The Kamov Ka-31 (NATO reporting name 'Helix') is a military helicopter developed for the Soviet Navy and currently in service in Russia, China and India in the naval airborne early warning and control role.
O Kamov Ka-31 (disignación OTAN 'Helix') é un helicóptero militar desenvolvido para a Armada Soviética e no presente en servizo en Rusia, China e India na función naval de alerta temprana e control aerotransportado.