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Encyclopedia > Bell 47
Bell 47/H-13
Bell 47G
Type Multipurpose light helicopter
Manufacturer Bell Helicopter
Designed by Arthur M. Young
Maiden flight 8 December 1945
Introduced 1946
Primary users United States Army
British Army
Variants Bell 201
Bell 207

The Bell 47 was the first helicopter to be certified for civil use on 8 March 1946.[1][2] It was largely designed by Arthur M. Young who joined Bell Helicopter in 1941. Over 5,600 were produced up to 1974, including 1200 under license in Italy, 239 in Japan, and 239 in the UK. Download high resolution version (1200x732, 119 KB)Bell 47G photo by Meggar File links The following pages link to this file: Bell 47 Categories: GFDL images ... An aerospace manufacturer is a company or individual involved in the various aspects of designing, building, testing, selling, and maintaining aircraft, aircraft parts, missiles, rockets, and/or spacecraft. ... Categories: Aircraft stubs | Corporation stubs | U.S. aircraft manufacturers ... Arthur Middleton Young (November 3, 1905–1995) was inventor of the Bell helicopter, as well as a cosmologist, philosopher and author. ... The Maiden flight of an aircraft is the first occasion on which an aircraft leaves the ground of its own accord. ... is the 342nd day of the year (343rd in leap years) in the Gregorian calendar. ... Year 1945 (MCMXLV) was a common year starting on Monday (link will display the full calendar). ... The United States Army is the largest branch of the armed forces of the United States. ... The British Army is the land armed forces branch of the British Armed Forces. ... The Bell 201, Bell Helicopters first turbine helicopter, was a modified Model 47G (designated the XH-13F by the US military). ... The Bell AH-1 Cobra, called the Huey Cobra, Cobra, Sea Cobra, Super Cobra, or Snake (depending on the model), is an attack helicopter, designed by Bell Helicopter Textron. ... A helicopter is an aircraft which is lifted and propelled by one or more horizontal rotors consisting of two or more rotor blades. ... is the 67th day of the year (68th in leap years) in the Gregorian calendar. ... Year 1946 (MCMXLVI) was a common year starting on Tuesday (link will display full 1946 calendar) of the Gregorian calendar. ... Arthur Middleton Young (November 3, 1905–1995) was inventor of the Bell helicopter, as well as a cosmologist, philosopher and author. ... Categories: Aircraft stubs | Corporation stubs | U.S. aircraft manufacturers ...


It entered U.S. Military service in late 1946, and would go on to service under a wide variety of versions and designations over 3 decades that followed. Its use in the Korean War (1950-1953) as the H-13 Sioux by the United States Army would be among the highlights of its extensive career. Combatants United Nations:  Republic of Korea,  Australia,  Belgium,  Luxembourg,  Canada,  Colombia,  Ethiopia,  France,  Greece,  Luxembourg,  Netherlands,  New Zealand,  Philippines,  South Africa,  Thailand,  Turkey,  United Kingdom,  United States Medical staff:  Denmark,  Australia,  Italy,  Norway,  Sweden Communist states:  Democratic People’s Republic of Korea,  Peoples Republic of China,  Soviet Union Commanders...

Contents

Design

Bell 47J Ranger

Early models were variable in appearance, with open cockpits or sheet metal cabins, covered or open structures, some with four-wheel landing gear. Model D and Korean War types settled to a more utilitarian style. The most common model, the 47G introduced in 1953, can be recognized by the full bubble canopy, exposed welded-tube tail boom, saddle fuel tanks, and skid landing gear. Later 47H and 47J Ranger models had a regular cabin with full cowling and monocoque tail boom. Engines were Franklin or Lycoming horizontally-opposed piston engines of 200 to 305 HP (150 to 230 kW). Seating varied from two to four. Many are still in use as trainers and in agriculture (as of 2005). Download high resolution version (1200x876, 183 KB)Bell 47J Photo by Meggar File links The following pages link to this file: Bell 47 Categories: GFDL images ... Download high resolution version (1200x876, 183 KB)Bell 47J Photo by Meggar File links The following pages link to this file: Bell 47 Categories: GFDL images ... VC-10 (1960s) Airliner Cockpit. ... Sheets of stainless steel cover the Chrysler Building Thin sheets of gold leaf Sheet metal is simply metal formed into thin and flat pieces. ... Closeup of the front view of an F-16 Fighting Falcon showing the bubble canopy P-51 Mustang on the ground with canopy open A bubble canopy is a canopy made like a soap bubble, providing 360° vision to the pilot. ... The raised canopy of a Vans RV-7A A canopy is the transparent enclosure over the cockpit of an aircraft. ... It has been suggested that Racing Fuel Cell be merged into this article or section. ... Monocoque (French for single shell) is a construction technique that uses the external skin of an object to support some or most of the load on the structure. ... An engine in the broadest sense, is something that produces an output effect from a given input. ... The Franklin Engine Company was a manufacturer of aircraft engines. ... For other meanings of Lycoming, please see Lycoming (disambiguation). ... Components of a typical, four stroke cycle, DOHC piston engine. ... hp, see HP (disambiguation) The horsepower (hp) is the name of several non-metric units of power. ... The watt (symbol: W) is the SI derived unit of power, equal to one joule per second. ... This article or section does not cite its references or sources. ...


