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Bell 412
| Bell 412 | |
|---|---|
| Norwegian Bell 412SP helicopters taking part in the NATO exercise Strong Resolve 2002 | |
| Type | Multipurpose utility helicopter |
| Manufacturer | Bell Helicopter |
| Introduced | 1981 |
| Primary users | Royal Air Force Jamaica Defence Force Royal Thai Air Force |
| Developed from | Bell 212 |
| Variants | CH-146 Griffon |
The Bell 412 is a utility helicopter manufactured by Bell Helicopter Textron. It is a further development of the Bell 212 model, the major difference being the composite four-blade main rotor.
Contents
Development
The development began in the late 1970s with two Bell 212 being converted into 412 prototypes. An advanced four blade main rotor with a smaller diameter replaced the 212's two blade rotor. A Bell 412 prototype first flew in August 1979. The initial model was certified in January 1981 with the deliveries commencing in the same month.[1]
The 412 model was followed by the 412SP (Special Performance) version featuring larger fuel capacity, higher takeoff weight and more optional seating arrangement. In 1991, the 412HP (High Performance) variant with improved transmission replaced the SP version in production.[1] The current production version, 412EP (Enhanced Performance), is equipped with a dual digital automatic flight control system.
Over 700 Model 412s (including 260 by AgustaWestland) have been built and in operation.[2]
Variants
- Bell 412
- Utility transport helicopter.
- Bell 412EP
- Enhanced performance version.
- Bell 412HP
- High performance version.
- Bell 412SP
- Special performance version.
- Military 412
- Armed military version.
- CH-146 Griffon
- Utility transport helicopter for the Canadian Forces.
- Bell Griffin HT1
- Advanced training helicopter based on the Bell 412EP, operated by the RAF since 1997 as an advanced flying trainer. Operated by the Defence Helicopter Flying School at RAF Shawbury and the Search and Rescue Training Unit at RAF Valley.
- Bell Griffin HAR2
- Search and Rescue helicopter based on the Bell 412EP, operated by 84 Squadron RAF since 2003 at RAF Akrotiri in Cyprus.
- Agusta-Bell AB 412
- Civil utility transport version, built under licence in Italy by Agusta.
- Agusta-Bell AB 412EP
- Italian-built version of the Bell 412EP.
- Agusta-Bell AB 412 Grifone
- Military utility transport version, built under licence in Italy by Agusta.
- Agusta-Bell AB 412 CRESO
- Italian-built version, fitted with a ground surveillance radar.
- NBell 412
- IPTN's licensed product of Bell 412
Operators
Military operators
- Template:BHR
- Template:BAN
- Template:BOT
- Template:CAN
- Template:CHI
- Template:COL
- Template:CZE
- Template:ECU
- Template:ESA
- Template:FIN
- Template:JAM
- Template:HON
- Template:IDN
- Template:ITA
- Template:LES
- Template:MEX
- Template:NLD
- Template:NGA
- Template:NOR
- Template:PAK
- Template:PAN
- Template:PER
- Template:PHI
- Template:POL
- Template:SAU
- Template:SVK
- Template:SLO
- Template:KOR
- Template:SRI
- Template:SWE
- Template:THA: Royal Thai Air Force
- Template:UGA
- Template:ARE
- Template:UK
- Template:VEN
- Template:ZIM
Civilian and government operators
- Westpac Life Saver Rescue Helicopter Service
- Fire and Emergency Services Authority of Western Australia
- Department of Energy
- United States Park Police
- Los Angeles City Fire Department
- Los Angeles County Fire Department
- New York Police Department
- Miami-Dade County Fire Department
- Blackwater USA
Specifications (412EP)
This aircraft article is missing some (or all) of its specifications. If you have a source, you can help Wikipedia by adding them.General characteristics
- Crew: 2
- Capacity: 15
- Length: 41 ft 9 in (12.7 m)
- Rotor diameter: 46 ft (14 m)
- Height: 15 ft (4.6 m)
- Disc area: 1,662 ft² (154.4 m²)
- Empty weight: 6,759 lb (3,066 kg)
- Max takeoff weight: 11,900 lb (5,397 kg)
- Powerplant: 2× Pratt & Whitney Canada PT6T-3BE Turbo Twin-Pac turboshafts, 900 shp (671 kW) each
Performance
- Maximum speed: 140 knots (161 mph, 259 km/h)
- Range: 463 mi (745 km)
- Service ceiling: 20,000 ft (6,096 m)
- Power/mass: 0.2663 hp/lb (0.437 W/kg)
References
- ↑ 1.0 1.1 Bell 412 on Airliners.net
- ↑ Bell/Agusta Bell 412 – Medium Transport Helicopter, USA/Italy, Aerospace-Technology.com
External Links
- Bell 412 page on BellHelicopter.com
- Bell 412 page on airliners.net
- Bell / Agusta 412 page on aerospace-technology.com
- "Bahrain Requests 6 Bell 412", DefenseIndustryDaily.com
Related Content
Related development
Related lists
See also
Fighter aircraft: YFM-1 · P-39 · P-59 · P-63 · XP-77 · XP-83
Commercial Helicopters: 47 · 204 · 205 · 206 · 210 · 212 · 214 · 222 · 230 · 407 · 412 · 417 · 427 · 429 · 430
Military Helicopters: H-13 · UH-1 · 207 · 209 · AH-1 · 309 · YAH-63 · OH-58 · ARH-70
Tiltrotors: V-22 · BA609 · TR918 · QTR
Experimental aircraft: X-1 · X-2 · X-5 · X-20 X-22 · XV-3 · XV-15 · 533 ·
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| Records | Flight airspeed record · Flight distance record · Flight altitude record · Flight endurance record · Most produced aircraft |
