# Bell Huey family

The Bell Huey family of helicopters includes a wide range of civil and military aircraft produced since 1956 by Bell Helicopter. This H-1 family of aircraft includes the utility UH-1 Iroquois and the derivative AH-1 Cobra attack helicopter series and ranges from the XH-40 prototype, first flown in October 1956, to the 21st-century UH-1Y Venom and AH-1Z Viper. Although not flown in military service in the USA, the Bell 412 served in Canada and Japan and, like the UH-1Y, is a twin engine four rotor design based on the Bell 212.
| Model | Engines | Rotors | F.F. Year |
| UH-1/CH-118/204/5 | 1 | 2 | 1956 |
| UH-1N/CH-135/212 | 2 | 2 | 1968 |
| 412/CH-146/UH-2 | 2 | 4 | 1979 |
| UH-1Y | 2 | 4 | 2001 |

## Military designations (UH-1 and AH-1)
### XH-40

    The initial Bell 204 prototype. Three prototypes were built.

### YH-40

    Six aircraft for evaluation, as XH-40 with 12-inch cabin stretch and other modifications.

### Bell 533

    One YH-40BF rebuilt as a flight test bed with turbofan engines and wings.

### HU-1A

    Initial Bell 204 production model, redesignated as the UH-1A in 1962. The HU-1 designation gave rise to the popular but unofficial nickname "Huey".

### TH-1A

    UH-1A with dual controls and blind-flying instruments, 14 conversions.

### XH-1A

    A single UH-1A was redesignated for grenade launcher testing in 1960.

### HU-1B

    Upgraded HU-1A, various external and rotor improvements. Redesignated UH-1B in 1962.

### YUH-1B

    UH-1B prototypes

### NUH-1B

    A single test aircraft, serial number 64-18261.

### UH-1C

    UH-1B with improved engine, modified blades and rotor-head for better performance in the gunship role.

### YUH-1D

    Seven pre-production prototypes of the UH-1D.

### UH-1D

    Initial Bell 205 production model (long fuselage version of the 204). Also built under license in Germany by Dornier.

### HH-1D

    Rescue/fire fighting variant of UH-1D.

### AH-1E

    98 production Cobra gunships with the Enhanced Cobra Armament System (ECAS) featuring the M97A1 armament subsystem with a three-barreled M197 20 mm cannon. The AH-1E is also referred to as the "Upgunned AH-1S", or "AH-1S(ECAS)" prior to 1988.

### UH-1E

    UH-1B/C for USMC with different avionics and equipment.

### NUH-1E

    UH-1E configured for testing.

### TH-1E

    UH-1C configured for Marine Corps training. Twenty built in 1965.

### AH-1F

    "Modernized AH-1S", with upgraded avionics and defensive systems.

### UH-1F

    UH-1B/C for the USAF, with General Electric T-58-GE-3 engine of 1,325 shp.

### TH-1F

    Instrument and Rescue Trainer based on the UH-1F for the USAF.

### UH-1G

    Designation given locally to UH-1D/H gunships operating with the Cambodia armed forces.

### AH-1G

    Initial 1966 production model of the Cobra gunship for the US Army, with one 1,400 shp Avco Lycoming T53-13 turboshaft.

### JAH-1G

    One Cobra helicopter modified for armament testing, including Hellfire missiles and multi-barrel cannon.

### TH-1G

    Two-seat dual-control Cobra trainer.

### UH-1H

    Improved UH-1D with a Lycoming T-53-L-13 engine of 1,400 shp; 5,435 built. Also built under license in Taiwan by AIDC.

### CUH-1H

    Canadian Forces designation for the UH-1H utility transport helicopter. Redesignated CH-118.

### EH-1H

    Twenty-two aircraft converted by installation of AN/ARQ-33 radio intercept and jamming equipment for Project Quick Fix.

### HH-1H

    SAR variant for the USAF with rescue hoist. 30 built.

### JUH-1

    Five UH-1Hs converted to SOTAS battlefield surveillance configuration with belly-mounted airborne radar.

### TH-1H

    Modified UH-1Hs for use as basic helicopter flight trainers by the USAF.

### AH-1J

    Original twin-engine SeaCobra version, subsequently upgraded and exported to Iran as AH-1J "International"

### UH-1J

    An improved Japanese version of the UH-1H built under license in Japan by Fuji was locally given the designation UH-1J.

### HH-1K

    Purpose-built SAR variant of the Model 204 for the US Navy with USN avionics and equipment. 27 built.

### TH-1L

    Helicopter flight trainer based on the HH-1K for the USN.

### UH-1L

    Utility variant of the TH-1L.

### UH-1M

    Gunship specific UH-1C upgrade with Lycoming T-53-L-13 engine of 1,400 shp.

### UH-1N

    Initial Bell 212 production model, the Bell "Twin Pac" twin-engined Huey.

### HH-1N

    Rescue version of the UH-1N

### AH-1P

    100 production aircraft with composite rotors, flat plate glass cockpit, and improved cockpit layout for nap-of-earth (NOE) flight. The AH-1P is also referred to as the "Production AH-1S", or "AH-1S(PROD)" prior to 1988.

### UH-1P

    UH-1F variant for USAF for special operations use and attack operations used solely by the USAF 20th Special Operations Squadron, "the Green Hornets".

