Technical data
Type R-Z
Function Reconnaissater
Year 1935
Crew 2
Engines 1*750/850hp M-34N
Length 9.7m
Wingspan 15.5/11.6m
Wing area 42.52m2
Empty weight 2007kg
Loaded weight 3150kg
Wing Load (kg/m2) 74.0
Power load (kg/hp) 4.2
Speed at 0m 276km/h
Speed at 3500m 316km/h
Landing Speed 105km/h
Landing Roll 14sec
Takeoff Roll 15sec
Turn time 18sec
Range 1000km
Ceiling 8700m
3000m 6.6min
5000m 11.8min
Guns up to 7*7.62mm
Bombs 500kg

R-Z, Factory-1

53k b/w drawing of RZ on skis, courtesy of Sergey Andreev;

Seriously redesigned version of R-5, intended for ground attack rather than for reconnaissance missions. It was created under initiative of A.M.Belenkovich (Director of Factory-1) by team of designers at this factory (E.P.Shekunov, D.S.Markov, A.A.Skrabov and others). R-Z was smaller than predecessor and had different powerplant. Other changes included enclosed cockpit, covered defensive turret (in same canopy). Construction was lighter than of the R-5 and somewhat weaker, but still fulfilled all requirements.

Modifications failed to add much of performance. Opposite, R-Z was much tougher in handling and put much more stress on pilot than its predecessor.

Drawing of RZ in Spanish colors (28k) from 'Krylia Rodini' March 1989

Early batches had same armament as R-5, later was strengthened. R-Z was widely used during Civil War in Spain.

In production during 1935- 1937, it was the last Soviet biplane reconnaissater built in series.


R-Z attacker R-Z record setter R-Z cargo
P-Z passenger PT-AM-34NB transport

More Links...
  • R-Z, Polikarpov
  • R-5 and R-Z

  • References:
  • "History of aircraft construction in the USSR", Vol.1 p.511-512;

  • Modified January 30, 1998
    with help of Sergey Andreev;
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