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Veteran Member - Level 2

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Posts: 219
Date: Mar 17, 2012
RE: Bell Helicopters

Anyways, I'm preparing to make an official Bell list. Could take some time.


Veteran Member - Level 2

Status: Offline
Posts: 246
Date: Mar 17, 2012

This ought to be good. I like your lists.


Veteran Member - Level 2

Status: Offline
Posts: 219
Date: Mar 22, 2012



Bell Model 30 -  First commercial helicopter, designed by Arthur M. Young and the first helicopter built by Bell Aircraft Company. Served as a prototype for the successful Model 47 series. Powered by a 160hp Franklin six-cylinder horizontally-opposed air-cooled engine.

  • No. 1 / "Ship 1" - (c/n 1, later registered NX41867) Nicknamed "Genevieve", this was the first prototype. First flew 29 December, 1942.
  • No. 1A / "Ship 1A" - No. 1 rebuilt, staged at Buffalo's Civil Stadium on the 4th of July.
  • No. 2 / "Ship 2" - (NX41868) Second prototype with enclosed ****pit and car-like doors for pilot and passenger.
  • No. 3 / "Ship 3" - (c/n 3, registered NX41869) Third prototype with four-wheel undercarriage, advanced instrument panel, and tubular tailboom. Retained open ****pit of No.1.

Some trivia:

The Model 30 was the first Bell helicopter used for a rescue. On 5 January, 1945, Jack Woolams baled out of a P-59 Airacomet near Lockport. Floyd Carlson and Dr. Thomas C. Marriott took off in one of the Model 30s and, guided by Joe Masham flying a P-59, rescued the unfortunate pilot.

Two of the Model 30s are still in existence: c/n 1A (NX41867) is on display at the National Air and Space Museum and c/n 3 (NX41869) is owned by Buffalo and Erie County Historical Society Museum, Amhurst, New York.

Bell Model 42 - Streamlined commercial helicopter development for the civil market, larger than the Model 47, powered by one 450hp Pratt & Whitney R-985 piston engine. Development came to a halt when no orders were placed, since there was no potential market for such an aircraft at the time. None of the examples survived.

  • (c/n 1, NX33540) - First prototype, was displayed at the Cleveland Air Show in December 1946.
  • (c/n 2, NX42063) - Second example.
  • (c/n 3) - Third example.

Bell Model 46 - 1946 project for a two-seat, single-engine, two-blade helicopter with Lycoming engine. Not built.

Bell Model 47 "Sioux"  - (AKA: The helicopter from M*A*S*H* wink) Two-bladed single-engine light helicopter developed from the Model 30. Became the first helicopter certified for civilian use on 8 March, 1946.

