Boeing Model 234/H-47 Chinook
Type designation for all models of Boeing H-47. The original Vertol designation was the Model 234.
Type Description
Type designation for all models of Boeing H-47. The original Vertol designation was the Model 234.
Initially designated the Vertol 114, the first five Vertol / US Army prototype Chinooks were officially desginated YHC-1B. An additional five aircraft, to be built to production standards, were ordered by the Army in 1960 (followed by 18 more in 1961). These were designated HC-1B. In July 1962, YHC-1Bs were officially redisgnated as YCH-47A, and all HC-1Bs were officially redesignated as CH-47A Chinook.
Milestones Associated with the Boeing Model 234/H-47 Chinook
September 21, 1961
Model 114/YHC-1B :
First flight of the prototype (YHC-1B) of the CH-47 Type series
May 27, 1970
Model 347 :
First flight of the winged Boeing-Vertol Model 347
March 27, 1974
Model 347 :
First flight of the first fully fly-by-wire (FBW) helicopter (Boeing-Vertol Model 347)
June 25, 2001
CH-47F :
First flight of the CH-47F
June 24, 2013
ICH-47F Chinook :
First flight of the ICH-47F
