FANDOM

278,248 Pages

For an overview of the whole Huey family of aircraft see Bell Huey{|class="infobox " style="float: right; clear: right; width: 315px; border-spacing: 2px; text-align: left; font-size: 90%;"

! colspan="2" style="text-align: center; font-size: large; padding-bottom: 0.3em;" | Bell 412 |-

| colspan="2" style="text-align: center; font-size: 90%; line-height: 1.5em;" |
N301FD.jpg

|- |colspan="2" style="border-bottom: 1px solid #aaa;text-align:center;" |A Bell 412EP of the Los Angeles City Fire Department Air Operations Squadron |-


! Role | Multipurpose Utility helicopter |- ! National origin | United States / Canada |- ! Manufacturer | Bell Helicopter |-



! Introduction | 1981 |-

! Status | In service |- ! Primary users | Royal Air Force
See Operators for others |- ! Produced | 1979-present |- ! Number built | over 869 |-


! Developed from | Bell 212 |- ! Variants | Bell CH-146 Griffon |-

|}

The Bell 412 is a utility helicopter manufactured by Bell Helicopter. It is a development of the Bell 212 with the major difference being the composite four-blade main rotor.

Design and developmentEdit

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 optional seating arrangements. 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. In 2013 Bell introduced the 412EPI which includes an electronic engine control (a.k.a. FADEC) for a PT6T-9 engine upgrade, and a glass cockpit display system similar to the Bell model 429.[citation needed] Also featured is a Garmin touch-screen navigation system, and the BLR Strake and Fast Fin upgades for improved hover performance.[citation needed] Over 700 Model 412s (including 260 by AgustaWestland) have been built.[2]

VariantsEdit

Bell 412
Standard Model with P&WC PT6T-3B
Bell 412SP
Special Performance version with P&WC PT6T-3BF engines
Bell 412HP
High performance version with P&WC PT6T-3BG or -3D engines
Bell 412EP
Enhanced performance version with P&WC PT6T-3DF engines
Bell 412EPI
Glass cockpit version with P&WC PT6T-9 electronic controlled engines
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 license in Italy by Agusta.[3]
Agusta-Bell AB 412EP
Italian-built version of the Bell 412EP.[3]
Agusta-Bell AB 412 Grifone
Military utility transport version, built under licence in Italy by Agusta.[3]
Agusta-Bell AB 412 CRESO
Italian-built version, fitted with a ground surveillance radar.
NBell 412
IPTN's licensed product of Bell 412[3]

OperatorsEdit

The Bell 412 is used by private and commercial operators, it is particularly popular in the oil industries, military and for law enforcement use.

Bell 412 FESA

Bell 412 (VH-NSP) of the Fire and Emergency Services Authority of Western Australia operated by CHC Helicopter

Norwegian military Bell 412SP helicopters

Norwegian Bell 412SP helicopters taking part in the NATO exercise Strong Resolve 2002

PL Bell 412HP Polish government

Polish Bell 412HP

Doe-412-N411DE-070719-07-16

U.S. Department of Energy 412 at Mojave Airport

File:RAC Rescue 1 - Bell 412EP.JPG
Bell 412EP Griffin HT1 of the RAF at RIAT 2010 arp

Bell 412EP Griffin HT1 helicopter of the Royal Air Force Defence Helicopter Flying School hover taxis to the runway at RIAT 2010

Military operatorsEdit

Flag of Algeria.svg Algeria
Flag of Argentina.svg Argentina
Flag of Botswana.svg Botswana
Flag of Cameroon.svg Cameroon
Flag of Canada.svg Canada
Flag of Chile.svg Chile
Flag of Colombia.svg Colombia
Flag of the Dominican Republic.svg Dominican Republic
Flag of El Salvador.svg El Salvador
Flag of Eritrea.svg Eritrea
Flag of Gabon.svg Gabon
Flag of Ghana.svg Ghana
Flag of Honduras.svg Honduras
Flag of Indonesia.svg Indonesia
Flag of Italy.svg Italy
Flag of Jamaica.svg Jamaica
Flag of Lesotho.svg Lesotho
Flag of Mexico.svg Mexico
Flag of the Netherlands.svg Netherlands
Flag of Norway.svg Norway
Flag of Pakistan.svg Pakistan
Flag of Panama.svg Panama
Flag of Peru.svg Peru
Flag of the Philippines.svg Philippines
Flag of Poland.svg Poland
Flag of Saudi Arabia.svg Saudi Arabia
Flag of Slovenia.svg Slovenia
Flag of South Korea.svg South Korea:
Flag of Sri Lanka.svg Sri Lanka:
Flag of Thailand.svg Thailand
Flag of Turkey.svg Turkey
Flag of Uganda.svg Uganda
Flag of the United Arab Emirates.svg United Arab Emirates
Flag of the United Kingdom.svg United Kingdom
Flag of Venezuela.svg Venezuela
Flag of Zimbabwe.svg Zimbabwe

Governmental operatorsEdit

Flag of Australia.svg Australia

Flag of Brazil.svg Brazil
Flag of the Czech Republic.svg Czech Republic
Flag of Italy.svg Italy
United States

Incidents and accidentsEdit

On April 4, 1991, a Bell 412 collided with a small plane carrying United States Senator H. John Heinz III, which killed the senator.

