Credit
Original uploader was User:Ahunt at en:wikipedia · Public domain · Resized · Public domain · Source ↗ · Modified
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At a glance
Measured figures
F28F · Length
Single source29 ft 3 in (8.92 m)[source]
S-70i · from forward tip main rotor to rear tip tail rotor
Single sourceConfiguration
| Specification | Enstrom F-28 | Sikorsky S-70 |
|---|---|---|
| Type | Light helicopter[source] | Medium-lift transport/ utility helicopter[source] |
| Manufacturer | Enstrom Helicopter Corporation[source] | Sikorsky Aircraft[source] |
| Manufactured | 1965-present[source] | 1970s–present[source] |
| Introduction date | 1965[source] | 1979 |
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; F28F · econ cruise
Single sourceMaximum; F28F · Maximum speed
Single source97 kn (112 mph, 180 km/h)[source]
89 kn (102 mph, 165 km/h) (econ cruise)[source]
Cruise; S-70i · at maximum cruise (standard day, sea level)
Single sourceMaximum; S-70i · Maximum speed
Single sourceF28F · 1 × Lycoming HIO-360-F1AD four-cylinder, direct-drive, horizontally opposed, air-cooled, piston aircraft engine
Single source1 × Lycoming HIO-360-F1AD four-cylinder, direct-drive, horizontally opposed, air-cooled, piston aircraft engine, 225 hp (168 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]
F28F · Endurance
Single source3 hr 30 min[source]
Bars compare reported quantities only. A larger figure does not make a system better; configurations and test conditions differ.
| Variants | Enstrom TH180 Spitfire Mark I[source] | Sikorsky UH-60 Black Hawk Sikorsky SH-60 Seahawk Sikorsky HH-60 Pave Hawk Sikorsky MH-60 Jayhawk Mitsubishi H-60[source] |
|---|
| Developed into | Enstrom 480[source] | Sikorsky S-92[source] |
|---|
| Capacity | two passengers[source] | 11 foldable seats for troops (+12th seat quick install option) / 6 stretchers / 9,000 lb (4,082 kg) external slung load[source] |
|---|
| Main rotor area | 804 sq ft (74.7 m 2 ) NACA 0013.5[source] | 2,262.33 sq ft (210.177 m 2 )[source] |
|---|
| Country of origin | Vereinigte Staaten[source]Country of design · Entwurfsland | — |
|---|
| Status | — | In service[source] |
|---|
| Primary users | — | U.S. Customs and Border Protection U.S. Drug Enforcement Administration See Operators section for others[source] |
|---|
| First flight | — | October 1974[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] |
|---|
| National origin | — | United States[source] |
|---|
Maximum take-off; S-70i · or
Single sourceMaximum take-off; S-70i · with external load
Single source