Operational history

Agusta Bell 47G, built 1964
Agusta Bell 47G, built 1964

NASA had a number of Bell 47s during the Apollo program, used by astronauts as a trainer for the Lunar Lander. Eugene Cernan had a near disastrous accident shortly before his flight to the moon on Apollo 17 by crashing one into the Indian River. Image File history File links Metadata Size of this preview: 795 × 600 pixelsFull resolution (1978 × 1492 pixel, file size: 946 KB, MIME type: image/jpeg) Agusta Bell 47G-3B-1 helicopter (UK registration G-BFEB, built 1964) at Kemble Airfield, Gloucestershire, England. ... Image File history File links Metadata Size of this preview: 795 × 600 pixelsFull resolution (1978 × 1492 pixel, file size: 946 KB, MIME type: image/jpeg) Agusta Bell 47G-3B-1 helicopter (UK registration G-BFEB, built 1964) at Kemble Airfield, Gloucestershire, England. ... The National Aeronautics and Space Administration (NASA) is an agency of the United States federal government, responsible for the nations public space program. ... For other uses, see Apollo (disambiguation). ... The LEM flight instrumentation panel and front windows. ... Eugene Andrew Cernan (born March 14, 1934) is a former American astronaut. ... Apollo 17 was the eleventh manned space mission in the NASA Apollo program. ... The Indian River is a waterway in Florida, a part of the Indian River Lagoon system. ...


Initially, the US Navy procured several Bell 47s, designated HTL-1, between 1947 and 1958. The US Coast Guard evaluated this model, and procured two HTL-1s for multi-mission support in the New York Harbor. The most common US Navy version of the 47 was designated the HTL-4, and dispenses with the fabric covering on the tail boom. The US Coast Guard procured three HTL-5s in 1952 (similar to the HTL-4 but powered by a Franklin 0-335-5 engine) and used these until 1960.[3]


The Coast Guard procured two of Bell's Model 47G and designated them HUL-1G in 1959.[3]


The British version of the 47G, called by the British Army the Sioux AH.1, was built by Westland Helicopters for use by the Army Air Corps, who used it until the early 1980s.[citation needed] The Sioux military version was often equipped with military evacuation panniers, one to each skid, with an acrylic glass shield to protect the patient from wind. The British Army is the land armed forces branch of the British Armed Forces. ... Westland Aircraft was a British aircraft manufacturer located in Yeovil in Somerset, formed just before the start of World War II. During the war the company produced a number of generally unsuccessful designs, but their Lysander would serve as an important liaison aircraft with the RAF. After the war the... The Army Air Corps is a component of the British Army. ... Polymethyl methacrylate (PMMA) or poly (methyl 2-methylpropenoate) is the synthetic polymer of methyl methacrylate. ...


H-13 were produced in Japan by a Bell and Kawasaki venture;this led to the Bell-Kawasaki KH-4 variant, essentially a three seat version of the Model 47.


