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]
S-70i · from forward tip main rotor to rear tip tail rotor
Configuration
| Specification | Bell 412 | Sikorsky S-70 |
|---|---|---|
| Type | Multipurpose utility helicopter[source] | Medium-lift transport/ utility helicopter[source] |
| National origin | United States / Canada[source] | United States[source] |
| Manufacturer | Bell Helicopter[source] | Sikorsky Aircraft[source] |
| Primary users | Japan Ground Self Defence Force See Operators for others[source] | U.S. Customs and Border Protection U.S. Drug Enforcement Administration See Operators section for others |
64 ft 10 in (19.76 m) from forward tip main rotor to rear tip tail rotor[source]
S-70i · between tips of tail wings
Single source14 ft 4 in (4.37 m) between tips of tail wings[source]
Cruise; 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; S-70i · at maximum cruise (standard day, sea level)
Single sourceMaximum; S-70i · Maximum speed
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]
S-70i · 2 × General Electric T700-GE-701D turboshaft engines, 1,940 shp ( ) each
Single source2 × General Electric T700-GE-701D turboshaft engines, 1,940 shp (1,450 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] | 1970s–present[source] |
|---|
| Introduction date | 1981 ( 1981 )[source] | 1979[source] |
|---|
| First flight | August 1979 ( 1979-08 )[source] | October 1974[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] | 11 foldable seats for troops (+12th seat quick install option) / 6 stretchers / 9,000 lb (4,082 kg) external slung load[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] | 2,262.33 sq ft (210.177 m 2 )[source] |
|---|
| Power/mass | 0.2663 hp/lb (0.4378 kW/kg)[source] | — |
|---|
| Status | — | In service[source] |
|---|
| Variants | — | Sikorsky UH-60 Black Hawk Sikorsky SH-60 Seahawk Sikorsky HH-60 Pave Hawk Sikorsky MH-60 Jayhawk Mitsubishi H-60[source] |
|---|
| Developed into | — | Sikorsky S-92[source] |
|---|
| Fuel capacity | — | 360 US gal (300 imp gal; 1,363 L)[source] |
|---|
| Blade section | — | - root: SC1095/SC1095R8; tip: Sikorsky SC1095[source] |
|---|
| Specific fuel consumption | — | 0.462 lb/hp/h (0.0781 kg/kW/ks)[source] |
|---|
Maximum take-off; S-70i · or
Single sourceMaximum take-off; S-70i · with external load
Single source