A Bell XH-40, a prototype of the UH-1 and Bell 204
Bell designed its Model 204 in response to a 1955 United States Army requirement for a utility helicopter. The 204 was a giant step forward in helicopter design, being one of the first to be powered by a turboshaft. The turboshaft engine radically improved the practicality of the helicopter due to its light weight and high power-to-weight ratio, lower fuel consumption, and lower maintenance and operating costs. The use of a turboshaft in the 204 allowed it to carry a useful payload over respectable ranges and at reasonable speeds, which resulted in the 204 and subsequent 205 becoming the most successful western helicopter series in terms of numbers built.[1]
The civil 204B was first delivered in 1961. The subsequent Model 205A-1 is equivalent to the UH-1H, which, compared to the 204, is longer, larger, and has better performance and a more powerful engine.[1]
Over 60 civil Model 204B helicopters had been delivered by 1967, while further examples were built by Agusta-Bell until 1973. 12,000 Model 205s (including civil 205A-1s) were built by Bell and Agusta-Bell up to the early 1980s. Numerous ex-military 204s and 205s were converted for commercial use.[1]
Variantsedit
A Bell 205A-1, used by Royal Thai Police
Bell 204edit
Bell Helicopter's company designation of the UH-1B.
Bell 204B – Civil or military utility transport helicopter, derived from the UH-1B. Powered by a Lycoming T53-L-09A, max weight was 8,500 lbs, max passengers, ten.[2]
Agusta 204B – Civil or military utility transport helicopter. Built under licence in Italy by Agusta in 1963–1967.[3] Also known as Agusta-Bell AB 204
Bell Helicopter's company designation of the UH-1H.
Bell 205A – Civil or military utility transport helicopter. Powered by one T53-L-11A, max weight 8,500 pounds, max passenger, 14.[2]
Agusta-Bell 205 – Civil or military utility transport helicopter. Built under licence in Italy by Agusta.[citation needed]
Bell 205A-1 – Civil or military utility transport helicopter version, initial version based on the UH-1H. Powered by one T53-L-13A, max weight 9,500 pounds (10,500 for external loads), max passengers, 14.[2]
Agusta-Bell 205A-1 – Modified version of the AB 205.[citation needed]
Fuji-Bell 205B – a joint Bell-Fuji commercial variant based on UH-1J, a Japanese improved model of UH-1H.[5]
Bell 210 – Bell Helicopter's designation for a UH-1H, remanufactured and sold as a new aircraft. Powered by one T53-L-17B, same weight capacities as the 205B.[2]
A Bell 205A-1 on firefighting duty with Valhalla Helicopters
Experimental modelsedit
Agusta-Bell 205BG – Prototype fitted with two Gnome H 1200 turboshaft engines.[6]
Agusta-Bell 205TA – Prototype fitted with two Turbomeca Astazous turboshaft engines.[6]
Bell 208 – In 1965, Bell experimented with a single twin-engine Model 208 "Twin Huey" prototype, which was a UH-1D fitted with Continental XT67-T-1 twin-pack engine module, consisting of two power turbines driving a common gearbox. This exercise was performed as an experiment using company funds.[6]
Upgradesedit
205A-1++ – Field-upgraded 205A utilizing a T53-L-17 engine and a 212 drivetrain. Similar to the production 205B and 210.
Advanced 205B – Proposed upgraded Japanese version.[citation needed]
Global Eagle – Pratt & Whitney Canada name for a modified UH-1H with a new PT6C-67D engine, modified tail rotor, and other minor changes reported to increase range and fuel efficiency over the Bell 212.[7]
Huey 800 – Upgraded commercial version, fitted with an LHTEC T800 turboshaft engine.[citation needed]
Bell 211 – The HueyTug, was a commercial version of the UH-1C with an upgraded transmission, longer main rotor, larger tailboom, strengthened fuselage, stability augmentation system, and a 2,650 shp (1,976 kW) T55-L-7 turboshaft engine.[8]
Bell 214 Huey Plus – Strengthened development of the Bell 205 airframe with a larger engine; optimized for "hot and high" conditions. Later developed into the larger, twin-engine Bell 214ST.[citation needed]
Panha Shabaviz 2-75 – is an Iranian utility helicopter built by the Iranian Helicopter Support and Renewal Company.[9] It is a reverse engineered version of the Bell 205s which were sold to the government of Mohammad Reza Pahlavi. The first example was built in 1998 and the type was publicly unveiled the following year.[9] It has been manufactured locally in Iran since 2002 and is in active service with the Iranian military and government. It has also been claimed that it can be modified to carry light weaponry.[citation needed]
"Pentagon Over the Islands: The Thirty-Year History of Indonesian Military Aviation". Air Enthusiast Quarterly (2): 154–162. n.d. ISSN 0143-5450.
