Credit
Sardaka · CC BY-SA 4.0 · Resized · CC BY-SA 4.0 · Source ↗ · Modified
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At a glance
Measured figures
Bell 412EP · including rotors
Single source56 ft 1 in (17.09 m) including rotors[source]
Bell 47G-3B · Length
Single sourceConfiguration
| Specification | Bell 412 | Bell 47 |
|---|---|---|
| Crew | one-two pilots[source] | 1 or 2[source] |
| Type | Multipurpose utility helicopter[source] | Multipurpose light helicopter[source] |
| National origin | United States / Canada[source] | United States[source] |
| Manufacturer | Bell Helicopter[source] | Bell Aircraft Bell Helicopter |
31 ft 7 in (9.63 m)[source]
Empty; Bell 412EP · Empty weight
Single sourceMaximum take-off; Bell 412EP · Max takeoff weight
Single source6,789 lb (3,079 kg)[source]
11,900 lb (5,398 kg)[source]
Empty; Bell 47G-3B · Empty weight
Single sourceMaximum take-off; Bell 47G-3B · Max takeoff weight
Single sourceBell 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]
Bell 47G-3B · 1 × Lycoming TVO-435-F1A six-cylinder vertically mounted horizontally-opposed air-cooled piston engine
Single source1 × Lycoming TVO-435-F1A six-cylinder vertically mounted horizontally-opposed air-cooled piston engine, 280 hp (210 kW)[source]
Bell 412EP · Service ceiling
Single source20,000 ft (6,100 m)[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 Army British Army[source] |
|---|
| Number built | 1,300+[source] | 5,600[source] |
|---|
| Manufactured | 1979–present[source] | 1946–1974[source] |
|---|
| Introduction date | 1981 ( 1981 )[source] | 1946[source] |
|---|
| First flight | August 1979 ( 1979-08 )[source] | December 8, 1945[source] |
|---|
| Developed from | Bell 212[source] | Bell 30[source] |
|---|
| Variant | Bell CH-146 Griffon[source] | — |
|---|
| Capacity | up to 13 passengers, maximum external load of almost 6,614 lb (3,000 kg)[source] | 1 passenger or 2 litters (1,057 lb (479 kg) payload)[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] | 1,085 sq ft (100.8 m 2 )[source] |
|---|
| Power/mass | 0.2663 hp/lb (0.4378 kW/kg)[source] | — |
|---|
| Designer | — | Arthur M. Young[source] |
|---|
| Variants | — | Bell H-13 Sioux Bell 47J Ranger Kawasaki KH-4[source] |
|---|