Vertipedia - Boeing CH-47C Chinook

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 devices: 2 in Tandem (Fore/aft) configuration

Crew required: 2 in Tandem arrangement

Landing gear: Wheels (non-retractable)

Key Characteristics

Data on key physical features

Aircraft Details

Data on aircraft configuration, weights, flight performance and equipment

Layout and Dimensions

Weights and Performance

Engine Details

Primary Lift Device

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
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

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:

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:

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

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):

References

References and sources used

Boeing Helicopters CH-47 Chinook

Anderton, David and MIller, Jay
Aerofax, Arlington TX, 1989 (page 27)
Book
Aerofax Minigraph 27

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Overview

Attribution

Number of engines:	2 Unknowns
Max Level Flight Speed:	290 km/h	156 kts
Max Range:
Max Endurance:

Main Rotor Diameter:	18.29 m	60.00 ft
Max Gross Weight (ground):	20,865 kg	46,000 lb