Boeing-Vertol Model 114/YHC-1B
A derivative of the YHC-1A with more cabin space, meeting the requirement of carrying an entire platoon [Ref Hirschberg. The American Helicopter, pg 50]. Developed in 1959, the YHC-1B Chinook was redesignated CH-47A in 1962; the commercial version designation is Model 234. The helicopter had won a competition for 'Army medium transport helicopter June 1959'; the cabin capacity is either 32 troops, 24 litters, or 2 to 3 U.S. customary tons of cargo [Ref 312].
Overview
Data on design, manufacture and statusDesign authority: The Boeing Company - Vertol Division
Primary manufacturer: The Boeing Company - Vertol Division
Parent type: Boeing-Vertol Model 234/H-47 Chinook
Aircraft status: No longer flying
Configuration
Primary flight and mechanical characteristicsVTOL type: Helicopter
Lift configuration: Tandem (Fore/aft) (x2)
Crew required: 3
Crew seating: Side-by-side
Landing gear: Wheels (non-retractable)
Overall Dimensions
Data on aircraft sizeOverall Length: 30.14 m (98.9 ft)
Overall Width: 17.37 m (57.0 ft)
Engine Details
Aircraft powerplant (lift and/or propulsion)Total number of engines: 2
Engine designation: Lycoming T55-L-5 turbine
Engine manufacturer: Lycoming Engines
Max continuous power: 1642 kW (2201 hp)
Weights and Performance
Data on aircraft weight and flight characteristicsMax Gross Weight (ground): 14969 kg (33000 lb)
Max Range: 185 km (100 nm)
