Bell 407
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The Bell 407 is a four-blade, single-engine, civil utility helicopter. A derivative of the Bell 206L-4 LongRanger, the 407 uses the four-blade, soft-in-plane design rotor with composite hub developed for the United States Army's OH-58D Kiowa Warrior instead of the two-blade, semi-rigid, teetering rotor of the 206L-4.
Design and development
In 1993, Bell began the development of the New Light Aircraft as a replacement for its Model 206 series. The program resulted in the 407, a development of Bell's LongRanger.[1] A 206L-3 LongRanger was modified to serve as the 407 demonstrator.[1] The demonstrator used hardware for the 407 and added molded fairings to represent the 407's wider fuselage then under development.[1]
The demonstrator was first flown in 1994, and the 407 program was publicly announced at the Heli-Expo in Las Vegas, Nevada, in January 1995.[1][2] The first 407 prototype (C-GFOS) made its maiden flight on June 29, 1995, and the second prototype (C-FORS) followed on July 13, 1995. After a short development program, the first production 407 (C-FWQY/N407BT) flew on November 10, 1995.[3]
The Bell 407 features the four-blade main rotor developed for the OH-58D (Model 406). The blades and hub use composite construction with unlimited life, providing better performance and a more comfortable ride. The 407 fuselage is Script error: No such module "convert". wider, increasing internal cabin space, and has 35% larger main cabin windows. The more powerful Rolls-Royce/Allison 250-C47 turboshaft allows an increased Maximum Takeoff Weight, improving performance at hotter temperatures and/or higher altitudes.[1] The helicopter has standard seating for two crew and five passengers.[4]
The 407 was certified by Transport Canada on February 9, 1996, with the FAA following shortly after on February 23.[3][5] Full production began in 1996 at Bell's Mirabel, Quebec, Canada plant and produced 140 airframes in 1997, to fill the initial orders.[4]
In 1995, Bell tested a shrouded tail rotor on the 407,[2] but did not proceed. For a time, Bell studied a Model 407T twin-engine variant, but instead chose to develop the essentially all-new twin-PW206D powered Bell 427.[1]
Bell began deliveries of the 407 in 1996. The 1,000th helicopter was delivered on June 15, 2010.[3] 1,400+ by Dec 2017,[6] and over 1600 were produced by early 2023.[7]
Template:Asof, Bell Textron is collaborating with Mumbai-based Max AeroSpace and Aviation to site an assembly plant in Nagpur, given it receives the reconnaissance and surveillance helicopters (RSH) from the Indian Ministry of Defence. The agreement is a result of Bell's memorandum of understanding (MoU) with the Government of Maharashtra to advance the state's helicopter manufacturing programme.[8] In order to replace Chetak and Cheetah helicopters in the Indian Armed Forces, the Ministry of Defence has issued a Request for Information (RFI) for the procurement of 200 light helicopters under the reconnaissance and surveillance helicopters (RSH) programme in August 2025. Under the programme, 120 units and 80 units are to be procured for the Indian Army and Air Force, respectively. The RFI specifies that the suppliers are expected to be Indian vendors partnering with original equipment manufacturers (OEM). The helicopters are expected to be capable of operating day and night and undertake reconnaissance, surveillance and search and rescue operations. Hindustan Aeronautics Limited (HAL) is expected to offer the Light Utility Helicopter.[9] Meanwhile, Airbus will also offer the Made-in-India H125 along with Tata Advanced Systems.[10]
ARH-70 and Bell 417
The ARH-70 armed reconnaissance helicopter, developed for the U.S. Army was based on the 407, but canceled on October 16, 2008.[11]
The Bell 417 was intended as a variant of the Bell 407, in essence a civil version of the Bell ARH-70. The 417 made its first flight on June 8, 2006.[12] The 417 was to be powered by a Honeywell HTS900 turboshaft engine, producing Script error: No such module "convert". and includes full FADEC controls. The cabin sat five passengers in club-seating configuration, in addition to the crew of two.[13] The civilian 417 was canceled at Heli-Expo 2007 in Orlando.[14]
Bell 407GX and 407GT
On March 4, 2013, Bell unveiled a new armed version of the Bell 407GX, named the 407GT. It incorporates the Garmin G1000HTM flight deck to easily provide flight information. It can include infrared cameras, various armaments, and equipment to perform missions such as armed transport, search-and-rescue, reconnaissance, and medical evacuation. The GT version uses the Universal Weapons Pylon, derived from the Bell OH-58 Kiowa, to carry weapons such as machine guns, rockets, and anti-armor missiles.[15][16]
Operational history
Bell made delivery of the first production 407 at Heli-Expo, in Dallas, Texas in February 1996. Launch customers for the aircraft were Petroleum Helicopters International (PHI), Niagara Helicopters, and Greenland Air.[3][17]