Variants

Civilian

[4]

Bell 47
Bell 47A
Bell 47B
equivalent to the military YR-13/HTL-1, powered by the Franklin O-335-1.
Bell 47B-3
agricultural/utility version with open crew positions
Bell 47C
Bell 47D
first to appear with a moulded 'goldfish bowl' canopy
Bell 47D-1
introduced in 1949, it had an open tubework tailboom reminiscent of the Bell Model 30, ship number 3, and a three-seat configuration.
Bell 47E
Bell 47F
Bell 47G
combines a 149 kW Franklin engine with the three-seat configuration of the 47D-1 and introduced the saddle-bag fuel tank configuration.
Bell 47G-2
Powered by the Avco Lycoming VO-435 engine. Produced under license by Westland for the UK military.
Bell 47G-2A
Powered by a 179 kW version of the VO-435.
Bell 47G-2A-1
Wider cabin, improved rotor blades and increased fuel capacity.
Bell 47G-3
Powered by a supercharged 168 kW Franklin 6VS-335-A.
Bell 47G-3B
Powered by a turbocharged 209 kW Avco Lycoming TVO-435.
Bell 47G-4
Three-seat helicopter powered by an Avco Lycoming VO-540 engine.
Bell 47G-5
A three-seat, utility version of the U.S. Air Force's UH-13J. It was marketed as the Model 47J Ranger and powered by an Avco Lycoming VO-435 engine. A two-seat agricultural version was later known as the Ag-5. The 47G-5 was the last model to be produced by Bell.

Military

[4]

YR-13/HTL-1
28 Bell 47A helicopters procured by the U.S. Air Force for evaluation. The YR-13 was powered by a 117 kW Franklin O-335-1 piston engine. 10 of the aircraft were evaluated by the U.S. Navy as trainers.
YR-13A
3 YR-13 aircraft winterized for cold-weather testing in Alaska.
HTL-2
HTL-3
H-13B
65 aircraft ordered in 1948 by the U.S. Army. All Army versions were later named Sioux.
H-13C
15 H-13B aircraft converted to carry external stretchers in 1952.
H-13D
Army two-seat version with skid landing gear, stretcher carriers, and Franklin O-335-5 engine.
OH-13E
H-13D configuration with three-seat aircraft with dual controls.
XH-13F/Bell 201 
Modified Bell 47G powered by a Continental XT51-T-3 (Turbomeca Artouste) turboshaft. The first Bell helicopter powered by a turbine engine.
OH-13G
Introduced a small elevator on the tailboom.
UH-13J
Two Bell 47J Ranger aircraft utilizing the 179 kW Lycoming VO-435 engine acquired for VIP transport of the U.S. President by the U.S. Air Force. Originally designated as H-13J.
OH-13H/UH-13H
Equipped with a 186 kW Lycoming VO-435 engine. UH-13Hs were used by the U.S. Air Force.
OH-13K
Two converted H-13Hs with a larger diameter rotor and a 168 kW Franklin 6VS-335 engine for test evaluation.
TH-13L
Originally designated as the Navy HTL-4.
HTL-5
Utilized a Lycoming O-335-5 engine.
TH-13M
Incorporated a small movable elevator. Originally designated as the Navy HTL-6
TH-13N
Two-seat, dual-control, instrument trainer with all-weather instrumentation. Originally designated as the Navy HTL-7.
UH-13P
Used aboard ice-breaking ships. Originally designated as the Navy HUL-1.
HH-13Q
Originally the HUL-1G, it was used by the U.S. Coast Guard for search and rescue.
OH-13S
Three-seat observation helicopter to replace the OH-13H.
TH-13T
Two-seat instrument trainer for the U.S. Army based on the 47G-3B-1.

The Bell 201, Bell Helicopters first turbine helicopter, was a modified Model 47G (designated the XH-13F by the US military). ... The Turboméca Artouste was an early French turboshaft engine, first run in 1947. ...

Conversions

[4]

Agusta A.115[5][6]
1971 Italian prototype of a Bell 47J with an unclad, tubular tail boom, and powered by a Turboméca Astazou II turboshaft engine.
Carson Super C-4
El Tomcat Mk.II[7]
Bell 47G-2 modified extensively for agricultural spraying by Continental Copters Inc. First flew in April 1959.
El Tomcat Mk.III
Improved version of the Mk.II, it first flew in April 1965.
El Tomcat Mk.IIIA
Powered by the Franklin 6V4-200, 6V-335, or 6V-350 engines.
El Tomcat Mk.IIIB
Featured a modified fiberglass nose with a repositioned windscreen and a lower cabin roof, and was powered by the 235 hp Franklin 6V-350-A. Produced in 1967.
El Tomcat Mk.IIIC
Improved version with 200 hp Franklin 6V4-200-C32, 210 hp 6V-335-A, or 235 hp 6V-350-A engines.
El Tomcat Mk.V
First flown in June 1968, it was powered by a 220 hp Lycoming VO-435-A1A.
El Tomcat Mk.V-A
Powered by a 260 hp Lycoming VO-435-A1F with a foldable jump-seat.
El Tomcat Mk.V-B
Powered by a 265 hp Lycoming VO-435-B1A.[citation needed]

Founded in 1938, Turbomeca is one of the leading manufacturers of low and medium-power gas turbine for helicopters. ...

