Credit
Jan Hrdonka · CC BY-SA 4.0 · Resized · CC BY-SA 4.0 · Source ↗ · Modified
FORCETALLY
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At a glance
Measured figures
Mi-4A · Length
Single source16.8 m (55 ft 1 in)[source]
S-92 · Length
Single sourceConfiguration
| Specification | Mil Mi-4 | Sikorsky S-92 |
|---|---|---|
| Type | Transport helicopter[source] | Medium-lift transport/utility helicopter[source] |
| Manufacturer | Mil Moscow Helicopter Plant[source] | Sikorsky Aircraft[source] |
| Status | Limited Service; North Korean Air Force[source] | In service[source] |
| Primary users | Soviet Air Force Indian Air Force Polish Air Force Royal Afghan Air Force[source] | CHC Helicopter Petroleum Helicopters International Bristow Helicopters Cougar Helicopters |
68 ft 6 in (20.88 m)[source]
S-92 · fuselage
Single source17 ft 3 in (5.26 m) fuselage[source]
Empty; Mi-4A · Empty weight
Single sourceGross; Mi-4A · Gross weight
Single sourceMaximum take-off; Mi-4A · Max takeoff weight
Single source5,100 kg (11,244 lb)[source]
7,150 kg (15,763 lb)[source]
7,550 kg (16,645 lb)[source]
Empty; S-92 · Empty weight
Single sourceGross; S-92 · Gross weight
Single sourceMi-4A · 1 × Shvetsov ASh-82V 14-cylinder air-cooled radial piston engine
Single source1 × Shvetsov ASh-82V 14-cylinder air-cooled radial piston engine, 1,250 kW (1,680 hp)[source]
S-92 · 2 × General Electric CT7-8A turboshaft engines, 2,520 shp ( ) each
Single source2 × General Electric CT7-8A turboshaft engines, 2,520 shp (1,880 kW) each[source]
Bars compare reported quantities only. A larger figure does not make a system better; configurations and test conditions differ.
| Number built | over 4,000 including Z-5s[source] | at least 300[source] |
|---|
| Manufactured | 1951–1979[source] | 1998–present[source] |
|---|
| Introduction date | 1953[source] | 2004[source] |
|---|
| First flight | 3 June 1952[source] | December 23, 1998[source] |
|---|
| Variant | Harbin Z-5[source] | — |
|---|
| Capacity | 16 troops or up to 1,600 kg (3,527 lb) of cargo[source] | 19 passengers[source] |
|---|
| Main rotor area | 346.4 m 2 (3,729 sq ft)[source] | 2,492.3 sq ft (231.54 m 2 )[source] |
|---|
| Disk loading | 41 kg/m 2 (8.4 lb/sq ft)[source] | 9.8 lb/sq ft (48 kg/m 2 )[source] |
|---|
| Power/mass | 0.21 kW/kg (0.13 hp/lb)[source] | 0.23 hp/lb (0.38 kW/kg)[source] |
|---|
| National origin | Soviet Union[source] | United States[source] |
|---|
| Country of origin | Soviet Union[source] | — |
|---|
| Developed from | — | Sikorsky S-70[source] |
|---|
| Variants | — | Sikorsky CH-148 Cyclone Sikorsky VH-92[source] |
|---|
| Cabin dimensions | — | 20 ft (6 m) long by 6.6 ft (2 m) tall[source] |
|---|
| Blade section | — | - root: Sikorsky SC2110; tip: Sikorsky SSC-A09[source] |
|---|
Maximum take-off; S-92 · Max takeoff weight
Single source