  • Bell 47 - Pre-production version, powered by a 133-kW (178-hp) Franklin piston engine.
  • Bell 47A - Improved version of the Bell 47, powered by a 117-kW (157-hp) Franklin O-335-1 piston engine.
  • Bell 47B - Equivalent to the military YR-13/HTL-1, powered by the Franklin O-335-1 piston engine.
  • Bell 47B-3 - Agricultural/utility version with open crew positions. Also, offered in a version to the US Postal Service as the Bell "Airmailer".
  • 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 - Powered by a 149-kW (200-hp) Franklin 6V4-200-C32 engine.
  • Bell 47F - ?
  • Bell 47G - Combines a 149 kW Franklin engine with the three-seat configuration of the 47D-1 and introduced the twin saddle-bag fuel tank configuration.
  • Bell 47G-2 - Powered by the Lycoming VO-435 engine. Produced under license by Westland Aircraft as the Westland Sioux, 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-2 "Wing Ding" -  Model 47G-2 (registered N6723D) converted under the leadership of Jan Drees and flown by Floyd Carlson and Lou Hartwig in 1963. Purpose was to develop an aircraft which would lift very large payloads in excess of its hover capability.
  • 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. A two-seat agricultural version was later known as the Ag-5. The 47G-5 was the last model to be produced by Bell.
  • Bell 47H-1 - A three-seat version with an enclosed cabin and fuselage.
  • Bell 47J Ranger - A four-seat version powered by an Avco Lycoming VO-435 engine.
  • Bell 47K - Miltary two-seat training variant of the 47J.
  • YR-13/HTL-1 - 28 Bell 47A helicopters procured by the United States Army Air Forces for evaluation. The YR-13 was powered by a 175 hp (130 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. Redesignated YH-13A in 1948.
  • HTL-2 - US Navy equivalent of the commercial Model 47D. 12 built.
  • HTL-3 - US Navy equivalent of the commercial Model 47E, powered by a 200 hp (149 kW ) Franklin 6V4-200-C32 engine. Nine built.
  • H-13B - 65 aircraft ordered in 1948 by the U.S. Army. All Army versions were later named "Sioux".
  • YH-13C - One H-13B used as engineering testbed. Fitted with skid undercarriage and open, uncovered tailboom.
  • H-13C - 16 H-13B aircraft converted to carry external stretchers in 1952, with skid landing gear and open tail boom of YH-13C.
  • H-13D - Army two-seat version based on commercial model 47D-1, with skid landing gear, stretcher carriers, and Franklin O-335-5 engine. 87 built.
  • OH-13E - H-13D configuration with three-seat aircraft with dual controls. 490 built.
  • 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 - Three-seater based on commercial model 47-G. Introduced a small elevator on the tailboom. 265 delivered to US Army.
  • OH-13H/UH-13H - Based on 47G-2. Equipped with a 250 hp (186 kW) Lycoming VO-435 engine. At least 453 acquired by US Army. UH-13Hs were used by the U.S. Air Force.
  • UH-13J - Two Bell 47J-1 Rangers acquired by the U.S. Air Force for VIP transport of the U.S. President. Originally designated as H-13J.
  • OH-13K - Two converted H-13Hs with a larger diameter rotor and a 225 hp (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.
  • HH-13Q - Originally the HUL-1G, it was used by the U.S. Coast Guard for search and rescue.
  • UH-13R - Powered by an Allison YT63-A-3 turbposhaft engine. Original US Navy designation HUL-1M.
  • OH-13S - Three-seat observation helicopter based on 47G-3B to replace the OH-13H. 265 received by US Army.
  • TH-13T - Two-seat instrument trainer for the U.S. Army based on the 47G-3B-1, powered by 270 hp (201 kW) Lycoming TVO-435-D1B. 411 purchased.
  • Sioux AH.1 - General purpose helicopter for the British Army, 50 built by Agusta (Agusta-Bell 47G-3B1) and 250 built by Westland (Westland-Augusta-Bell 47G-3B1).
  • Sioux HT.2 - Training helicopter for the Royal Air Force, 15 built by Westland.
  • Agusta-Bell 47G - built 1964, Italy.
  • Agusta A.115 - 1971 Italian prototype of a Bell 47J with an unclad, tubular tail boom, and powered by a Turboméca Astazou II turboshaft engine.
  • Meridionali/Agusta EMA 124 - Italian prototype with redesigned forward fuselage. Not produced.
  • Kawasaki KH-4 - Japanese production version with redesigned, lengthened cabin, and redesigned control system
  • Carson Super C-4 - ?
  • El Tomcat Mk.II - Bell 47G-2 modified extensively for agricultural spraying by Continental Copters Inc. First flew in April 1959. Followed by further improved versions.

Bell Model 48 / H-12 - Utility helicopter of similar construction to Model 42, incorporating the same basic rotor system of the Model 47.

  • Model 48- Initial designation.
  • XR-12 / XR-12-BE - (s/n 46-214/215) The two prototypes powered by a 540hp Pratt & Whitney R-1340-AN-1 Wasp radial engine. Alternative equipment included flotation gear for water operation (which was tested on aircraft 46-215), rescue hatch and hoist, litters and life rafts.
  • R-12A / R-12A-BE - (s/n 47-491/524) Planned batch of thirty-four production examples, but never built (order was cancelled in 1947).
  • Model 48A / XR-12B-BE - (s/n 46-216) Derivative with more powerful 600hp Pratt & Whitney R-1340-5 5 Wasp engine and 10 seats. One XR-12B/XH-12B prototype was produced and a pre-production batch of 10 were also built as YR-12B/YH-12Bs.
  • YH-12B / YR-12B-BE - (s/n 46-217/226) Ten Model 48As for service trials.
  • Model 48 "Feederliner" - Unbuilt commercial development.