The initial version of this article was based on a public domain article from Greg Goebel's Vectorsite.
External linksedit
Wikimedia Commons has media related to Bell 204.
Wikimedia Commons has media related to Bell 205.
FAS.org Huey profile
May 03, 2024
bell, bell, civilian, versions, iroquois, single, engine, military, helicopter, huey, family, helicopters, they, type, certificated, transport, category, used, wide, variety, applications, including, crop, dusting, cargo, lifting, forestry, operations, aerial,. The Bell 204 and 205 are the civilian versions of the UH 1 Iroquois single engine military helicopter of the Huey family of helicopters They are type certificated in the transport category and are used in a wide variety of applications including crop dusting cargo lifting Forestry Operations and aerial firefighting Bell 204 205 A Kern County Fire Department Bell 205 departs from Mojave Air and Space Port Role Multipurpose utility helicopter National origin United States Manufacturer Bell Helicopter First flight 22 October 1956 Introduction 1959 Produced 1956 1980s Developed from Bell UH 1 Iroquois Variants Bell 212Bell 214 Contents 1 Development 2 Variants 2 1 Bell 204 2 2 Bell 205 2 3 Experimental models 2 4 Upgrades 2 5 Derivatives 3 Operators 3 1 Military operators 3 2 Government operators 3 3 Civilian operators 4 Specifications 204B 5 See also 6 References 7 Bibliography 8 External linksDevelopment edit nbsp A Bell XH 40 a prototype of the UH 1 and Bell 204 Bell designed its Model 204 in response to a 1955 United States Army requirement for a utility helicopter The 204 was a giant step forward in helicopter design being one of the first to be powered by a turboshaft The turboshaft engine radically improved the practicality of the helicopter due to its light weight and high power to weight ratio lower fuel consumption and lower maintenance and operating costs The use of a turboshaft in the 204 allowed it to carry a useful payload over respectable ranges and at reasonable speeds which resulted in the 204 and subsequent 205 becoming the most successful western helicopter series in terms of numbers built 1 The civil 204B was first delivered in 1961 The subsequent Model 205A 1 is equivalent to the UH 1H which compared to the 204 is longer larger and has better performance and a more powerful engine 1 Over 60 civil Model 204B helicopters had been delivered by 1967 while further examples were built by Agusta Bell until 1973 12 000 Model 205s including civil 205A 1s were built by Bell and Agusta Bell up to the early 1980s Numerous ex military 204s and 205s were converted for commercial use 1 Variants edit nbsp A Bell 205A 1 used by Royal Thai Police Bell 204 edit Bell Helicopter s company designation of the UH 1B Bell 204B Civil or military utility transport helicopter derived from the UH 1B Powered by a Lycoming T53 L 09A max weight was 8 500 lbs max passengers ten 2 Agusta 204B Civil or military utility transport helicopter Built under licence in Italy by Agusta in 1963 1967 3 Also known as Agusta Bell AB 204 Fuji Bell 204B 204B 2 Civil utility transport helicopter Built under licence in Japan by Fuji Heavy Industries alongside military HU 1B and HU 1H for the Japan Ground Self Defense Force 4 Bell 205 edit Bell Helicopter s company designation of the UH 1H Bell 205A Civil or military utility transport helicopter Powered by one T53 L 11A max weight 8 500 pounds max passenger 14 2 Agusta Bell 205 Civil or military utility transport helicopter Built under licence in Italy by Agusta citation needed Bell 205A 1 Civil or military utility transport helicopter version initial version based on the UH 1H Powered by one T53 L 13A max weight 9 500 pounds 10 500 for external loads max passengers 14 2 Agusta Bell 205A 1 Modified version of the AB 205 citation needed Fuji Bell 205B a joint Bell Fuji commercial variant based on UH 1J a Japanese improved model of UH 1H 5 Bell 210 Bell Helicopter s designation for a UH 1H remanufactured and sold as a new