R-109

Russian derivative of the German Wasserfall, an interim design between the R-101 and R-108. The missile did not reach flight test stage before it was cancellation in 1951.

The R-109 was an interim version of the R-101, between the R-101 and the ultimate R-108, which would use air-pressurized kerosene fuel and a new Russian feed system, resulting in a more economical size and weight of pressurant bottles. This version had a payload of 500 kg and a longer range than the German Wasserfall or the R-101. It also featured more compact radio guidance and electronics, and auto-stabilization in flight. There were improvements as well in camouflage and anti-countermeasures.