Bell 47 is an American light helicopter . Designed by Bell Designer Arthur Young based on the Bell 30 . Received the first flight certificate in the USA in 1946 . It was widely used during the war in Korea (1950-1953) as a search and rescue and communications helicopter. Produced in various civilian and military versions (more than 30 options). Depending on the year of manufacture and modification, it was produced with different types of fuselage and cockpit, had a passenger capacity of 1 to 3 people, was equipped with various versions of piston engines (200–305 hp). It remained the best helicopter of its class until the late 1960s. The helicopter remained in serial production until 1973 , in total more than 5600 aircraft were produced. As of 2011, 1,068 Bell 47 family helicopters were registered in the U.S. Aviation Administration (FAA) registry.
| Bell 47 / H-13 Sioux | |
|---|---|
 Bell 47g | |
| Type of | light helicopter |
| Developer |  Bell helicopter |
| Manufacturer | Bell (USA)  Agusta ( Italy ) |
| Chief Designer | Arthur M. Young |
| The first flight | December 8, 1945 |
| Start of operation | 1946 year |
| Operators | U.S. Army UK Army |
| Years of production | 1946 - 1973 |
| Units produced | 5,600 |
| Base model | Bell 30 |
Content
- 1 Performance characteristics
- 2 Options and modifications
- 3 Operating countries
- 4 notes
- 5 Links
Performance Specifications
The specifications given correspond to the HTL-4 modification. Data Source: DEPARTMENT OF THE NAVY - NAVAL HISTORICAL CENTER [1]
- Specifications
- Crew : 1 pilot
- Passenger capacity: 1.2 or 3 passengers (depending on version), or 2 wounded on a stretcher
- Length : 12.56 m
- Fuselage length: 9.2 m
- Rotor Diameter: 10.71 m
- Tail rotor diameter: 1.73 m
- Height : 2,794 m (to the rotor hub)
- Rotor swept area: 89.65 m²
- Wing profile : NACA.0017 - root, NACA.0011 - wingtip (rotor blade)
- Chassis base: 2,286 m
- Track track: 1,784 m
- Empty weight: 701 kg
- Curb weight: 798 kg
- Normal take-off weight: 963 kg (training option, 1 student)
- Maximum take-off weight : 1066 kg
- Fuel tank capacity: 109.8 L
- The mass of fuel in internal tanks: 78.9 kg
- Powerplant : 1 × Piston Aircooled Motors O-335-5
- Engine power: 1 × 200 hp (1 × 147 kW)
- Flight characteristics
- Maximum speed:
- by the ground: 148 km / h
- at an altitude of 579 m: 152 km / h
- Cruising speed : 120 km / h
- Practical range: 194.5 km
- Flight Duration: 1.9 hours
- Practical ceiling : 3840 m
- Static ceiling : 457 m (outside the influence of the earth)
- Rate of climb : 5 m / s
- Vertical climb: 1.73 m / s
- Disc load: 10.74 kg / m² (with normal take-off weight)
- Thrust -weight ratio: 152 W / kg (with normal take-off weight)
Options and Modifications
- Bell 47A - option with the Franklin O-335-1 engine with a capacity of 157 liters. from.
- Bell 47E - option with the Franklin 6V4-200-C32 engine with a capacity of 200 liters. from.
- Bell 47G - triple passenger version of the helicopter
- Bell 47J Ranger - a four-seater passenger version of the helicopter with an Avco Lycoming VO-435 engine
- Bell 47K - training helicopter (double version Bell 47J)
- Kawasaki KH-4 - an option licensed by the Japanese company Kawasaki Heavy Industries
- "LEV -1 " - Bell 47G-4 [2] with the GTD-350 engine, developed by Ukroboronservis Group of Companies, a demonstration model was presented on October 5, 2015 [3] [4] [5]
In addition, the helicopter was manufactured under license by the Italian company Agusta from 1954 to 1976 . and the British "Westland Aircraft".
Operator countries
|
|
|
Notes
- ↑ Standard Aircraft Characteristics. HTL-4 . - Published by Direction of The Commander of The Naval Air Systems Command. - (NAVAER 1335B).
- ↑ Charles Forrester. Ukraine debuts Lev-1 helicopter as upgrade projects continue Archived on August 21, 2016. // "Jane's Defense Industry" October 7, 2015
- ↑ The power structures of Ukraine were presented with the new LEV-1 helicopter (inaccessible link) // Ukroboronprom official site on October 5, 2015
- ↑ “Lev-1” evacuated of the wounded man’s death // newspaper “People’s Army” vіd 21 Zhovtnya 2015
- ↑ New helicopter presented in Ukraine - Korrespondent.net
- ↑ Bell 47G-2
- ↑ International Institute for Strategic Studies. The Military Balance 2016 / James Hackett. - London: Taylor & Francis, 2016 .-- S. 452. - ISBN 9781857438352 .
- ↑ International Institute for Strategic Studies. The Military Balance 2016 / James Hackett. - London: Taylor & Francis, 2016 .-- S. 477. - ISBN 9781857438352 .
- ↑ International Institute for Strategic Studies. The Military Balance 2016 / James Hackett. - London: Taylor & Francis, 2016 .-- S. 473. - ISBN 9781857438352 .
- ↑ International Institute for Strategic Studies. The Military Balance 2016 / James Hackett. - London: Taylor & Francis, 2016 .-- S. 205 .-- ISBN 9781857438352 .