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At a glance
Measured figures
Chinook HC6A · Length
Single sourceChinook / RAF specification (variant not stated) · Length · Length
Single sourceConfiguration
| Specification | Boeing Chinook (UK variants) | Sikorsky S-70 |
|---|---|---|
| Type | Transport helicopter[source] | Medium-lift transport/ utility helicopter[source] |
| Manufacturer | Boeing Defense, Space & Security[source] | Sikorsky Aircraft[source] |
| Designer | Boeing-Vertol[source] | — |
| Status | In service[source] | In service[source] |
S-70i · from forward tip main rotor to rear tip tail rotor
Single source64 ft 10 in (19.76 m) from forward tip main rotor to rear tip tail rotor[source]
S-70i · between tips of tail wings
Single source14 ft 4 in (4.37 m) between tips of tail wings[source]
Chinook HC6A · 2 ×
Single sourceChinook / RAF specification (variant not stated) · Rotor diameter · Rotor
Single source2 × 60 ft 0 in (18.29 m)[source]
18.29m[source]Chinook / RAF specification (variant not stated) · Rotor
S-70i · Main rotor diameter
Single source53 ft 8 in (16.36 m)[source]
Empty; Chinook HC6A · Empty weight
Single sourceGross; Chinook HC6A · Gross weight
Single sourceMaximum take-off; Chinook HC6A · Max takeoff weight
Single source22,450 lb (10,183 kg)[source]
26,680 lb (12,102 kg)[source]
50,000 lb (22,680 kg)[source]
Empty; S-70i · Empty weight
Single sourceGross; S-70i · Gross weight
Single sourceChinook HC6A · pilot, copilot, two weapon system operators/loadmasters
Single source4 (pilot, copilot, two weapon system operators/loadmasters)[source]
2 Pilots, 2 Weapon System Operators[source]Chinook / RAF specification (variant not stated) · AircrewSource text · numeric interpretation needs review
S-70i · pilot, co-pilot, & gunners or crew chiefs
Single source4 (pilot, co-pilot, & gunners or crew chiefs)[source]
Maximum; Chinook HC6A · Maximum speed
Single sourceMaximum; Chinook / RAF specification (variant not stated) · Maximum speed · Maximum speed
Single source160 kn (180 mph, 300 km/h)[source]
160kt[source]Chinook / RAF specification (variant not stated) · Maximum speed
Cruise; S-70i · at maximum cruise (standard day, sea level)
Single sourceMaximum; S-70i · Maximum speed
Single sourceChinook HC6A · 2 × Honeywell T55-GA-714A turboshaft free-turbine engines, 3,750 shp ( ) each
Single source2 × Honeywell T55-GA-714A turboshaft free-turbine engines, 3,750 shp (2,800 kW) each[source]
S-70i · 2 × General Electric T700-GE-701D turboshaft engines, 1,940 shp ( ) each
Single source2 × General Electric T700-GE-701D turboshaft engines, 1,940 shp (1,450 kW) each[source]
Bars compare reported quantities only. A larger figure does not make a system better; configurations and test conditions differ.
| Primary user |
|---|
Royal Air Force[source] |
| — |
| Number built | 72 (all RAF models)[source] | — |
|---|
| Introduction date | 22 November 1980 (with RAF)[source] | 1979[source] |
|---|
| First flight | 23 March 1980 (HC1)[source] | October 1974[source] |
|---|
| Developed from | Boeing CH-47 Chinook[source] | — |
|---|
| Variants | HC1, HC1B, HC2, HC3, HC4, HC5, HC6, HC6A, HC7[source] | Sikorsky UH-60 Black Hawk Sikorsky SH-60 Seahawk Sikorsky HH-60 Pave Hawk Sikorsky MH-60 Jayhawk Mitsubishi H-60[source] |
|---|
| Capacity | 55 soldiers and up to 10 tonnes of freight or equipment[source] | 11 foldable seats for troops (+12th seat quick install option) / 6 stretchers / 9,000 lb (4,082 kg) external slung load[source] |
|---|
| Guns | 2× M134 Miniguns and 1× M60 machine gun[source] 2 x M134 Miniguns, 1 x M60 Machine Gun[source]Chinook / RAF specification (variant not stated) · Guns | — |
|---|
| Main rotor area | 5,655.2 sq ft (525.39 m 2 )[source] | 2,262.33 sq ft (210.177 m 2 )[source] |
|---|
| Blade section | - root: Boeing VR-7; tip: Boeing VR-8[source] | - root: SC1095/SC1095R8; tip: Sikorsky SC1095[source] |
|---|
| Cockpit Avionics | Glass cockpit with a BAE Systems Digital Advanced Flight Control System (DAFCS), includes automatic modes such as auto-hover and auto-descend to ease pilot workload.[source] | — |
|---|
| Sensors | Electro-Optical Sensor Turret (EOST) with two infrared cameras and a low-light TV function .[source] EOST turret including two infrared cameras and a low-light TV function[source]Chinook / RAF specification (variant not stated) · Electro optics | — |
|---|
| Defensive Aids | Missile Warning Receiver, Infrared Warning Receiver, Radar Warning Receiver, Counter-measure dispensing system (flares).[source] | — |
|---|
| Country of origin | United States[source]Boeing Chinook (UK variants) · origin explicitly stated in the linked current national-inventory row; no inference from operator or shipyard | — |
|---|
| Powerplant | Two Honeywell 55-L-714A Free-Turbine engines[source]Chinook / RAF specification (variant not stated) · Powerplant | — |
|---|
| Reported engine rating | 4,168shp each[source]Chinook / RAF specification (variant not stated) · ThrustSource text · numeric interpretation needs review | — |
|---|
| Flight altitude | 15,000ft[source]Chinook / RAF specification (variant not stated) · Maximum altitude | — |
|---|
| Primary users | — | U.S. Customs and Border Protection U.S. Drug Enforcement Administration See Operators section for others[source] |
|---|
| Manufactured | — | 1970s–present[source] |
|---|
| Developed into | — | Sikorsky S-92[source] |
|---|
| Fuel capacity | — | 360 US gal (300 imp gal; 1,363 L)[source] |
|---|
| Specific fuel consumption | — | 0.462 lb/hp/h (0.0781 kg/kW/ks)[source] |
|---|
| National origin | — | United States[source] |
|---|
Maximum take-off; S-70i · or
Single sourceMaximum take-off; S-70i · with external load
Single source