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]
Length
Single sourceConfiguration
| Specification | Enstrom F-28 | HAL Dhruv |
|---|---|---|
| Crew | one[source] | Two pilots[source] |
| Type | Light helicopter[source] | Utility helicopter[source] |
| Manufacturer | Enstrom Helicopter Corporation[source] | Hindustan Aeronautics Limited[source] |
| Manufactured | 1965-present[source] | 1992–present[source] |
15.87 m (52 ft 1 in)[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]
2 × Turbomeca TM 333 -2B2 turboshaft (1,082 shp) each (Mk I and II)
Single source2 × Turbomeca TM 333 -2B2 turboshaft , 807 kW (1,082 shp) each (Mk I and II)[source]
underslung (Mk II)
Single source1,500 kg (3,300 lb) underslung (Mk II)[source]
Bars compare reported quantities only. A larger figure does not make a system better; configurations and test conditions differ.
| Introduction date | 1965[source] | March 2002[source] |
|---|
| Variants | Enstrom TH180 Spitfire Mark I[source] | — |
|---|
| Developed into | Enstrom 480[source] | HAL Prachand[source] |
|---|
| Capacity | two passengers[source] | 12 armed troops or 14 passengers[source] |
|---|
| Main rotor area | 804 sq ft (74.7 m 2 ) NACA 0013.5[source] | 136.85 m 2 (1,473.0 sq ft)[source] |
|---|
| Country of origin | Vereinigte Staaten[source]Country of design · Entwurfsland | — |
|---|
| National origin | — | India[source] |
|---|
| Designer | — | Rotary Wing Research and Design Center[source] |
|---|
| Status | — | In service[source] |
|---|
| Primary users | — | Indian Army Indian Air Force Indian Navy See Operators[source] |
|---|
| Number built | — | 400+ (January 2024)[source] |
|---|
| First flight | — | 20 August 1992[source] |
|---|
| Variant | — | HAL Rudra[source] |
|---|
| Fuel capacity | — | 1,055 kg (2,326 lb)[source] |
|---|
| Never exceed speed | — | 291 km/h (181 mph, 157 kn) for Mk III[source] |
|---|
| g limits | — | 3.5[source] |
|---|
| Disk loading | — | 40.19 kg/m 2 (8.23 lb/sq ft)[source] |
|---|
| Reported operators | — |
|
|---|