Bell Model 49 - Coaxial-rotor two-seat research helicopter, which flew i n1945. Though Young had learned what he needed from the prototype, he was later distressed to find that it had been unceremoniously taken away and junked.

Bell Model 50 Convert-O-Plane - 1945 proposal for a jet-convertible VTOL helicopter for the US Navy, unbuilt.

Bell Model 51 - Unbuilt liaison helicopter for ground forces, proposed to US Army.

Bell Model 54 - Four-seat utility helicopter to meet a requirement for liaison and utlilty helicopter for the US Army and US Air Force. Powered by a 275 hp Continental XO-470-5 piston engine. No orders were placed and the project was cancelled in 1950.

  • XR-15 / XR-15-BE - (s/n 46-530/532) Military designation for three Model 54s for evaluation.
  • XH-15 / XH-15-BE - 1948 designation for the XR-15 before delivery.

Bell Model 61 / HSL  - Tandem-rotor ASW helicopter for hunting and destroying submarines with the Fairchild AUM-2 Petrel air-to-underwater missile. Powered by a Pratt & Whitney R-2800 radial engine mounted in the aft fuselage. Didn't see much service for its intended role due to technical problems, but a few HSLs found use as minesweepers and trainers, or for spare parts. None survived.

  • Model 61 - Company designation for the HSL.
  • XHSL-1 - (BuNos. 129133/129135) Three prototypes (Two experimental flight-test and one static-test article).
  • HSL-1 - Production version, 50 built. Equipped with a Bell-developed autopilot, which permitted motionless hovering for long periods, and a dipping ASDIC.
  • Bell D-116 - Proposed civil variant, unbuilt.
  • Bell D-216 - Proposed civil variant, unbuilt.
  • Bell D-238 - Proposed civil variant, unbuilt.

Bell Model 200 Convertiplane - Two-seat single-engine research aircraft, in two-blade and three-blade versions, developed for MX-2105 and RS-602A programs. Designated XH-33 and built as the XV-3 (1953).

Bell Model 201 / XH-13F - See Model 47 list.

Bell Model 204 / 205 "Iroquois" - First turbine-powered helicopter to enter production for the US military. "Bell 204" designation covers aircraft from the XH-40 and YH-40 prototypes to the UH-1A, UH-1B, UH-1C, UH-1E, UH-1F, HH-1K, UH-1L, UH-1P and UH-1M production aircraft.

Note: In U.S. service the G, J, Q, R, S, T, W and Z model designations are used by the AH-1. The UH-1 and AH-1 are considered members of the same H-1 series. The military does not use I (India) or O (Oscar) for aircraft designations to avoid confusion with "one" and "zero" respectively.

