FORCETALLY
Loading the evidence…
Preparing your view.
Preparing your view.
At a glance
Measured figures
Bell 427 · Length
Single source37 ft 6 in (11.43 m)[source]
Chinook HC6A · Length
Single sourceConfiguration
| Specification | Bell 427 | Boeing Chinook (UK variants) |
|---|---|---|
| Type | Multipurpose utility helicopter[source] | Transport helicopter[source] |
| National origin | United States/Canada/South Korea[source] | — |
| Manufacturer | Bell Helicopter Samsung Aerospace Industries (later part of Korea Aerospace Industries )[source] | Boeing Defense, Space & Security[source] |
| Status | In service[source] | In service[source] |
Chinook / RAF specification (variant not stated) · Length · Length
Single sourceBell 427 · Main rotor diameter
Single source37 ft 0 in (11.28 m)[source]
Bell 427 · with standard skids
Single source10 ft 6 in (3.20 m) with standard skids[source]
Bell 427 · Crew
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
Cruise; Bell 427 · Cruise speed
Single sourceMaximum; Bell 427 · Maximum speed
Single source140 kn (160 mph, 260 km/h)[source]
138 kn (159 mph, 256 km/h)[source]
Maximum; Chinook HC6A · Maximum speed
Single sourceMaximum; Chinook / RAF specification (variant not stated) · Maximum speed · Maximum speed
Single sourceBell 427 · 2 × Pratt & Whitney Canada PW207D turboshaft engines, 710 shp ( ) each
Single source2 × Pratt & Whitney Canada PW207D turboshaft engines, 710 shp (530 kW) each[source]
Chinook 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]
Bars compare reported quantities only. A larger figure does not make a system better; configurations and test conditions differ.
| Manufactured | 1997–2010[source] | — |
|---|
| Introduction date | 2000[source] | 22 November 1980 (with RAF)[source] |
|---|
| First flight | 11 December 1997[source] | 23 March 1980 (HC1)[source] |
|---|
| Developed from | Bell 407[source] | Boeing CH-47 Chinook[source] |
|---|
| Developed into | Bell 429 GlobalRanger[source] | — |
|---|
| Capacity | 7 passengers / 2,960 lb (1,343 kg) internal load[source] | 55 soldiers and up to 10 tonnes of freight or equipment[source] |
|---|
| Main rotor area | 1,075 sq ft (99.9 m 2 )[source] | 5,655.2 sq ft (525.39 m 2 )[source] |
|---|
| Blade section | - root: Boeing VR-7; tip: Narramore 8%[source] | - root: Boeing VR-7; tip: Boeing VR-8[source] |
|---|
| Designer | — | Boeing-Vertol[source] |
|---|
| Primary user | — | Royal Air Force[source] |
|---|
| Number built | — | 72 (all RAF models)[source] |
|---|
| Variants | — | HC1, HC1B, HC2, HC3, HC4, HC5, HC6, HC6A, HC7[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 |
|---|
| 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 |
|---|
| Reported operators |
| — |
|---|
Maximum take-off; Chinook HC6A · Max takeoff weight
Single source