aircraft Powered by one T53 L 17B same weight capacities as the 205B 2 nbsp A Bell 205A 1 on firefighting duty with Valhalla Helicopters Experimental models edit Agusta Bell 205BG Prototype fitted with two Gnome H 1200 turboshaft engines 6 Agusta Bell 205TA Prototype fitted with two Turbomeca Astazous turboshaft engines 6 Bell 208 In 1965 Bell experimented with a single twin engine Model 208 Twin Huey prototype which was a UH 1D fitted with Continental XT67 T 1 twin pack engine module consisting of two power turbines driving a common gearbox This exercise was performed as an experiment using company funds 6 Upgrades edit 205A 1 Field upgraded 205A utilizing a T53 L 17 engine and a 212 drivetrain Similar to the production 205B and 210 Advanced 205B Proposed upgraded Japanese version citation needed Global Eagle Pratt amp Whitney Canada name for a modified UH 1H with a new PT6C 67D engine modified tail rotor and other minor changes reported to increase range and fuel efficiency over the Bell 212 7 Huey 800 Upgraded commercial version fitted with an LHTEC T800 turboshaft engine citation needed Derivatives edit nbsp A Bell 205A 1 with its helitack firefighting crew with the Ontario Ministry of Natural Resources in 1995 Bell 211 The HueyTug was a commercial version of the UH 1C with an upgraded transmission longer main rotor larger tailboom strengthened fuselage stability augmentation system and a 2 650 shp 1 976 kW T55 L 7 turboshaft engine 8 Bell 212 Bell Helicopter s company designation for the UH 1N citation needed Bell 214 Huey Plus Strengthened development of the Bell 205 airframe with a larger engine optimized for hot and high conditions Later developed into the larger twin engine Bell 214ST citation needed Bell 412 Bell 212 with a four blade semi rigid rotor system citation needed Panha Shabaviz 2 75 is an Iranian utility helicopter built by the Iranian Helicopter Support and Renewal Company 9 It is a reverse engineered version of the Bell 205s which were sold to the government of Mohammad Reza Pahlavi The first example was built in 1998 and the type was publicly unveiled the following year 9 It has been manufactured locally in Iran since 2002 and is in active service with the Iranian military and government It has also been claimed that it can be modified to carry light weaponry citation needed Operators editMilitary operators edit For all military operators regardless of the actual model see List of UH 1 Iroquois operators nbsp Iranian Police Aviation AB 205A Government operators edit nbsp Canada National Research Council 10 nbsp Iran Law Enforcement Force of Islamic Republic of Iran Police Aviation nbsp Thailand Royal Thai Police 11 12 Royal Thai Navy 13 nbsp Taiwan National Airborne Service Corps 14 nbsp United States nbsp California Department of Forestry Super Huey formerly an EH 1H assigned to the Bieber Helitack crew takes off from the Mojave Airport California Department of Forestry and Fire Protection 15 Florida Division of Forestry 16 Kern County Fire Department 17 Las Vegas Metropolitan Police Department 18 NASA 19 20 Orange County Fire Authority 21 San Bernardino County Sheriff s Department 22 San Diego County Sheriff s Department 23 24 United States Border Patrol 25 26 Ventura County Sheriff s Department 27 Washington State Department of Natural Resources 28 Civilian operators edit many civilian operatorsSpecifications 204B edit nbsp nbsp Bell 204 instrument panel Data from The International Directory of Civil Aircraft 1 General characteristicsCrew 1 or 2 Capacity 8 9 passengers 3 000 lb 1 361 kg equivalent cargo Length 41 ft 8 in 12 70 m Height 14 ft 7 in 4 45 m Empty weight 4 600 lb 2 087 kg Max takeoff weight 9 500 lb 4 309 kg Powerplant 1 Lycoming T53 L 11A turboshaft engine 1 100 shp 820 kW Main rotor diameter 48 ft 15 m Main rotor area 1 808 sq ft 168 0 m2 Performance Maximum speed 120 kn 140 mph 220 km h Cruise speed 111 kn 128 mph 206 km h Range 300 nmi 350 mi 560 km Service ceiling 19 390 ft 5 910 m Rate of climb 1 755 