  • XH-40 - Three prototypes equipped with 700 shp (520 kW) Lycoming XT-53-L-1 engine.
  • YH-40 / YH-40BF - Six aircraft for evaluation, as XH-40 with 12-inch (300 mm) cabin stretch and other modifications.
  • Bell 533 - One YH-40BF rebuilt as a flight test bed with turbofan engines and wings.
  • H-40 - Initial designation by the US Army, changed to HU-1.
  • HU-1 / HU-1A - Initial production model, redesignated as the UH-1A in 1962. 182 built. "HU-1" is the origin of the nickname "Huey".
  • TH-1A - UH-1A with dual controls and blind-flying instruments, 14 conversions.
  • XH-1A - Single UH-1A redesignated for grenade-launcher testing in 1960.
  • RH-2 (Research Helicopter 2) - One UH-1A was used as a flying laboratory for new instrument and control systems. Installations included an electronic control system and high-resolution radar in a large fairing above the flight deck, enabling the pilot to detect obstacles ahead of the aircraft in bad visibility.
  • HU-1B - Upgraded HU-1A, various external and rotor improvements. Redesignated UH-1B in 1962. 1014 built plus four prototypes designated YUH-1B.
  • NUH-1B - Single test aircraft, serial number 64-18261.
  • Bell 204B - Civil or military utility transport helicopter, derived from the UH-1B. Powered by a T53-09A, max weight was 8,500 lbs, max passengers, 10.
  • Agusta-Bell AB-204 - Civil or military 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 - Civil or military utility transport helicopter. Built under licence in Japan by Fuji Heavy Industries. Used by the Japan Ground Self Defense Force under the name Hiyodori.
  • UH-1C - variant intended strictly for the gunship role. It is an UH-1B with improved engine, modified blades and rotor-head for better performance in the gunship role. 767 built.
  • YUH-1D - Seven pre-production prototypes of the UH-1D.
  • UH-1D - Initial Bell 205 production model. Designed as a troop carrier to replace the CH-34 then in US Army service. 2008 built many later converted to UH-1H standard.
  • HH-1D - Army crash rescue variant of UH-1D.
  • UH-1E - UH-1B/C for USMC with different avionics and equipment. 192 built.
  • NUH-1E - UH-1E configured for testing.
  • TH-1E- UH-1C configured for Marine Corps training. Twenty were built in 1965.
  • H-48 / UH-1F - UH-1B/C for USAF with General Electric T58-GE-3 engine of 1,325 shp (988 kW). 120 built. Originally designated H-48.
  • TH-1F - Instrument and Rescue Trainer based on the UH-1F for the USAF. 26 built.
  • UH-1H - Improved UH-1D with a Lycoming T53-L-13 engine of 1,400 shp (1,000 kW). 5435 built.
  • CUH-1H  - Canadian Forces designation for the UH-1H utility transport helicopter. Redesignated CH-118. A total of 10 built.
  • 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. A total of 30 built.
  • 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.
  • UH-1G - Unofficial name applied locally to at least one armed UH-1H by Cambodia.
  • UH-1J - Improved Japanese version of the UH-1H built under license in Japan by Fuji was locally given the designation UH-1J. Among improvements were an Allison T53-L-703 turboshaft engine providing 1,343 kW (1,800 shp), a vibration-reduction system, infrared countermeasures, and a night-vision-goggle (NVG) compatible ****pit.
  • 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. A total of 45 were built.
  • UH-1L - Utility variant of the TH-1L. Eight were built.
  • UH-1M - Gunship specific UH-1C upgrade with Lycoming T53-L-13 engine of 1,400 shp (1,000 kW).
  • UH-1N - Initial Bell 212 production model, the Bell "Twin Pac" twin-engined Huey.
  • 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".
  • EH-1U - Two UH-1H aircraft modified for Multiple Target Electronic Warfare System (MULTEWS).
  • UH-1V - Aeromedical evacuation, rescue version for the US Army.
  • EH-1X - Ten Electronic warfare UH-1Hs converted under "Quick Fix IIA".
  • UH-1Y - Upgraded variant developed from existing upgraded late model UH-1Ns, with additional emphasis on commonality with the AH-1Z.
  • Bell 205A-1 - Military utility transport helicopter version, initial version based on the UH-1H.
  • Bell 205A-1A - As 205A-1, but with armament hardpoints and military avionics. Produced specifically for Israeli contract.
  • Agusta-Bell 205 - Military utility transport helicopter. Built under license in Italy by Agusta.
  • AIDC UH-1H - Military utility transport helicopter. Built under license in Taiwan by Aerospace Industrial Development Corporation.
  • Dornier UH-1D - Military utility transport helicopter. Built under license in Germany by Dornier Flugzeugwerke.
  • Fuji-Bell 205A-1 - Military utility transport helicopter. Built under licence in Japan by Fuji. Used by the Japanese Ground Self Defense Force under the designation HU-1H.
  • Bell 211 "Huey Tug" - Up-rated dynamic system and larger wide chord blades, the Bell 211 was offered for use as the US Army's prime artillery mover, but not taken up.
  • 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.
  • UH-1/T700 Ultra Huey - Upgraded commercial version, fitted with a 1,400-kW (1900-shp) General Electric T700-GE-701C turboshaft engine.
  • 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 - 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.
  • 205A++ - Field upgraded 205A utilizing a T53-17 engine and a 212 rotor system. Similar to the production 205B and 210.
  • Advanced 205B - Proposed upgraded Japanese version.
  • 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.
  • Huey 800 - Upgraded commercial version, fitted with an LHTEC T800 turboshaft engine.
  • Bell 212 - Bell Helicopters company designation for the UH-1N.
  • 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-engined Bell 214ST.
  • Bell 412 - Bell 212 with a four-bladed semi-rigid rotor system.
  • Panha Shabaviz 2-75 - Unlicensed version made by Panha in Iran.

