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Chizhevskiy BOK-3 light utility and liaison aircraft

VictorXL188

Former Aviation journalist/writer
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Nearly seven years late but here's the data on the BOK-3. The BOK-3 was built in 1933 as a four-seat liaison aircraft with side by side seating (it was also known as Tsebrikov BOK-3 utility/liaison aircraft (see https://www.secretprojects.co.uk/threads/tsagi-zavod-39-tskb-designations.7286/)). It featured a semi-monocoque fuselage, with ply covered wings and fabric covered control surfaces. The sole example first flew in 1933. A number of variants were planned including a crop sprayer/seeder and a military trainer. The latter was to be fitted with a fixed forward-firing PV-1 machine gun and a manually operated turret fitted with a single DA machine-gun with provision for a single FAB-100 100 kg bomb or a reconnaissance camera.
General characteristics
  • Crew: 1
  • Capacity: 3 pax
  • Length: 7.1 m (23 ft 3½ in)
  • Wingspan: 11 m (36 ft 1 in)
  • Powerplant: 1 × M-48 7-cyl radial, 149 kW (200 hp)
Data from Bill Gunston's The Osprey Encyclopaedia of Russian Aircraft 1875–1995 ISBN 1-85532-405-9
 
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