The Kamerton-N Ratnik is a 1990s Russian light autogyro designed and built by Kamerton-N Ltd of Shchyolkovo.
The Ratnik, with an enclosed glazed cabin and side-by-side configuration seating for two, was developed by Kamerton-N in partnership with the Chkalov Air Force Science and Research Institute. The Ratnik has a two-blade main rotor and is powered by a Samson 760 piston engine driving a pusher propeller inside a duct ring, the rudder is also mounted inside the duct. The autogyro started flight trials in 1995.