The Ka-25 reference article from the English Wikipedia on 24-Apr-2004
(provided by Fixed Reference: snapshots of Wikipedia from wikipedia.org)

Ka-25

Kamov Ka-25 Russian naval helicopter. Designed by Nikolai Il'yich Kamov or V.A.Glushenkov. First flew in 1961. Was produced by the Kamov company. Featured the characteristic co-axial rotor design of Russian military helicopters. Used either in anti-submarine warfare roles, with radar, dipping sonar and a towed MAD ('A' variant) or in a OTH missile guidance role with just a radar ('B' variant). Armed with torpedoes or nuclear depth-charges.

NATO reporting name: Hormone
List of Aircraft - Aircraft Manufacturers - Aircraft Engines - Aircraft Engine Manufacturers
Airlines - Air Forces - Aircraft Weapons - Missiles - Years in Aviation