On 23 May 2007, Colin Bodill and Jennifer Murray completed a record pole-to-pole around the world flight using a standard Bell 407. The flight originated from Bell's facility at the Fort Worth Alliance Airport on December 5, 2006. The team flew about Script error: No such module "convert". over 189 days and 300 flight hours, through 34 countries. The project, named Polar First, was performed in partnership with the Royal Geographical Society to provide educational outreach to 28 international schools, which were visited during the trip. The project also served as a fundraiser for the SOS Children's Villages.[18]
In 2009 the Iraqi Air Force ordered three Bell 407 armed scout helicopters (similar to the canceled ARH-70).[19] A contract for 24 additional Bell 407s with an option for 26 more was awarded in April of that same year.[20] The U.S. Army is managing modifications and installation of military equipment on the helicopters.[21] Three training T-407s were delivered to the Iraqi Army in 2010. Armed IA-407s were delivered in eight batches of three aircraft from August 2012 to April 2013. The final Bell 407 for Iraq was delivered on 3 April 2013.[22] There are 30 in service; 24 armed scouts, three gunships, and three trainers.[23]
Iraq is using the IA-407 in operations against Islamic State militants. On October 8, 2014, militants shot down an IA-407 using a shoulder-fired ground-to-air missile, killing the pilot and co-pilot.[24][25]
In December 2017, more than 1,400 were operating.[6]
Variants
- Bell 407
- A civil utility helicopter, a derivative of the Bell 206L-4.[3]
- ARH-70
- An upgraded 407 version to serve as an armed reconnaissance helicopter.
- Bell 417
- Planned civil version of the ARH-70, was canceled.
- Bell 407 Light Observation Helicopter
- A military reconnaissance version.[4]
- Eagle 407 HP
- Version from Eagle Copter (Alberta, Canada) with a more powerful Honeywell HTS900 engine, rated at Script error: No such module "convert"..[26][27]
- Northrop Grumman MQ-8C Fire Scout
- An unmanned aerial vehicle (UAV) version being developed by Northrop Grumman and Bell Helicopter as a cargo resupply demonstrator.[28][29][30] The test aircraft flew on 10 December 2010 at the Yuma Proving Ground.[31] In February 2011, the US Navy's budget request for 2012 included funds to buy 12 Fire-X helicopters under the designation MQ-8C.[32]
- Bell 407AH
- An armed civil-certified version for use with government and security forces.[33]
- Bell 407GX
- Version of the 407 that features the new Garmin G1000 H-model glass cockpit along with improved avionics and improved flight controls.[34]
- Bell 407GT
- Armed version of the 407GX.[15]
- Bell 407GXP
- Marketing designation for the 407 with Rolls-Royce 250-C47B/8 engine and Garmin G1000H avionics.[35]
- Bell 407GXi
- Marketing designation for the 407 with Rolls-Royce 250-C47E/4 engine and Garmin G1000H NXi avionics.
Operators
The Bell 407 is in civil service around the world with airlines, corporations, hospitals, government operators, and private individuals. It is also in service with several military operators.
Military
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- United States Army: 5 unitsScript error: No such module "Unsubst".[42]
Accidents
On June 4, 2022, Bell 407 GXP, N98ZA, was substantially damaged in an accident near Fairfield, New Jersey. The commercial pilot was seriously injured. Investigation by the US National Transportation Safety Board (NTSB) found that the tail rotor crosshead drive plate was not bolted to the tail rotor crosshead. The tail rotor had been installed the day before; it was suspected that the bolts were not properly torqued.[43]
On June 8, 2022 a Bell 407 had an inflight separation of its tail boom while in cruise flight near Kalea, Hawaii. The pilot and two passengers sustained serious injuries, while three other passengers had minor injuries. The helicopter was substantially damaged during the crash. The US NTSB determined that the upper-left tail boom attachment hardware was not installed, leaving only three of four attachment points connected. Wreckage markings indicated that the bolt had been present at one point but had fallen out, resulting in progressive fatigue cracking. The NTSB requested immediate action from the US FAA and Transport Canada in the form of an urgent airworthiness directive.[44][45]
On June 15, 2025, an Aryan Aviation Bell 407 VT-BKA crashed in Uttarakhand, India. The intended destination was Guptkashi. The helicopter was carrying Hindu pilgrims, seven people died, including the pilot and his two-year-old son. The Aircraft Accident Investigation Bureau were brought to the fore of the investigation.[46][47]
Specifications (Bell 407)
See also
Related development
Aircraft of comparable role, configuration, and era
- AgustaWestland AW119 Koala
- Eurocopter AS350 Écureuil
- Eurocopter Fennec
- Eurocopter EC120 Colibri
- Eurocopter EC130
- Eurocopter EC135
- Kopter AW09
- MD Helicopters MD 600
- Kazan Ansat
Related lists
References
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- ↑ a b c d e f Frawley, Gerard. The International Directory of Civil Aircraft, 2003-2004, p. 47. Aerospace Publications Pty Ltd, 2003. Template:ISBN.