On February 6, 2008, a Bell 412 crashed due to a malfunction, killing Major General Javed Sultan, the commanding officer for Kohat garrison, along with two brigadiers and five other military personnel in South Waziristan Agency, Pakistan.[28][29]

On April 7, 2009, a Bell 412EP presidential helicopter operated by the Philippine Air Force crashed in bad weather on the slopes of Mount Pulag in Tinoc, Ifugao on a flight from Loakan Airport to Lagawe. All eight on board the helicopter died, including four key aides of President Gloria Macapagal-Arroyo.[30][31]

On November 22, 2010, a Bell 412 belonging to the Cameroon defense forces crashed en route from Douala to the country's capital Yaounde.[32] According to government sources, the aircraft had 3 crew and 2 passengers. There was one survivor, retired Israeli Special Forces colonel Abraham Avir Silvan who worked as a consultant to the Cameroon government.[citation needed]

On August 3, 2011, a Bell 412 carrying 10 passengers crashed shortly after it took off from Manado, Indonesia at 2:30 p.m. local time. All the passengers worked for Newcrest Mining. The Bell 412 was bound for the Gosowong gold mine on the nearby island of Halmahera. There was a lone survivor, but he died later. Bad weather was blamed for the crash.[citation needed]

Specifications (412EP)Edit

Bell 412 Line Drawing
Bell 412 transmission and head

Rotor head and transmission of a Bell 412

Data from International Directory of Civil Aircraft,[33] Bell 412EP Product Specifications[34]

General characteristics
  • Crew: 1-2 pilots
  • Capacity: up to 13 passengers, maximum external load of 4,500 lb (2,040 kg)
  • Length: 56 ft 1 in (17.1 m)
  • Rotor diameter: 46 ft (14.0 m)
  • Height: 15 ft (4.6 m)
  • Disc area: 1,662 ft² (154.4 m²)
  • Empty weight: 6,789 lb (3,079 kg)
  • Max. takeoff weight: 11,900 lb (5,397 kg)
  • Powerplant: 2 × Pratt & Whitney Canada PT6T-3BE Twin-Pac turboshafts, 900 shp (671 kW) each
  • Fuselage length: 43 ft (13.1 m)

Performance

  • Maximum speed: 140 knots (161 mph, 259 km/h)
  • Cruise speed: 122 knots (140 mph, 226 km/h)
  • Range: 402 nmi (463 mi, 745 km)
  • Service ceiling: 20,000 ft (6,096 m)
  • Rate of climb: 1,350 ft/min (6.86 m/s)
  • Power/mass: 0.2663 hp/lb (437 W/kg)

