Previously known as Piasecki More recently known as Boeing Boeing-Vertol history Visit Boeing timeline List of Boeing-Vertol models Model / Versions 1952 H-21 V42 1956 H-21 V43 1957 V43B 1957 H-21 V44 1958 V44A 1958 V44B 1960 V44C 1958 107 1959 114 1959 107 YHC-1A 1962 CH-46C 1960 107 107-ii 1963 CH-113 Labrador 1964 CH-113A Voyageur 1964 hkp4a 1965 hkp4b 1980 hkp4d 1960 107-ii 107M H-46 Sea Knight 1962 CH-46A 1962 CH-46B 1962 UH-46A 1966 CH-46D 1966 UH-46D 1968 CH-46F 1970 HH-46A 1970 HH-46D 1979 CH-46E 2006 HH-46E 1960 114 CH-47 Chinook 1961 CH-47A Chinook 1961 YHC-1B / YCH-47A 1965 ACH-47A Guns A Go-Go 1966 CH-47B Chinook 1967 CH-47C Chinook 1974 CH-147 Chinook 1970 CH-47 Chinook 347 1974 179 / YUH-61A 1978 114 234 1978 234ER 1980 234LR 1982 234UT 1984 234MLR 1996 234Combi 1987 107M H-46 Sea Knight 360 / CH-46X