### YAH-1Q

    Eight AH-1Gs with XM26 Telescopic Sight Unit (TSU) and two M56 TOW 4-pack launchers.

### AH-1Q

    Upgraded AH-1G equipped with the M65 TOW/Cobra missile subsystem, M65 Telescopic Sight Unit (TSU), and M73 Reflex sight.

### YAH-1R

    AH-1G powered by a T53-L-703 engine without TOW system.

### AH-1RO

    Proposed version for Romania as Dracula.

### YAH-1S

    AH-1Q upgrade and TOW system.

### AH-1S

    AH-1Q upgraded with a 1,800 shp T53-L-703 turboshaft engine.

### AH-1T

    Named Improved SeaCobra, features an extended tailboom and fuselage and an upgraded transmission and engines.

### UH-1U

    Single prototype for Counter Mortar/Counter Battery Radar Jamming aircraft. Crashed at Edwards AFB during testing.

### UH-1V

    Aeromedical evacuation, rescue version for the US Army.

### AH-1W

    SuperCobra variant, nicknamed "Whiskey Cobra", day/night version with more powerful engines and advanced weapons capability.

### EH-1X

    Electronic warfare UH-1Hs converted under "Quick Fix IIA".

### UH-1Y Venom

    Named Venom, upgraded variant developed from existing upgraded late model UH-1Ns, with additional emphasis on commonality with the AH-1Z as part of the H-1 upgrade program.

### AH-1Z Viper

    Named Viper, or also "Zulu Cobra", it includes an upgraded 4 blade main rotor and adds the Night Targeting System (NTS). Offered as King Cobra to Turkey for its ATAK program and selected for production in 2000, but later canceled.

### UH-1/T700

    Upgraded commercial version, named Ultra Huey, fitted with a 1,400-kW (1900-shp) General Electric T700-GE-701C turboshaft engine.

### CH-118

    Canadian Forces designation for the UH-1H

### CH-135

    Canadian Forces designation for the UH-1N Twin Huey

### CH-146

    Canadian Forces designation for a variant of the Bell 412

### Griffin HT1

    RAF designation for a trainer based on the 412EP

### Griffin HAR2

    RAF designation for a search and rescue helicopter based on the Bell 412EP

## Civil designations
### Bell 204B

    11 seat utility transport helicopter; the civil certified model was based at the military model 204, known by the US Army as the UH-1B.

### Agusta-Bell AB 204

    11 seat utility transport helicopter. Built under licence in Italy by Agusta.

### Agusta-Bell AB 204AS

    Anti-submarine warfare, anti-shipping version of the AB 204 helicopter.

### Fuji-Bell 204B-2

    11 seat utility transport helicopter. Built under licence in Japan by Fuji Heavy Industries.

### Bell 205A

    15 seat utility transport helicopter.

### Agusta-Bell 205

    15 seat utility transport helicopter. Built under licence in Italy by Agusta.

### Bell 205A-1

    15 seat utility transport helicopter, initial version based on the UH-1H.

### Agusta-Bell 205A-1

    Modified version of the AB 205.

### Fuji-Bell 205A-1

    15 seat utility transport helicopter. Built under licence in Japan by Fuji.

### Bell 205A+

    Field upgraded 205A utilizing a T53-17 engine and a 212 rotor system. Similar to the production 205B and 210.

### Bell 205A-1A

    A 205A-1, but with armament hardpoints and military avionics. Produced specifically for Israeli contract.

### Fuji-Bell 205B

    A joint Bell-Fuji commercial variant based on UH-1J, a Japanese improved model of UH-1H.

### Agusta-Bell 205BG

    Prototype fitted with two Gnome H 1200 turboshaft engines.

### Agusta-Bell 205TA

    Prototype fitted with two Turbomeca Astazous turboshaft engines.

### Bell 208

    Experimental twin-engine "Twin Huey" prototype.

### Bell 209

    Original AH-1G prototype with retractable skid landing gear.

### Bell 210

    15 seat upgraded 205A

### 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) Lycoming T-55-L-7 turboshaft engine.

### Bell 212

    15 seat twin-engined derivative of the Bell 205

### Bell 214 Huey Plus

    Strengthened development of the Bell 205 airframe with a larger engine

### Bell 214ST

    18 seat twin engined utility helicopter

### Bell 249

    Experimental AH-1 demonstrator version fitted with a four-bladed rotor system, an uprated engine and experimental equipment, including Hellfire missiles.

### Bell 309 KingCobra

    Experimental version powered by one Lycoming T-55-L-7C engine.

### Bell 412

    Bell 212 with a four-bladed semi-rigid rotor system.

### Bell Huey II

    A modified and re-engined UH-1H, significantly upgrading its performance, and its cost-effectiveness. Currently offered by Bell to all current military users of the type.

### Global Eagle

    Pratt & Whitney Canada name for a modified UH-1H with a new PT6C-67D engine, modified tail rotor, and other minor changes to increase range and fuel efficiency over the Bell 212.

### Huey 800

    Upgraded commercial version, fitted with an LHTEC T800 turboshaft engine.

### Panha Shabaviz 2-75

    Unlicensed version made by PANHA in Iran.

### Panha 2091

    Unlicensed Iranian upgrade of the AH-1J International.