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]
Sikorsky S-76C++ · from tip of main rotor to tip of tail rotor
Configuration
| Specification | Bell 412 | Sikorsky S-76 |
|---|---|---|
| Crew | one-two pilots[source] | two[source] |
| Type | Multipurpose utility helicopter[source] | Utility helicopter[source] |
| National origin | United States / Canada[source] | United States[source] |
| Manufacturer | Bell Helicopter[source] | Sikorsky Aircraft[source] |
52 ft 6 in (16 m) from tip of main rotor to tip of tail rotor[source]
Sikorsky S-76C++ · at horizontal stabilizer
Single source10 ft 0 in (3.05 m) at horizontal stabilizer[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; Sikorsky S-76C++ · in utility configuration
Single sourceGross; Sikorsky S-76C++ · Gross weight
Single sourceCruise; Bell 412EP · Cruise speed
Single sourceMaximum; Bell 412EP · Maximum speed
Single source140 kn (160 mph, 260 km/h)[source]
122 kn (140 mph, 226 km/h)[source]
Cruise; Sikorsky S-76C++ · maximum cruise speed is the same as maximum speed
Single sourceMaximum; Sikorsky S-76C++ · at maximum takeoff weight at sea level in standard atmospheric conditions
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]
Sikorsky S-76C++ · 2 × Turbomeca Arriel 2S2 turboshaft, 922 shp ( ) each
Single source2 × Turbomeca Arriel 2S2 turboshaft, 922 shp (688 kW) each[source]
Bell 412EP · 1,350 ft/min (
Single source1,350 ft/min (6.9 m/s)[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] | Bristow Helicopters CHC Helicopter[source] |
|---|
| Number built | 1,300+[source] | 875[source] |
|---|
| Manufactured | 1979–present[source] | 1976–present[source] |
|---|
| Introduction date | 1981 ( 1981 )[source] | — |
|---|
| First flight | August 1979 ( 1979-08 )[source] | 13 March 1977 ( 1977-03-13 )[source] |
|---|
| Developed from | Bell 212[source] | — |
|---|
| Variant | Bell CH-146 Griffon[source] | Sikorsky S-75[source] |
|---|
| Capacity | up to 13 passengers, maximum external load of almost 6,614 lb (3,000 kg)[source] | 13 passengers[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] | — |
|---|
| Power/mass | 0.2663 hp/lb (0.4378 kW/kg)[source] | — |
|---|
| Status | — | In Service[source] |
|---|
| Fuel capacity | — | 281 US gallons (1,064 liters), with 50 or 102 US gallons (189 or 386 liters) available in extra auxiliary tanks[source] |
|---|