Kamov Ka 25 (NATO reporting name: Hormone) walkaround
55° 50′ 00″ N / 38° 11′ 03″ E
The Kamov Ka 25 (NATO reporting name: Hormone) is a niche design well suited to its purpose of fitting aboard small warships to serve in ASW assignments. Its small, four -pointed footprint requires minimal volume for its size, especially lacking any appreciable tail boom. Contra-rotating rotor disks negate the need for a tail rotor though add their own requirements. The twin engines power a transmission which powers both rotor disks so both keep turning should an engine fail. Should both engines fail then some differential lift is mechanically possible to afford directional control under autorotation. The outer tail fins are canted inward for directional stability under autorotation, as well as rudders for yaw control. The rotor blades are nitrogen gas filled (for crack detection) aluminum construction.
Our thanks to contributor Макс Климов (Max Klimov) for capturing as well as sharing these images of a Kamov Ka 25 in the Central Armed Forces Museum (Museum of the Soviet Army) in Moscow.