Overview

Data on design, manufacture and status

Design authority: The Boeing Company

Primary manufacturer: The Boeing Company

Parent type: Boeing Model 234/H-47 Chinook

Aircraft status: Operational

Configuration

Primary flight and mechanical characteristics

VTOL type: Helicopter

Lift configuration: Tandem (Fore/aft) (x2)

Crew required: 2

Crew seating: Tandem

Landing gear: Wheels (non-retractable)

Layout and Dimensions

Data on aircraft size

Overall Dimensions
Overall Height: 5.78 m 19.0 ft
Overall Length: 30.18 m 99.0 ft
Overall Width: 18.29 m 60.0 ft
Airframe Dimensions
Airframe Length: 15.90 m 52.2 ft
Airframe Width: 3.78 m 12.4 ft
Airframe Height: 5.77 m 18.9 ft
Landing Gear Dimensions
Landing Gear Base: 6.85 m 22.5 ft
Landing Gear Track:  
Cabin Dimensions
Cabin Internal Height:  
Cabin Internal Length:  
Cabin Internal Width:  

Weights and Performance

Data on aircraft weight and flight characteristics

Weights
Max Gross Weight (ground): 20,865 kg 46,000 lb
Max Gross Weight (airborne):  
Max Take-off Weight:  
Empty Weight: 9,791 kg 21,586 lb
Useful Load:  
Empty Weight Fraction:  
Climb Performance
Max Rate of Climb:  
Hover Performance
Hover Ceiling IGE:  
Hover Ceiling OGE: 3,078 m 10,100 ft
Limitations
Max Level Flight Speed: 290 km/h 156 kts
Never Exceed Speed:  
Service Ceiling: 4,572 m 15,000 ft
Range and Endurance
Max Range:  
Max Endurance:  

Engine Details

Aircraft powerplant (lift and/or propulsion)

Provided powerplant data is for uninstalled, sea level, static operations.

Powerplant
Number of engines: 2
Normal Ratings
Max continuous:  
Take-off / rated:  
Intermediate:  
Maximum:  
OEI Ratings
OEI contingency:  
OEI continuous:  
OEI 30-second:  
OEI intermediate:  

Primary Lift Device

Data on primary lift devices such as main rotors

Manually foldable blades

Main Rotor Characteristics
Diameter: 18.29 m 60.00 ft
RPM: 225.0 rpm 225.0 rpm
Direction of Rotation: Counter-rotating
Hub Type:
Main Rotor Blade Characteristics
Blade Construction: Fibreglass spar with Nomex fairing and nickel erosion cap
Blade Chord: 0.641 m 2.10 ft
Blade Tip Geometry: Conventional, un-swept
Blade Twist: -0.209 rad -12.000 deg
Number of Blades: 3
Main Rotor Derived Characteristics
Disc Area: 262.68 m² 2827.5 ft²
Disc Loading: 39.72 kg/m² 8.135 lb/ft²
Solidity: 0.0670
Main Rotor Blade Derived Characteristics
Blade area per blade: 5.86 m² 63.1 ft²
Tip Speed: 215.45 m/s 706.9 fps

Primary Control Device

Data on primary control devices such as tail rotors

Tail Rotor Characteristics
Diameter:  
Configuration: Unknown
Direction of Rotation: Unknown
RPM:  
Tail Rotor Blade Characteristics
Number of Blades:  
Blade Construction: N/A
Blade Chord:  
Blade Twist:  
Tail Rotor Derived Characteristics
Disc Area:  
Solidity:  
Tail Rotor Blade Derived Characteristics
Tip Speed:  
Blade Area (per blade):  

Related VFS Resources

Resources related to the CH-47C Chinook, provided by the Vertical Flight Society.
Forum Proceedings
 
Vertiflite articles
Enter a search term in the box above.
Web files from vtol.org
Enter a search term in the box above.
Webpages from vtol.org
Enter a search term in the box above.

Related Public Resources

Resources related to the CH-47C Chinook, provided by public sources across the internet.

Images