The Kamov Ka-31 is a military helicopter developed for the Soviet Navy and currently in service in Russia and India in the naval airborne early warning role. As with all Kamov helicopters except the Ka-60--62 family the Ka-31 has co-axially mounted contra-rotating main rotors. The airframe of the Ka-31 is based on the Kamov Ka-27. One visually distinctive feature of the Ka-31 is the large antenna of the early warning radar which is either rotating or folded and stowed under the fuselage.
Made by Kamov.
It is the successor of the Kamov Ka-27 .