Bell H-1 - Military Designations (UH-1 and AH-1)

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 Model 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.

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).

HH-1D

Army crash rescue variant of UH-1D.

Dornier UH-1D

Military utility transport helicopter. Built under license in Germany by Dornier Flugzeugwerke.

AH-1E

98 production aircraft 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 were built in 1965.

AH-1F

The AH-1F is a "Modernized AH-1S".

UH-1F

UH-1B/C for 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

UH-1D/H gunships operating with the Cambodia armed forces were locally given the designation UH-1G.

AH-1G HueyCobra

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

JAH-1G HueyCobra

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

TH-1G HueyCobra

Two-seat dual-control trainer.

UH-1H

Improved UH-1D with a Lycoming T-53-L-13 engine of 1,400 shp. 5,435 built.

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.

AIDC UH-1H

Military utility transport helicopter. Built under license in Taiwan by Aerospace Industrial Development Corporation.

JUH-1

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

TH-1H

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

AH-1J SeaCobra

Original twin engine AH-1 version.

AH-1J International

Export version of the AH-1J SeaCobra.

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.

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 HueyCobra

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 Dracula

Proposed version for Romania.

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 Improved SeaCobra

Improved version with 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

"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

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

"Zulu Cobra", in conjunction with the H-1 upgrade program. Version includes an upgraded 4 blade main rotor and adds the Night Targeting System (NTS).

AH-1Z King Cobra

AH-1Z offered under Turkey's ATAK program; selected for production in 2000, but later canceled when Bell and Turkey could not reach an agreement on production.

UH-1/T700 Ultra Huey

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

CH-118 Iroquois

Canadian Forces designation for the UH-1 Iroquois

CH-135 Twin Huey

Canadian Forces designation for the UH-1N Twin Huey

CH-146 Griffon

Canadian Forces designation for the Bell 412

Griffin HT Mk. 1

RAF designation for a trainer based on the 412EP

Griffin HAR Mk. 2

RAF designation for a Search and Rescue helicopter based on the 412EP