Credit
Airwolfhound from Hertfordshire, UK · CC BY-SA 2.0 · Resized · CC BY-SA 2.0 · Source ↗ · Modified
FORCETALLY
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At a glance
Measured figures
UH-1H · with rotors
Single source57 ft 9 + 5 ⁄ 8 in (17.618 m) with rotors[source]
F28F · Length
Single sourceConfiguration
| Specification | Bell UH-1 Iroquois | Enstrom F-28 |
|---|---|---|
| Type | Utility helicopter[source] | Light helicopter[source] |
| National origin | United States[source] | — |
| Manufacturer | Bell Helicopter[source] | Enstrom Helicopter Corporation[source] |
| Status | In service[source] | — |
| Primary users | United States Army (historical) Japan Ground Self-Defense Force Canadian Army See Operators section for others |
29 ft 3 in (8.92 m)[source]
UH-1H · over skids
Single source9 ft 6 + 1 ⁄ 2 in (2.908 m) (over skids)[source]
Empty; UH-1H · Empty weight
Single sourceGross; UH-1H · mission weight
Single sourceMaximum take-off; UH-1H · Max takeoff weight
Single source5,210 lb (2,363 kg)[source]
9,039 lb (4,100 kg) (mission weight)[source]
9,500 lb (4,309 kg)[source]
Empty; F28F · Empty weight
Single sourceMaximum take-off; F28F · Max takeoff weight
Single sourceCruise; UH-1H · (at 5,700 ft (1,700 m) at maximum takeoff weight)
Single sourceMaximum; UH-1H · at maximum takeoff weight; also Vne at this weight
Single source127 mph (204 km/h, 110 kn) (at maximum takeoff weight; also Vne at this weight)[source]
127 mph (204 km/h, 110 kn) (at 5,700 ft (1,700 m) at maximum takeoff weight)[source]
Cruise; F28F · econ cruise
Single sourceMaximum; F28F · Maximum speed
Single sourceUH-1H · 1 × Lycoming T53-L-13 turboshaft , 1,400 shp ( ) (limited to 1,100 shp (
Single sourceUH-1H · ) by transmission
Single source1 × Lycoming T53-L-13 turboshaft , 1,400 shp (1,000 kW) (limited to 1,100 shp (820 kW) by transmission)[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]
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.
| — |
| Number built | >16,000[source] | — |
|---|
| Manufactured | 1956–1987[source] | 1965-present[source] |
|---|
| Introduction date | 1959[source] | 1965[source] |
|---|
| First flight | 20 October 1956 (XH-40)[source] | — |
|---|
| Variants | Bell UH-1N Twin Huey Bell 204/205 Bell 212 Bell 214 Bell 412 Bell CH-146 Griffon Bell UH-1Y Venom[source] | Enstrom TH180 Spitfire Mark I[source] |
|---|
| Developed into | Bell 214ST Bell 533[source] | Enstrom 480[source] |
|---|
| Capacity | 3,880 pounds (1,760 kg) including 11–14 troops, 6 stretchers and attendant, or equivalent cargo[source] | two passengers[source] |
|---|
| Main rotor area | 1,809.56 sq ft (168.114 m 2 )[source] | 804 sq ft (74.7 m 2 ) NACA 0013.5[source] |
|---|
| Disk loading | 5.25 lb/sq ft (25.6 kg/m 2 )[source] | — |
|---|
| Power/mass | 0.1159 hp/lb (0.1905 kW/kg)[source] | — |
|---|
| Country of origin | — | Vereinigte Staaten[source]Country of design · Entwurfsland |
|---|