Technical data
Type Porokhovschikov
6 6bis
Function Trainer
Year 1921
Crew 2
Engines 1*110hp Rhône
Length 7.3m
Wingspan 10.2/8.8m
Wing area 32.0m2 33.1m2
Empty weight 420kg
Loaded weight 682kg
Wing Load (kg/m2) 21.3 20.6
Power load (kg/hp) 6.2
Speed at 0m 120km/h
Climb to 1000m - 8.0min
Climb to 2000m - 20.0min
Climb to 3000m - 44.0min
Ceiling 200m 3500m
Endurance 3.3h

Porokhovschikov-6, A.A.Porokhovschikov

Picture (20k) from "History of aircraft construction in the USSR", Vol.1 p.201

Trainer biplane of archaic design. Similar to Porokhovschikov-5, but with strengthened undercarriage. First aircraft had ribs and skin removed in the center section of the upper wing (as shown on photo above) for unrestricted view. Performance was below any acceptance - ceiling only 200 m!

In following Porokhovschikov-6bis this 'modification' was deleted, and aircraft flew well. It soon became obvious that with simplified wing 'box' (less struts and wires) and normal fuselage instead tail frame speed may be increased by 20-30km/h.

40 built, in service until 1923.

Sources :
  • "History of aircraft construction in the USSR", Vol.1 p.290

  • Modified September 9, 1997 Back to
    Main Gate