in 2000. Entered service in 2004. Kh-BD conventional and nuclear armed version with said range up to 3000 km or greater, near or more than 5000 km range. Kh-50 or Kh-SD new stealthy short to medium (300 to 1500–1900 km) ranges and conventional (or also nuclear) variant (somewhat analogue of AGM-158 JASSM). Length is 6m, Uses inertial/GLONASS/DSMAC guidance Soumar - Missile likely derived from the Kh-55 produced by Iran. It was believed originally that the RK-55 (SSC-X-4 "Slingshot" and SS-N-21 "Sampson") were land- and submarine-launched derivatives of the Kh-55, but it is now known that the Kh-55 is different from the other two as its motor drops down below the missile during flight. Operators Current operators : acquired 12 from Ukraine. : acquired 6 from Ukraine. : the Russian Air Force uses the Kh-55SM, Kh-555 and the newest Kh-101/102. Former operators : the Soviet Air Force deployed the Kh-55 as its original operator, passed to successor states after the dissolution of the Soviet Union. : ~487 scrapped, ~587 returned to Russia See also 3M-54 Kalibr – developed from the Kh-55 RK-55 – so similar to the Kh-55 it was long believed in the West to be merely a sub-/surface-launched version AGM-86 Air-Launched Cruise Missile – 1430 kg missile with 2400+ km range, Mach 0.73 AGM-129 ACM (Advanced Cruise Missile – stealthy 1330 kg missile with 3700 km range) (decommissioned) Ra'ad ALCM - Comparable Pakistani missile of similar operational history BGM-109 Tomahawk – surface/sub- launched, but otherwise similar to the Kh-55 Nirbhay (India) – Nirbhay is an all-weather low-cost medium-range cruise missile CJ-10 – Chinese land-attack cruise missile, believed to have incorporated elements from the Kh-55 Soumar – Iranian land-attack cruise missile Meshkat Hoveyzeh Babur missile Pakistani missile Korshun – Ukrainian land-attack cruise missile in development Notes References Bibliography External links CSIS Missile Threat - KH-55 worldweapon.ru - has good pics at the bottom GlobalSecurity.org - Kh-55 fas.org - AS-15 KENT - Excellent review of the routes by which Kh-55 technology has proliferated. Nuclear cruise missiles of the Soviet Union Nuclear cruise missiles of Russia Cruise missiles of Russia Cruise missiles of the Soviet Union MKB Raduga products Nuclear air-to-surface missiles Military equipment introduced in the 1990s