Development and Design
The R-5 was developed by the design bureau led by Nikolai Nikolaevich Polikarpov as a replacement for the R-1 which served as the standard reconnaissance and light bomber aircraft with the Soviet Air Force.
The prototype first flew in autumn 1928, powered by an imported German BMW VI V-12 engine. It was an unequal span single bay biplane of mainly wooden construction.
After extensive evaluation, the R-5 entered production in 1930, powered by Mikulin M-17s, a licence built copy of the BMW-VI, as a reconnaissance bomber. Further modified versions were produced to serve as floatplanes, ground attack aircraft and civil transports.
The R-5SSS, an improved reconnaissance bomber with improved streamlining, served as the basis for the Polikarpov R-Z, which succeeded the R-5 in production.
Read more about this topic: Polikarpov R-5
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