See alsoEdit

ReferencesEdit

  1. 1.0 1.1 Bell 412. Airliners.net
  2. Bell/Agusta Bell 412 – Medium Transport Helicopter, USA/Italy, Aerospace-Technology.com
  3. 3.0 3.1 3.2 3.3 Model 212 Twin Huey: USN-USMC UH-1N / Model 412. Vectorsite.net, 1 December 2007.
  4. 4.00 4.01 4.02 4.03 4.04 4.05 4.06 4.07 4.08 4.09 4.10 4.11 4.12 4.13 4.14 4.15 4.16 4.17 4.18 4.19 4.20 4.21 4.22 4.23 4.24 4.25 4.26 4.27 4.28 4.29 4.30 4.31 "World Air Forces 2013". Flightglobal Insight. 2013. http://www.flightglobal.com/airspace/media/reports_pdf/emptys/101015/world-air-forces-2013.pdf. Retrieved 17 March 2013. 
  5. Argentina; MoD orders new and used Bell-412 helicopter - Dmilt.com, May 16, 2013
  6. 6.0 6.1 6.2 6.3 "WORLD AIR FORCES 2011/12". Flightglobal Insight. 2013. http://www.flightglobal.com/airspace/media/reports_pdf/emptys/90190/world-air-forces-2011-2012.pdf. Retrieved 17 March 2013. 
  7. "Defense New Indonesia". armyrecognition.com. http://www.armyrecognition.com/march_2012_new_army_military_defence_industry/indonesian_army_signed_a_number_of_defense_contracts_with_local_manufacturers_1003122.html. Retrieved 17-March-2013. 
  8. Hoyle Flight International 13–19 December 2011, p. 45.
  9. "PAF Home". http://www.paf.mil.ph/aircraft_gallery.html. Retrieved 28-December-2012. 
  10. "Introduction (Coast guard, Korea, South), Coast guard". janes.com. http://articles.janes.com/articles/Janes-Fighting-Ships/Introduction-Coast-guard-Korea-South.html. Retrieved 17-February-2013. 
  11. "South Korean Coast Guard Bell 412EP". http://www.airliners.net/photo/South-Korea--/Bell-412EP/1866773/L/&sid=53e260cba6c6cb9b9dddfb2358f533d3. Retrieved 17-February-2013. 
  12. "Turkey And Georgia Conducted A Naval Exercise". http://turkishnavy.net/tag/turkish-coast-guard/. Retrieved 29-December-2012. 
  13. "Bolivarian Armada of Venezuela". ©Copyright 2012 helis.com. http://www.helis.com/database/org/ve_venezuelan_navy/. Retrieved 28-December-2012. 
  14. "Air Ambulance Helicopters - Ambulance Victoria". ©Copyright 2013 Ambulance Victoria. http://www.ambulance.vic.gov.au/Paramedics/Our-Vehicles/Air-ambulance-helicopter.html. Retrieved 25-March-2013. 
  15. "Queenslanders Gov.t Fleet". qld.gov.au. http://www.emergency.qld.gov.au/aviation/aircraft/. Retrieved 10-April-2013. 
  16. "PF tem mais dois helicópteros que não levantam voo há quase dois anos". CorreioBraziliense.com.br. http://www.correiobraziliense.com.br/app/noticia/brasil/2013/09/13/interna_brasil,387933/pf-tem-mais-dois-helicopteros-que-nao-levantam-voo-ha-quase-dois-anos.shtml. Retrieved 11-November-2013. 
  17. "Czech-Republic Police". ©Copyright 2012 Helis.com. http://www.helis.com/database/modelorg/1607/. Retrieved 29-December-2012. 
  18. "Agusta AB-412 in Carabinieri". http://www.helis.com/database/modelorg/573/. Retrieved 01-January-2013. 
  19. "AB-412 Guardia di Finanza". http://www.helis.com/database/modelorg/676/. Retrieved 01-January-2013. 
  20. "Delaware Marks 40 Years of Service". © Copyright 2010 by the Airborne Law Enforcement Association. http://www.alea.org/public/newsletters/10_11/index.htm. Retrieved 30-December-2012. 
  21. "LAFD Air Ops". http://lafd.org/airops.htm. Retrieved 30-December-2012. 
  22. "L.A. County Fire". http://www.fire.lacounty.gov/AirWildland/AirWildlandAirOps.asp. Retrieved 30-December-2012. 
  23. "Miami-Dade-Fire-Rescue". © 2012 Miami-Dade County.gov. http://www.miamidade.gov/fire/about-special-air-rescue.asp. Retrieved 30-December-2012. 
  24. "NYPD Bell 412". ©Copyright 2012 Helis.com. http://www.helis.com/database/news/b412_nypd_2012/. Retrieved 30-December-2012. 
  25. "Orange County Fire Authority's New Bell 412 Fire and Rescue Helicopters". ©Copyright 2012 FDNNTV.com. http://fdnntv.com/news.asp_Q_articleID_E_8631_A_title_E_Orange_County_Fire_Authority%27s_New_. Retrieved 30-December-2012. 
  26. "San-Diego-Fire signs for Bell-412". 2012 Copyright Shephard Press Limited. http://www.shephardmedia.com/news/rotorhub/san-diego-fire-rescue-sign-for-bell-412-/. Retrieved 28-December-2012. 
  27. "Bald Eagle Rescue is a team effort". http://www.dnr.state.md.us/dnrnews/pressrelease2002/051602.html. Retrieved 31-December-2012. 
  28. "Kohat GOC, six other officers die in copter crash: Technical fault caused accident: ISPR". http://archives.dawn.com/2008/02/07/top1.htm. Retrieved 15 June 2013. 
  29. "General killed in Pakistan crash". http://news.bbc.co.uk/2/hi/south_asia/7230496.stm. Retrieved 2013-03-18. 
  30. Missing govt chopper supposed to return due to bad weather
  31. No survivors in chopper crash
  32. [1]
  33. Frawley, Gerald. The International Directory of Civil Aircraft, 2003/2004, p. 45. Aerospace Publications, 2003. ISBN 1-875671-58-7.
  34. [2]. Bell Helicopter, January 2006.
  • Hoyle, Craig. "World Air Forces Directory". Flight International, Vol. 180 No. 5321, 13–19 December 2011. pp. 26–52.

External linksEdit

This page uses Creative Commons Licensed content from Wikipedia (view authors).
Community content is available under CC-BY-SA unless otherwise noted.