Bell 412

From Wikipedia, the free encyclopedia

Bell 412
Norwegian Bell 412SP helicopters taking part in the NATO exercise Strong Resolve 2000
Type	Multipurpose utility helicopter
Manufacturer	Bell Helicopter Textron
Primary users	United States Marine Corps Canadian Forces United States Navy
Developed from	Bell 212
Variants	CH-146 Griffon

The Bell 412 is an 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 1 Development 2 Variants 3 Military operators 4 Specifications (412HP) 4.1 General characteristics 4.2 Performance 5 Related content

[edit] Development

The development began in the late 1970s and a converted Bell 212 flew first time in August 1979. The initial model was certified in January 1981 with the deliveries commencing in the same month. It was followed by the 412SP (Special Performance) version featuring larger fuel capacity, higher takeoff weight and more optional seating arrangement. In 1991 412HP (High Performance) variant with improved transmission replaced the former version. The current production version, 412EP (Enhanced Performance), is equipped with a dual digital automatic flight control system.

[edit] Variants

• 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 412 Grifone : Military utility transport version, built under licence in Italy by Agusta.
• NBell 412 : IPTN's licensed product of Bell 412

[edit] Military operators

•  Bahrain
•  Bangladesh
•  Botswana
•  Brazil: Brazilian Federal Police
•  Canada
•  Chile
•  Colombia
•  Czech Republic
•  Ecuador
•  El Salvador
•  Finland
•  Jamaica
•  Honduras
•  Indonesia
•  Iran
•  Italy
•  Lesotho
•  Mexico
•  Netherlands
•  Nigeria
•  Norway
•  Pakistan
•  Panama
•  Peru
•  Philippines
•  Poland
•  Saudi Arabia
•  Slovenia: Slovenian Armed Forces
•  Republic of Korea
•  Sri Lanka
•  Sweden
•  Uganda
•  United Arab Emirates
•  United Kingdom
•  United States
•  Venezuela
•  Zimbabwe

[edit] Specifications (412HP)

[edit] General characteristics

• Crew: 2
• Capacity: 15
• Length: 12.7 m (41 ft 9 in)
• Main rotor diameter: 14.02 m (46 ft 0 in)
• Height: 4.57 m (15 ft 0in)
• Main rotor area: 154.4 m² (1662 ft²)
• Empty: 3,066 kg (6,759 lb)
• Loaded: kg ( lb)
• Maximum Take-Off Weight: 5,397 kg (11,900 lb)
• Powerplant: 2x Pratt & Whitney Canada PT6T3BE Turbo Twin-Pac, 1,342 kW (1,800 shp)

[edit] Performance

• Maximum speed: 241 km/h (150 mph) 140kts @ sea level
• Range: 745 km (463 miles)
• Service ceiling: 6,096 m ( 20,000 ft)
• Rate of climb: m/min ( ft/min)
• Main rotor loading: kg/m² ( lb/ft²)
• Power/Mass: 0.437 kW/kg (0.2663 hp/lb)

[edit] Related content

Related development

• Bell 212
• Bell 214
• UH-1 Iroquois
• UH-1N Twin Huey
• UH-1Y Venom

Designation sequence

406 - 407 - 409 - 412 - 417 - 427 - 429 -

Related lists

• List of aircraft of the AOC
• List of civil aircraft
• List of active Canadian military aircraft
• List of active United Kingdom military aircraft

See also