To Rotorwash: If I got any of these wrong or I'm missing any, can you please help me improve this list? Thanks!

Bell Model 206 / HO-4 / YOH-4A / - Four-seat lightweight observation helicopter powered by a 250hp Allison T63 turboshaft engine. Produced for the US Army Light Observation Helicopter (LOH) program, first flown 8 December, 1962. Five delivered; originally designated HO-4 by the Army but subsequently redesignated OH-4A. Evaluated against Hiller and Hughes prototypes. No further production.

After losing the LOH competition, Bell redesigned the airframe and successfully marketed the aircraft commercially as the five-seat Bell 206A JetRanger. The new design was eventually selected by the Army as the OH-58 Kiowa.

  • Bell 206A- Initial production version, powered by an Allison 250-C18 turboshaft engine. FAA-certified in 1966. Selected as theOH-58A Kiowain 1968.
  • Agusta-Bell 206A- License-built in Italy
  • Bell 206A-1- OH-58A aircraft that are reverse-modified for FAA civil certification.
  • Agusta-Bell 206A-1- License-built in Italy
  • Bell 206B- Upgraded Allison 250-C20 engine.
  • Agusta-Bell 206B- License-built in Italy
  • Bell 206B-2- Bell 206B models upgraded with Bell 206B-3 improvements.
  • Bell 206B-3- Upgraded Allison 250-C20J engine and added 2 inches (51 mm) to tail rotor diameter for yaw control.
  • Bell 206L LongRanger- Stretched, seven seat configuration, powered by an Allison 250-C20B turboshaft engine.
  • Agusta-Bell 206L LongRanger— License-built in Italy
  • Bell 206L-1 LongRanger II- Higher-powered version, powered by an Allison 250-C28 turboshaft engine.
  • Agusta-Bell 206L-1- License-built in Italy.
  • Bell 206L-1+ LongRanger- Bell modifications, including 250-C30P engine, to upgrade aircraft to 206L-4 configuration.
  • Bell 206L-3 LongRanger III- Powered by an Allison 250-C30P turboshaft engine.
  • Agusta-Bell 206L-3- License-built in Italy.
  • Bell 206L-3+ LongRanger- Bell modifications to upgrade aircraft to 206L-4 configuration.
  • Bell 206L-4 LongRanger IV- Improved version, 250-C30P engine and transmission upgrade.
  • Bell 206LT TwinRanger- Twin-engined conversions and new-builds of the 206L; replaced by the Bell 427.
  • Bell 407- See Bell Model 407 list.
  • Bell 417- upgraded 407 with bigger engine; project cancelled.
  • Bell 206AS- Export version for the Chilean Navy.
  • Bell CH-139 JetRanger- Canadian military designation for the Bell 206B-3.
  • OH-58 Kiowa- 4-seat light observation helicopter that replaced the OH-6A Cayuse. 
    • OH-58A - Initial production version. During its Vietnam development, it was fitted with the 7.62mm M134 Minigun. In 1978, OH-58A aircraft began to be converted to the same engine and dynamic components as the OH-58C. And, in 1992, 76 OH-58A were modified with another engine upgrade, a thermal imaging system, a communications package for law enforcement, enhanced navigational equipment and high skid gear as part of the Army National Guard's (ARNG) Counter-Drug RAID program.
    • COH-58A / CH-136 Kiowa - 74 OH-58As delivered to the Canadian Armed Forces.
    • OH-58B / CAC CA-32 - Export version for the Austrian Air Force, equivalent to the Bell 206B-1.
    • OH-58C  - Equipped with a more robust engine and unique IR suppression systems mounted on turbine exhaust. Early "C" models featured flat-panel windscreens as an attempt to reduce glint from the sun, which could give away the aircraft's location to an enemy. The windscreens had a negative effect of limiting the forward view of the crew, a previous strength of the original design. Also equipped with a larger instrument panel with Night Vision Goggle (NVG) compatible ****pit lighting. First U.S. Army scout helicopter to be equipped with the AN/APR-39 radar detector. Some were armed with two AIM-92 Stingers; these are sometimes referred to as OH-58C/S, the "S" referring to the Stinger installation. Called Air-To-Air Stinger (ATAS), the weapon system was intended to provide an air defense capability.