Bell 47 redesignations

The Bell 47 was designated under multiple systems, see United States of America military aircraft designation systems. It is best known as the H-13 Sioux, though it actually started as the YR-13 in 1946. It became the H-13 under the USAF, though the USN had called it the HTL. The United States Military Aircraft Designation System was first designed in 1919 when the US Armys Aeronautical Division became the United States Army Air Service. ...


In post-1962 US designations combinations with the number 13 are often skipped, but in the older system the R-13/H-13 shared the number with the X-13 Vertijet and XP-13 Viper (see List of military aircraft of the United States) The Ryan X-13A-RY Vertijet, Ryan Model 69, was an experimental Vertical Take-Off and Landing aircraft flown in the United States in the 1950s. ... The XP-13 Viper was a prototype biplane fighter designed by the Thomas-Morse Aircraft Corporation and delivered to the United States Army in 1929. ... This list of military aircraft of the United States includes prototype, pre-production and operational types. ...


In 1962 Army, Navy, and Air Force versions were redesignated under the new Tri-service system. Mainly, the H-13 based ones were converted to new standards which included a vehicle type designator and a mission symbol (2 letter prefix; OH, UH, XH, etc. This was a shift from the initial USAF 1948 system (with the numbered carried over from the USAAF/C system) and the USN 1922-1962 system to the new 1962 system.[8]

Designations
Service Pre-1962 1962-
Army H-13E OH-13E
H-13G OH-13G
H-13H OH-13H
USAF H-13H UH-13H
H-13J UH-13J
Navy H-13K OH-13K
HTL-4 TH-13L
HTL-6 TH-13M
HTL-7 TH-13N
HUL-1 UH-13P
HUL-1M UH-13R
USCG HUL-1G HH-13Q

Operators

Bell 47 in Italian Carabinieri markings
Bell 47 in Italian Carabinieri markings
Bell 47G in M*A*S*H paint scheme.
Bell 47G in M*A*S*H paint scheme.

Image File history File links Metadata Size of this preview: 800 × 600 pixelsFull resolution (2592 × 1944 pixel, file size: 259 KB, MIME type: image/jpeg) File history Legend: (cur) = this is the current file, (del) = delete this old version, (rev) = revert to this old version. ... Image File history File links Metadata Size of this preview: 800 × 600 pixelsFull resolution (2592 × 1944 pixel, file size: 259 KB, MIME type: image/jpeg) File history Legend: (cur) = this is the current file, (del) = delete this old version, (rev) = revert to this old version. ... The Carabinieri is the shortened (and common) name for the Arma dei Carabinieri, an Italian military corps of the gendarmerie type with police functions, which also serves as the Italian military police. ... Image File history File linksMetadata Download high resolution version (2560x1920, 1164 KB) Bell 47G in MASH colours. ... Image File history File linksMetadata Download high resolution version (2560x1920, 1164 KB) Bell 47G in MASH colours. ... Image File history File links Flag_of_Argentina. ... Image File history File links This is a lossless scalable vector image. ... Image File history File links Flag_of_Austria. ... Image File history File links Flag_of_Brazil. ... Image File history File links This is a lossless scalable vector image. ... Image File history File links Flag_of_Chile. ... Image File history File links Flag_of_the_Republic_of_China. ... Motto none Anthem National Anthem of the Republic of China Capital Taipei (formerly and de jure Nanking) Largest city Taipei Official languages Standard Mandarin (GuóyÇ”) Government Semi-presidential system  -  President Chen Shui-bian  -  Vice President Annette Lu  -  Premier Chang Chun-hsiung Establishment Xinhai Revolution   -  Independence declared October 10, 1911... Image File history File links Flag_of_Colombia. ... 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Image File history File links Flag_of_South_Yemen. ...   Capital Aden Language(s) Arabic Government Socialist state President Haidar Abu Bakr al-Attas Prime Minister Yasin Said Numan Historical era Cold War  - Independence November 30 1967  - UN membership December 14, 1967  - Constitution October 31, 1978  - Reunification May 22 1990 Area  - 1990 332,970 km2 Expression error: unrecognised punctuation character... Image File history File links Flag_of_Spain. ... Image File history File links Flag_of_Sri_Lanka. ... Image File history File links Flag_of_Sweden. ... Image File history File links Flag_of_Thailand. ... Image File history File links Flag_of_Turkey. ... Image File history File links Flag_of_the_United_Kingdom. ... The British Army is the land armed forces branch of the British Armed Forces. ... RAF is an three letter acronym for: Royal Air Force -- the Air Force of the United Kingdom (see also Air Ministry) Red Army Faction (Rote Armee Fraktion) -- a German terror organisation Rigas Autobusu Fabrika -- a factory making buses in Riga, Latvia Rapid Action Force in India Računarski Fakultet RAF... Image File history File links This is a lossless scalable vector image. ... Seal of the Air Force. ... The Army is the branch of the United States armed forces which has primary responsibility for land-based military operations. ... The United States Navy (USN) is the branch of the United States armed forces responsible for naval operations. ... United States Marine Corps Emblem The United States Marine Corps (USMC) is the second smallest of the five branches of the United States armed forces, with 170,000 active and 40,000 reserve Marines as of 2002. ... USCG HH-65 Dolphin USCG HH-60J JayHawk The United States Coast Guard (USCG) is a branch of the United States armed forces and is involved in maritime law enforcement, mariner assistance, search and rescue, and national defense. ... Image File history File links Flag_of_Uruguay. ... Image File history File links Flag_of_Venezuela. ... Image File history File links Flag_of_SFR_Yugoslavia. ... Capital Belgrade Language(s) Serbo-Croatian, Slovenian, Macedonian, Albanian, Hungarian and languages of other nationalities. ... Image File history File links Flag_of_Zaire. ... Image File history File links Flag_of_Zambia. ...

