The R-27 is a medium-range air-to-air missile developed by the Soviet Union, primarily used by various fighter aircraft. It is designed to engage enemy aircraft at significant distances, enhancing the combat capabilities of the platforms it is deployed on. The missile features a semi-active radar homing guidance system, allowing it to track and intercept targets effectively. The R-27 comes in several variants, including the R-27R, which uses radar guidance, and the R-27T, which employs infrared homing. It is compatible with many aircraft, including the MiG-29 and Su-27, making it a versatile weapon in aerial warfare.