    • OH-58C LCH - Equipped with LCH (Light Combat Helicopter) kit; consisted of provisions to carry and fire external stores, and an air-transportablity kit, which consisted of flolding skids, folding elevators and a folding vertical fin. M197 gun from a Cobra was mouted where the co-pilot seat used to be, with the ammo drum in the rear seat area. Video camera above pilot seat, which served as the gunsight (there was a video monitor in the ****pit). The heilcopter also had a pitch-axis SCAS (Stability and Control Augmentation System) to compensate for gun recoil. Test program took place around the 1980s. The aircraft pitched severly nose-down when the gun was fired, which made it impossible to keep it on target. Also, large amounts of gun gasses entered the ****pit. Project was abandoned and later the aircraft was reverted back to standard OH-58C.
    • OH-58D "Kiowa Warrior" / AH-58D / MH-58D - (Bell 406) Result of the Army Helicopter Improvement Program (AHIP). Upgraded transmission and engine. Introduced the distinctive Mast-Mounted Sight (MMS) above the rotor system, and a mixed glass ****pit, with traditional instruments identified as "standby" for emergency use. Bell 406CS "Combat Scout" was based on the OH-58D (sometimes referred to as the MH-58D). Fifteen aircraft were sold to Saudi Arabia. A roof-mounted Saab HeliTOW sight system was opted for in place of the MMS. The 406CS also had detachable weapon hardpoints on each side. 
      ----- AH-58D was an OH-58D operated by Task Force 118 (4th Squadron, 17th Cavalry), modified with armament in support of Operation Prime Chance. The weapons and fire control systems would become the basis for the Kiowa Warrior. "AH-58D" is not an official DOD aircraft designation, but is used by the Army in reference to these aircraft.
      ----- The Kiowa Warrior, sometimes referred to by its acronym KW, is the armed version of the OH-58D Kiowa. The main difference that distinguishes the Kiowa Warrior from the original AHIP aircraft is a universal weapons pylon found mounted on both sides of the aircraft. These pylons are capable of carrying combinations of AGM-114 Hellfire missiles, air-to-air Stinger (ATAS) missiles, 7-shot 2.75 in (70 mm) Hydra-70 rocket pods, and an M296 .50 caliber machine gun. The Kiowa Warrior upgrade also includes improvements in available power, navigation, communication and survivability, as well as modifications to improve the aircraft's deployability. 
    • OH-58F - Planned upgrade of Kiowa Warrior to extend the design's service until 2025. Planned ****pit and Sensor Upgrade Program (CASUP) features a nose-mounted targeting and surveillance system rather than the mast-mounted sensor used on the OH-58D. The AAS-53 Common Sensor Payload includes an advanced infrared camera, color Electro-Optical camera, and image intensifier. Additional enhancements include a Force Battle Command Brigade and Below (FBCB2) display screen and dual-channel, full-authority digital engine-controller. Will have Level 2 Manned-Unmanned teaming, increased armor protection, common missile warning system, and dual-independent advanced moving maps.
    • OH-58X - A modification of the fourth development OH-58D (s/n 69-16322) with partial stealth features and a chin-mounted McDonnell-Douglas Electronics Systems turret as a night piloting system; including a Kodak FLIR system with a 30-degree field of view. Avionics systems were consolidated and moved to the nose, making room for a passenger seat in the rear. No aircraft were produced.
  • TH-57A - 40 commercial Bell 206A aircraft purchased as the primary U.S. Navy helicopter trainer in January 1968, designated "Sea Ranger".
  • 206L TexasRanger - proposed export military version, only a demonstrator was built in 1981.
  • TH-57B - 45 commercial Bell 206B-3 helicopters purchased in 1989 as replacements for the TH-57A for primary training under visual flight rules.
  • TH-57C - 71 commercial Bell 206B-3 helicopters purchased beginning prior to 1985 with ****pits configured for advanced training under instrument flight rules.
  • TH-57D - Planned upgrade program to convert TH-57B and TH-57C to a single standard digital ****pit.
  • TH-67 Creek - (Bell designationTH-206)137 commercial Bell 206B-3 purchased in 1993 as the primary helicopter trainer for the U.S. Army. 35 in VFR configuration and 102 in IFR configuration.