Survivors

Entrance to the Steven F. Udvar-Hazy Center Aerial view of the Steven F. Udvar-Hazy Center The Steven F. Udvar-Hazy Center is the Smithsonian National Air and Space Museum (NASM)s annex at Washington Dulles International Airport in Chantilly, Virginia. ... FAA Airport Diagram Washington Dulles International Airport (IATA: IAD, ICAO: KIAD, FAA LID: IAD) is a public airport located 20 miles (32 km) west of the central business district of Washington, D.C., in Loudoun County, Virginia, United States. ... Chantilly is an unincorporated community located in western Fairfax County, in the Commonwealth of Virginia. ... Dwight David Ike Eisenhower, born David Dwight Eisenhower (October 14, 1890 – March 28, 1969) was an American General and politician, who served as the thirty-fourth President of the United States (1953–1961). ... The Alberta Aviation Museum address is 11410 Kingsway Ave. ... Edmonton is the capital of the Canadian province of Alberta, situated in the north central region of the province, an area with some of the most fertile farm land on the prairies. ... Pueblo Weisbrod Aircraft Museum is located 31001 Magnuson Pueblo, Colorado 81001, 719. ... The City of Pueblo is a home rule municipality located in Pueblo County in southern Colorado. ...

Specifications (Bell 47G)

Data from International Directiory of Civil Aircraft[9] Image File history File links No higher resolution available. ...

General characteristics

  • Crew: 1 or 2
  • Capacity: 1 passenger or 2 litters
  • Length: 31 ft 7 in (9.63 m)
  • Rotor diameter: 37 ft 2 in (11.32 m)
  • Height: 9 ft 3 in (2.83 m)
  • Disc area: 1085 ft² (100.8 m²)
  • Empty weight: 1893 lb (858 kg)
  • Useful load: 1057 lb (482 kg)
  • Max takeoff weight: 2950 lb (1340 kg)
  • Powerplant:Lycoming TVO-435-F1A flat, six-cylinder, reciprocating engine, 280 hp (210 kW)

Performance

In aviation, the Maximum Take-Off Weight (or MTOW) is the maximum weight with which an aircraft is allowed to try to achieve flight. ... For other meanings of Lycoming, please see Lycoming (disambiguation). ... VNO of an aircraft is the V speed which refers to the velocity of normal operation. ... Airspeed Indicator in a light aircraft The VC of an aircraft is the V speed which refers to the velocity of cruising. ... The maximal total range is the distance an aircraft can fly between takeoff and landing as limited by its fuel capacity. ... This page is a candidate to be moved to Wiktionary. ...

