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]
HH-3E · Length
Single sourceConfiguration
| Specification | Bell 412 | Sikorsky S-61R |
|---|---|---|
| Type | Multipurpose utility helicopter[source] | Medium-lift transport/ Search and Rescue (SAR) helicopter[source] |
| National origin | United States / Canada[source] | — |
| Manufacturer | Bell Helicopter[source] | Sikorsky Agusta[source] |
| Primary users | Japan Ground Self Defence Force See Operators for others[source] | United States Air Force (Historical) United States Coast Guard (Historical) Italian Air Force (Historical) Tunisian Air Force[source] |
73 ft (22 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]
HH-3E · 2 × General Electric T58-GE-10 turboshaft engines, 1,400 shp ( ) each
Single source2 × General Electric T58-GE-10 turboshaft engines, 1,400 shp (1,000 kW) each[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] | — |
|---|
| Manufactured | 1979–present[source] | 1963–1970s[source] |
|---|
| Introduction date | 1981 ( 1981 )[source] | 1965[source] |
|---|
| First flight | August 1979 ( 1979-08 )[source] | 1963[source] |
|---|
| Developed from | Bell 212[source] | Sikorsky SH-3 Sea King[source] |
|---|
| Variant | Bell CH-146 Griffon[source] | — |
|---|
| Capacity | up to 13 passengers, maximum external load of almost 6,614 lb (3,000 kg)[source] | 28 pax / 6,500 lb (2,948 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] | 3,019 sq ft (280.5 m 2 ) 5-bladed main rotor; blade section NACA 0012[source] |
|---|
| Power/mass | 0.2663 hp/lb (0.4378 kW/kg)[source] | — |
|---|
| Status | — | In service[source] |
|---|
| Fuel capacity | — | 683 US gal (569 imp gal; 2,590 L)[source] |
|---|
| Guns | — | Door guns on some variants (For information on American equipment, see U.S. Helicopter Armament Subsystems, S-61R )[source] |
|---|
| Disk loading | — | 7.3 lb/sq ft (36 kg/m 2 )[source] |
|---|
| Country of origin | — | États-Unis[source]Design origin explicitly attributed in article text |
|---|