Bell Model 207 "Sioux Scout" -  Modified Bell 47J developed under contract from the US Army as a proof-of-concept demonstrator for the D-255 helicopter gunship design. Featured a tandem-seat ****pit, stub wings, and a chin-mounted twin 7.62mm M60 machine guns. Was evaluated by US Army with impressive results, though it lacked true combat capability.

---- For the D-255 and D-262, please see the D list!

Bell Model 208 / Model 212 / UH-1N - See Model 204/205 list.

Bell Model 209 / AH-1 "Cobra" - (or "HueyCobra" / "Cobra Snake") Two-blade, single-engine attack helicopter sharing a common engine, transmission, and rotor system with the older UH-1. 

  • Model 209 - Original AH-1G prototype with retractable skid landing gear. This model number is also used by the FAA for the civilian registration of former U.S. Army AH-1s used in firefighting service.
  • AH-1G HueyCobra - Initial 1966 production model gunship for the US Army, with one 1,400 shp (1,000 kW) 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.
  • Z.14 HueyCobra - Spanish Navy designation of the AH-1G.
  • YAH-1Q - Eight AH-1Gs with XM26 Telescopic Sight Unit (TSU) and two M56 TOW 4-pack launchers.
  • AH-1Q HueyCobra - Equipped with the M65 TOW/Cobra missile subsystem, M65 Telescopic Sight Unit (TSU), and M73 Reflex sight. All future versions will be equipped with the TSU and be equipped to fire the TOW missile subsystem.
  • YAH-1R - AH-1G powered by a T53-L-703 engine without TOW system.
  • YAH-1S - AH-1Q upgrade and TOW system.
  • AH-1S - The baseline AH-1S is an AH-1Q upgraded with a 1,800 shp (1,300 kW) T53-L-703 turboshaft engine. The AH-1S is also referred to as the "Improved AH-1S", "AH-1S Modified", or "AH-1S(MOD)" prior to 1988. (Prior to 1988, all upgraded aircraft were referred to as variants of the AH-1S.)
  • AH-1P - 100 production aircraft with composite rotors, flat plate glass ****pit, and improved ****pit 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. These improvements are considered Step 1 of the AH-1S upgrade program.
  • 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. These improvements are considered Step 2 of the AH-1S upgrade program. AH-1E aircraft included the M147 Rocket Management Subsystem (RMS) to fire 2.75-inch (70 mm) rockets.
  • AH-1F - 143 production aircraft and 387 converted AH-1G Cobras. The AH-1F incorporates all Step 1 and 2 upgrades to the AH-1S. It also featured Step 3 upgrades: a head-up display, a laser rangefinder, an infrared jammer mounted above the engine exhaust, and an infrared suppressing engine exhaust system, and the M143 Air Data Subsystem (ADS). The AH-1F is also referred to as the "Modernized AH-1S", "AH-1S Modernized Cobra", or "AH-1S(MC)" prior to 1988.
  • QAH-1S - A target drone conversion of the AH-1S by Bell-Bristol Aerospace under a joint US and Canadian development program started in 1994. Honeywell further modified the QAH-1S into the Hokum-X by installing systems and hardware to allow it to simulate the Russian Kamov Ka-50 attack helicopter. Three Hokum-Xs were completed from 1998-2001.
  • Model 249 - Experimental demonstrator version fitted with a four-bladed rotor system, an uprated engine and experimental equipment, including Hellfire missiles.
  • Bell 309 KingCobra - Experimental all-weather version based on the AH-1G single-engine and AH-1J twin-engine designs. Two Bell 309s were produced; the first was powered by a PW&C T400-CP-400 Twin-Pac engine set and the second was powered by a Lycoming T-55-L-7C engine.