Popular culture

The Bell 47 appeared, and played key roles, in film and television productions. It has been associated with both the M*A*S*H film, and the M*A*S*H television series, and the Whirlybirds TV series (1957–1959).[10] The distinctive "chirping" sound of the Bell 47 powering down is used by movie sound editors for any helicopter landing. [1] M*A*S*H is a 1970 satirical American dark comedy film directed by Robert Altman, based extremely loosely on the novel written by Richard Hooker. ... M*A*S*H is an American television series developed by Larry Gelbart, inspired by the 1968 Richard Hooker (penname for H. Richard Hornberger) novel M*A*S*H: A Novel About Three Army Doctors and its sequels, but primarily by the 1970 film MASH, and influenced by the 1961... Whirlybirds (sometimes mistakenly called The Whirlybirds) was a U.S. television show that aired from 1957 to 1959 with a total of 111 episodes. ...


References

  1. ^ Bell Helicopters. Helicopter History Site.
  2. ^ Biography of ARTHUR MIDDLETON YOUNG.
  3. ^ a b Pearcy, Arthur (1989). A History of Coast Guard Aviation. Naval Institute Press. ISBN 0-87021-261-3. 
  4. ^ a b c Bell Model 47 "Sioux". Retrieved on 25 February 2007.
  5. ^ Taylor, M. J. H. (1989). Jane's encyclopedia of aviation. London: Studio Editions, 40. ISBN 1851703241. 
  6. ^ Simpson, R. W. (1998). Airlife's Helicopters and Rotorcraft. Ramsbury: Airlife Publishing, 37. 
  7. ^ Continental Copters "El Tomcat". Helicopter History Site.
  8. ^ Derek Bridges. U.S. Military Aircraft and Weapon Designations. Retrieved on 17 April 2007.
  9. ^ Frawley, Gerard: The International Directiory of Civil Aircraft, 2003-2004, page 42. Aerospace Publications Pty Ltd, 2003. ISBN 1-875671-58-7
  10. ^ University of Toronto Bell 47 Web site project
  • Riley, David (February 1958). "French Helicopter Operations in Algeria". Marine Corps Gazette.  pp. 21-26.
  • Shrader, Charles R. (1999). The first helicopter war: logistics and mobility in Algeria, 1954-1962. Westport, CT: Praeger. ISBN 0275963888. 
  • Spenser, Jay P. (1998). Whirlybirds a history of the U.S. helicopter pioneers. Seattle: University of Washington Press in association with Museum of Flight. ISBN 0295980583. 
  • Donald, David (1998). The complete encyclopedia of world aircraft. New York: Barnes & Noble Books. OCLC 52598955. 
  • Pelletier, Alain J (1992). Bell aircraft since 1935. Annapolis, Md: Naval Institute Press. ISBN 1557500568. 
  • Jane, Fred T; Taylor, Michael John Haddrick (1989). Jane's encyclopedia of aviation. New York: Portland House. ISBN 0517691868. 

External links

  • Bell 47.net
  • Bell 47 Enthusiast site
  • Model 47G Museum site
  • Model 47G specs from The International Directory of Civil Aircraft by Gerard Frawley

Related content

Wikimedia Commons has media related to:
Bell 47

Related development

Comparable aircraft

Designation sequence

  • Bell:
    • 40 - 43- 44 - 47
    • 47 - 200 - 201 - 204/205
  • Pre-1948 USAAC/F:
    • R-10 - R-11 - R-12 - R-13 - R-14 - R-15 - R-16
  • Post-1948 USAF:
    • H-10 - H-11 - H-12 - H-13 - H-14 - H-15 - H-16
  • 1922-1962 Navy :
    • HTK - HTE - HTL - HUK - HU2K
    • HUK/HU2K - HUL - HUM - HUP - HUS/HU2S
  • Post-1962 Tri-Service:
    • OH-4 - YOH-5A - OH-6 - OH-13 - CH-19 - UH-21 - UH-25

Related lists

See also


  Results from FactBites:
 
Bell 47 - Wikipedia, the free encyclopedia (383 words)
The Bell 47 (military H-13 Sioux) was the first helicopter to be certified for civil use, in May 1946.
It was largely designed by Arthur M. Young who assigned his helicopter patents to, and joined Bell Helicopter in 1941.
NASA had a number of Bell 47s during the Apollo programme which astronauts used as a primitive trainer for the Lunar Lander.
  More results at FactBites »

 
 

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