- ↑ a b Script error: No such module "citation/CS1".
- ↑ a b c d e Cite error: Script error: No such module "Namespace detect".Script error: No such module "Namespace detect".
- ↑ a b c "Bell 407". Jane's Helicopter Markets and Systems. Couldson, Surrey, UK: Jane's Information Group, 2010. subscription article, posted April 13, 2010Script error: No such module "Unsubst"..
- ↑ "Bell Helicopter 407" Template:Webarchive. Flug Revue, March 19, 2001.
- ↑ a b Script error: No such module "citation/CS1".
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- ↑ a b "Bell Helicopter Introduces Increased Mission Capability with the Bell 407GT" Template:Webarchive. Bell Helicopter, March 4, 2013.
- ↑ "BAE’s APKWS rockets integrated on Bell’s new Model 407GT". FlightGlobal, March 5, 2013.
- ↑ "History of the Bell Helicopter 407" Bell Helicopter. Template:Webarchive.
- ↑ Script error: No such module "Citation/CS1".
- ↑ "Bell 407s Ordered for Iraq". Air International, April 2009, Vol 76, No. 4. p. 7.
- ↑ "Bell Helicopter Sells 24 Model 407 Helicopters Destined for Iraqi Air Force" Template:Webarchive. Bell Helicopter, April 29, 2009.
- ↑ "Huntsville Times", pp. A1, A10. November 29, 2009. online version.
- ↑ Army makes final delivery of IA-407s to the Iraqis - Army.mil, 21 May 2013
- ↑ "More For The Iraq Army Air Corps". Strategypage.com, January 29, 2013.
- ↑ "IS downs another Iraqi helicopter". Armytimes.com, 8 October 2014
- ↑ Script error: No such module "citation/CS1".
- ↑ "Honeywell Announces HTS900 Engine Upgrade For Bell 407 Operators" Template:Webarchive. Honeywell, February 21, 2010.
- ↑ Thurber, Matt. "Eagle 407 soars with Honeywell engine". ainonline.com, February 21, 2010.
- ↑ Trimble, Stephen. "Northrop offers Fire-X concept for unmanned resupply". FlightGlobal, May 4, 2010.
- ↑ Warwick, Graham."Northrop, Bell Power Up Unmanned Fire-X" Script error: No such module "Unsubst".. Aviation Week, September 30, 2010.
- ↑ "Fire-X Vertical Unmanned Aircraft System" video. Northrop Grumman media via youtube.com. Retrieved 11 October 2010.
- ↑ Script error: No such module "citation/CS1".
- ↑ Warwick, Graham. "U.S. Navy Wants Larger Fire Scout Airframe"Script error: No such module "Unsubst".. Aviation Week, February 17, 2011.
- ↑ Trimble, Stephen. "Bell Helicopter unveils first certified armed 407s" Flight International, March 8, 2011.
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- ↑ https://www.flightglobal.com/download?ac=106507 Template:Bare URL inline
- ↑ "NTSB preliminary report for accident number ERA22FA257". NTSB
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Further reading
- Script error: No such module "citation/CS1". (El Chapo bought a Bell 407 helicopter on the advice of his personal pilot.)
External links
- Bell 407GXP page on BellHelicopter.com site
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- Pages with script errors
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- Bell aircraft
- 1990s United States helicopters
- 1990s United States civil utility aircraft
- 1990s Canadian helicopters
- 1990s Canadian civil utility aircraft
- Single-turbine helicopters
- Aircraft first flown in 1995
- Single-rotor helicopters
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