  • Wing area: 64 m2 (690 sq ft)
  • Empty weight: 1,720 kg (3,792 lb)
  • Gross weight: 2,820 kg (6,217 lb)
  • Fuel capacity: 550 kg (1,210 lb) fuel; 50 kg (110 lb) oil
  • Powerplant: 1 × Gnome et Rhône 9A Jupiter 9-cylinder air-cooled radial piston engine, 310 kW (420 hp)
  • Propellers: 2-bladed fixed pitch propeller

Performance

  • Maximum speed: 210 km/h (130 mph, 110 kn)
  • Cruise speed: 170 km/h (110 mph, 92 kn)
  • Landing speed: 75 km/h (47 mph; 40 kn)
  • Range: 1,250 km (780 mi, 670 nmi)
  • Service ceiling: 5,600 m (18,400 ft)
  • Time to altitude: 1,000 m (3,300 ft) in 5 minutes

References

  1. ↑ Savine, Alexandre (15 May 1997). "K-6, K.A.Kalinin". Russian Aviation Museum. Retrieved 4 February 2018.
  2. ↑ Gunston, Bill (1995). The Osprey Encyclopedia of Russian Aircraft 1875–1995. London: Osprey. p. 134. ISBN 1-85532-405-9.
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