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]
S-64E · Length
Single sourceConfiguration
| Specification | Bell 412 | Sikorsky S-64 Skycrane |
|---|---|---|
| Type | Multipurpose utility helicopter[source] | Aerial crane[source] |
| National origin | United States / Canada[source] | United States[source] |
| Manufacturer | Bell Helicopter[source] | Sikorsky Aircraft Erickson Inc.[source] |
| Primary users | Japan Ground Self Defence Force See Operators for others[source] | — |
70 ft 3 in (21.41 m)[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]
S-64E · 2 × Pratt & Whitney JFTD12-4A (T73-P-1) turboshaft engines, 4,500 shp ( ) each
Single source2 × Pratt & Whitney JFTD12-4A (T73-P-1) turboshaft engines, 4,500 shp (3,400 kW) each[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.
| Number built | 1,300+[source] | 100[source] |
|---|
| Manufactured | 1979–present[source] | — |
|---|
| Introduction date | 1981 ( 1981 )[source] | — |
|---|
| First flight | August 1979 ( 1979-08 )[source] | 9 May 1962[source] |
|---|
| Developed from | Bell 212[source] | Sikorsky CH-54 Tarhe[source] |
|---|
| Variant | Bell CH-146 Griffon[source] | — |
|---|
| Capacity | up to 13 passengers, maximum external load of almost 6,614 lb (3,000 kg)[source] | up to five total occupants / 20,000 lb (9,100 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] | 4,070 sq ft (378 m 2 )[source] |
|---|
| Power/mass | 0.2663 hp/lb (0.4378 kW/kg)[source] | — |
|---|
| Status | — | In service[source] |
|---|
| Primary user | — | Erickson Inc.[source] |
|---|
| Never exceed speed | — | 115 kn (132 mph, 213 km/h)[source] |
|---|
| Hover ceiling IGE S-64E | — | 10,600 ft (3,200 m)[source] |
|---|
| Hover ceiling IGE S-64A | — | 9,700 ft (3,000 m)[source] |
|---|