ft min 8 92 m s See also editU S helicopter armament subsystems Related development Bell 212 Bell 214 Bell 412 Bell AH 1 Cobra Bell UH 1 Iroquois Bell UH 1N Twin Huey Related lists List of active United States military aircraftReferences edit a b c d Frawley Gerard The International Directory of Civil Aircraft 2003 2004 page 44 Aerospace Publications Pty Ltd 2003 ISBN 1 875671 58 7 a b c d FAA Type Certificate Data Sheet H1SW for the 204 205A 205A 1 and 210 models Mutza Wayne UH 1 Huey In Action Aircraft No 75 Squadron Signal Publications 1986 ISBN 0 89747 179 2 p 10 HISTORY SUBARU BELL 412EPX SUBARU Aerospace Company Takeshi Makino 24 December 2002 The Activities of Fuji Heavy Industries Ltd in the Field of Vertical Flight Archived from the original on 14 April 2004 Retrieved 17 November 2019 a b c Greg Goebel s Vectorsite in Public Domain Archived April 5 2011 at the Wayback Machine Douglas W Nelms 1 November 2005 Eagle Power Aviation Today Archived from the original on 14 November 2007 Retrieved 17 March 2007 Skycranes Centennial of Flight Commission Archived from the original on 9 April 2007 Retrieved 15 March 2007 a b Panha hovers between repair and manufacturing Research aircraft rotary and fixed wing National Research Council Canada Nrc cnrc gc ca Retrieved 22 April 2014 ROYAL THAI POLICE History PDF Archived from the original PDF on 23 September 2011 Retrieved 17 January 2013 Royal Thai Police Wing JetPhotos Net Archived from the original on 22 December 2015 Retrieved 17 January 2013 World Air Forces Historical Listings Thailand THL archived from the original on 25 January 2012 retrieved 30 August 2012 National Airborne Service Corps NASC TaiwanAirPower Retrieved 18 January 2013 CAL FIRE Air Unit Archived from the original on 24 September 2015 Retrieved 20 January 2013 Florida Department of Agriculture and Consumer Services ffs gov Retrieved 17 January 2013 Heuy dust off Network Solutions Archived from the original on 9 October 2012 Retrieved 22 January 2013 LVMPD Air Support Archived from the original on 15 January 2013 Retrieved 20 January 2013 NASA Security 8 January 2010 Retrieved 20 January 2013 of the UH 1 on Airliners net OC Fire Authority Copyright c DPD Retrieved 17 January 2013 SBSD Aircraft operated sbcounty gov Retrieved 17 January 2013 San Diego Sheriff s Copter 10 Responds To Riverside County For Hoist Rescue Police Helicopter Pilot com Archived from the original on 8 June 2015 Retrieved 17 January 2013 San Diego County Sheriff Bell 205A Demand media Retrieved 17 January 2013 Southwest Border Region CPB gov Archived from the original on 24 March 2014 Retrieved 17 January 2013 US Customs amp Border Protection UH 1H Demand media Archived from the original on 8 June 2015 Retrieved 17 January 2013 Ventura County Air Unit Retrieved 20 January 2013 Kittitas County prepares for wildfire season dailyrecordnews com Retrieved 17 January 2013 Bibliography editChant Christopher Fighting Helicopters of the 20th Century Graham Beehag Books Christchurch Dorset England 1996 Debay Yves Combat Helicopters France Histoire amp Collections 1996 Drendel Lou UH 1 in Action Carrollton TX Squadron Signal ISBN 0 89747 179 2 Francillon Rene J Vietnam The War in the Air New York Arch Cape Press 1987 Mesko Jim Airmobile The Helicopter War in Vietnam Squadron Signal Publications 1984 Specifications for 204 205 and 214 Huey Plus Mutza Wayne UH 1 Huey in Colors Carrollton TX Squadron Signal ISBN 0 89747 279 9 Pentagon Over the Islands The Thirty Year History of Indonesian Military Aviation Air Enthusiast Quarterly 2 154 162 n d ISSN 0143 5450 The initial version of this article was based on a public domain article from Greg Goebel s Vectorsite External links edit nbsp Wikimedia Commons has media related to Bell 204 nbsp Wikimedia Commons has media related to Bell 205 Bell Helicopter Official Huey II site FAS org Huey profile Retrieved from https en wikipedia org w index php title Bell 204 205 amp oldid 1215137087, wikipedia, wiki, book, books, library,
