No.109 Helicopter Unit (Knights) is a squadron of the Indian Air Force. Raised on August 26, 1961 equipped with Mi 4s, it later converted to Mi 8s in 1974, which were further replaced by Mi-17 V5 in 2016. Based at Sulur Air Force Station, it currently forms a part of the Southern Air Command.Dutch Aviation Society. OrBat of the Indian Air Force
