The Raduga K-10S (NATO reporting name: AS-2 Kipper) was a Soviet supersonic anti-ship missile that was usually nuclear-armed. Its development began in 1955, and it entered service with the Soviet armed forces in 1961. The Kipper missile was a very large one, approximately the size of a small jet fighter, because of the rather primitive state of anti-ship missile technology in the 1950s and 60s. This missile was never used in combat anywhere.