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]
W-3A · fuselage
Single sourceConfiguration
| Specification | Enstrom F-28 | PZL W-3 Sokół |
|---|---|---|
| Type | Light helicopter[source] | Multipurpose utility helicopter[source] |
| Manufacturer | Enstrom Helicopter Corporation[source] | PZL-Świdnik[source] |
| Manufactured | 1965-present[source] | 1985–2015[source] |
| Introduction date | 1965[source] | 1987 |
14.21 m (46 ft 7 in) fuselage[source]
F28F · 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]
W-3A · 2 × Pratt & Whitney Rzeszów PZL-10B turboshaft engines each
Single source2 × Pratt & Whitney Rzeszów PZL-10B turboshaft engines, 671 kW (900 hp) 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] | — |
|---|
| Developed into | Enstrom 480[source] | — |
|---|
| Capacity | two passengers[source] | 12 passengers or four stretcher cases and one attendant / 2,100 kg (4,630 lb) payload[source] |
|---|
| Main rotor area | 804 sq ft (74.7 m 2 ) NACA 0013.5[source] | 193.6 m 2 (2,084 sq ft) with NACA 23012M blade profile[source] |
|---|
| Country of origin | Vereinigte Staaten[source]Country of design · Entwurfsland | — |
|---|
| National origin | — | Poland[source] |
|---|
| Status | — | In service[source] |
|---|
| Primary users | — | Polish Armed Forces Czech Air Force Philippine Air Force Myanmar Air Force[source] |
|---|
| Number built | — | 149 (as of 2011)[source] |
|---|
| First flight | — | 16 November 1979[source] |
|---|
| Never exceed speed | — | 260 km/h (160 mph, 140 kn)[source] |
|---|