Credit
Sardaka · CC BY-SA 4.0 · Resized · CC BY-SA 4.0 · Source ↗ · Modified
FORCETALLY
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At a glance
Measured figures
Bell 412EP · including rotors
Single source56 ft 1 in (17.09 m) including rotors[source]
CH-46E · fuselage
Configuration
| Specification | Bell 412 | Boeing Vertol CH-46 Sea Knight |
|---|---|---|
| Crew | one-two pilots[source] | 5: two pilots, one crew chief, one aerial gunner/observer, one tail gunner[source] |
| Type | Multipurpose utility helicopter[source] | Transport helicopter[source] |
| National origin | United States / Canada[source] | United States[source] |
| Manufacturer | Bell Helicopter[source] | Vertol Aircraft Corp. Boeing Vertol |
44 ft 10 in (13.67 m) (fuselage)[source]
Bell 412EP · 1 × Pratt & Whitney Canada PT6T-3D Twin-Pac or PT6T-3DF Twin-Pac coupled turboshaft engine - each, 1,250 shp (
Single source1 × Pratt & Whitney Canada PT6T-3D Twin-Pac or PT6T-3DF Twin-Pac coupled turboshaft engine - each, 1,250 shp (930 kW)[source]
CH-46E · 2 × General Electric T58-GE-16 turboshaft engines, 1,870 shp ( ) each
Single source2 × General Electric T58-GE-16 turboshaft engines, 1,870 shp (1,390 kW) each[source]
Bars compare reported quantities only. A larger figure does not make a system better; configurations and test conditions differ.
| Primary users | Japan Ground Self Defence Force See Operators for others[source] | United States Marine Corps (historical) United States Navy (historical) Japan Self-Defense Forces (historical)[source] |
|---|
| Number built | 1,300+[source] | H-46: 524[source] |
|---|
| Manufactured | 1979–present[source] | 1962–1971[source] |
|---|
| Introduction date | 1981 ( 1981 )[source] | 1964[source] |
|---|
| First flight | August 1979 ( 1979-08 )[source] | 22 April 1958 (V-107)[source] |
|---|
| Developed from | Bell 212[source] | — |
|---|
| Variant | Bell CH-146 Griffon[source] | — |
|---|
| Capacity | up to 13 passengers, maximum external load of almost 6,614 lb (3,000 kg)[source] | 24 troops or 15 stretchers and two attendants or 7,000 lb (3,200 kg)[source] |
|---|
| Fuselage length | 43 ft (13 m)[source] | — |
|---|
| Blade sections | root: Boeing VR-7; tip: Wortmann FX 71-H-080[source] | — |
|---|
| Main rotor area | 1,662 sq ft (154.4 m 2 )[source] | 3,926.99 sq ft (364.829 m 2 )[source] |
|---|
| Power/mass | 0.2663 hp/lb (0.4378 kW/kg)[source] | 0.215 hp/lb (0.353 kW/kg)[source] |
|---|
| Status | — | In limited service[source] |
|---|
| Retired | — | 2004 (US Navy) 2015 (US Marine Corps)[source] |
|---|
| Developed into | — | Boeing CH-47 Chinook Boeing Model 360[source] |
|---|
| Fuel capacity | — | 350 US gal (290 imp gal; 1,300 L) internal[source] |
|---|
| Guns | — | Two door-mounted 0.5 in (12.7 mm) GAU-15/A machine guns (optional), one ramp-mounted 7.62 mm (0.30 in) M240D machine gun (optional)[source] |
|---|
| Rotor blade section | — | root: Boeing VR-7; tip: Boeing VR-8[source] |
|---|
| Hover ceiling IGE | — | 9,500 ft (2,900 m)[source] |
|---|
| Hover ceiling OGE | — | 5,750 ft (1,750 m)[source] |
|---|
| Disk loading | — | 4.43 lb/sq ft (21.6 kg/m 2 )[source] |
|---|
Maximum take-off; CH-46E · Max takeoff weight
Single source