9A2

9A2 is a designation that can refer to several different things, primarily in the context of military equipment. Without further context, it is most commonly associated with a Soviet/Russian anti-aircraft missile system. Specifically, the 9A2 is the designation for the missile component of the 2K12 Kub, also known as the SA-6 Gainful in NATO reporting.

The 2K12 Kub is a medium-range, low-to-medium altitude surface-to-air missile system designed to engage aircraft, helicopters, and cruise missiles. The 9A2 missile itself is a solid-propellant, ramjet-powered missile typically launched from a tracked vehicle. It operates using semi-active radar homing, meaning the target must be illuminated by a radar source for the missile to track it. The system entered service with the Soviet Union in the 1960s and has seen widespread export and use by various countries. Over its service life, numerous upgrades and modifications have been developed for both the missile and the overall system.

In other contexts, "9A2" might appear as a component part number or a specific model designation within a larger system, not necessarily related to the anti-aircraft missile. However, the association with the 2K12 Kub remains its most prominent meaning.