Derivatives / Succeeded by -- gas turbine - General Electric LM2500 -- gas turbine - Zorya Mashproekt DS-71 -- gas turbine - Rolls Royce MT30 -- gas turbine - Brown Boveri & Cie -- gas turbine - Rolls Royce Spey -- gas turbine - Rolls Royce Olympus -- gas turbine - Rolls Royce Tyne -- gas turbine - Allison 570 -- gas turbine - Pratt & Whitney FT4A -- gas turbine - Zorya Mashproekt DT-59 2009 gas turbine - Rolls Royce WR21 Used by 1962 County class guided-missile destroyer DDG 41963 Kashin class guided-missile destroyer DDG 41968 Alpino class frigate FF 21976 Polar class icebreakers AW 11980 Rajput class guided-missile destroyer DDG 22005 Type 052C class guided-missile destroyer DDG 22014 Type 052D guided-missile destroyer DDG 22020 Type 055 Nanchang class guided-missile destroyer DDG 4 In Service Royal Navy Pakistan Navy Chilean Navy Italian Navy US Coast Guard Indian Navy 中國人民解放軍海軍