|Wing Load (kg/m2)||74.0|
|Power load (kg/hp)||4.2|
|Speed at 0m||276km/h|
|Speed at 3500m||316km/h|
|Guns||up to 7*7.62mm|
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.
Early batches had same armament as R-5, later was strengthened. R-Z was widely used during Civil War in Spain.
|R-Z attacker||R-Z record setter||R-Z cargo|
|P-Z passenger||PT-AM-34NB transport|