Bell 209 "Super Cobra" - Twin-engine attack helicopter based on the US Army's AH-1 Cobra.

  • AH-1J SeaCobra - Original twin-engine version.
  • AH-1J International - Export version of the AH-1J SeaCobra.
  • AH-1T Improved SeaCobra - Improved version with extended tailboom and fuselage and an upgraded transmission and engines.
  • AH-1W SuperCobra - ("Whiskey Cobra"), day/night version with more powerful engines and advanced weapons capability.
  • AH-1(4B)W Viper - "Four-Bladed Whiskey" test version with a 4-bladed bearingless composite main rotor based on Bell 680 rotor. A prototype was converted from AH-1T 161022.
  • MH-1W - In April 1998, Bell revealed a reconnaissance, armed escort and fire support 'multimission' version of the SuperCobra under this designation. Evolved in response to a perceived need for armed helicopters to undertake anti-drug operations, marketing efforts principally aimed at Latin American countries, with presentations to Argentina, Brazil, Chile, Colombia and Venezuela. Configuration includes a nose-mounted sighting system, with a FLIRStar Safire FLIR sensor, laser range-finder, video recorder and automatic target tracker. Proposed weaponry includes a 20mm cannon as well as 12.7mm gun pods and up to four 70mm rocket pods, but excludes anti-armour missiles and air-to-air missiles.
  • AH-1Z Viper - A new variant nicknamed "Zulu Cobra", and developed in conjunction with the UH-1Y Venom for the H-1 upgrade program. The variant includes an upgraded 4-blade main rotor and adds the Night Targeting System (NTS).
  • CobraVenom - Proposed version for the United Kingdom.
  • AH-1RO Dracula - Derivative of AH-1W for Romania, which intended to purchase initial batch of 96. Project abandoned by Bell in fourth quarter of 1999.
  • 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.
  • ARH-1Z - Designation allocated to version unsuccessfully proposed for Australian Army Project Air 87 armed reconnaissance helicopter.
  • Panha 2091 - Unlicensed Iranian upgrade of the AH-1J International.

Bell Model 210 - ?

Bell Model 211 "Huey Tug" - See Model 204/205 list.

Bell Model 214 / 214B Big Lifter - See Model 204/205 list.

Bell Model 214ST - More powerful 214A. Production examples were powered by 2,930shp Avco Lycoming LTC4B-8Ds driving a large five-blade rotor with Noda-Matic head. In 1982, the Model 214ST received FAA and CAA type certification for VFR and IFR operations. A version with wheel undercarriage was certificated in March 1983.

Bell Model 215 - ?

Bell Model 216 - ? (Possible mix-up with design number D-216)

Bell Model 222 -  Twin-engined light helicopter. A mock-up of the new helicopter was displayed in January 1974 at a helicopter convention. Pototype first flew on August 13, 1976. First light commercial twin turbine engine helicopter developed in the United States.  

---- A cosmetically-modified version played the role of Airwolf in the 1980's TV series of the same name.

  • Bell 222 / 222A - First production variants, sometimes unofficially called a Bell 222A to distinguish it from the Bell 222B. Powered by two (461 kW takeoff rated, 441 kW max continuous rated) Honeywell (formerly Lycoming) LTS-101-650C-3 turboshafts.
  • Bell 222B  - In 1982 the 222 was given a power upgrade (two Honeywell (formerly Lycoming) LTS-101-750Cs with takeoff rating of 505 kW each), a larger main rotor, and was renamed the Bell 222B.
  • Bell 222B Excutive - This model had improved systems and a luxury interior.
  • Bell 222UT - A 222B variant with skids, introduced in 1983. The lack of retractable landing gear allowed for larger auxiliary fuel tanks.
  • Bell 222X - At the end of 1988, a multi-mission variant of the Model 222, called Model 222X, was proposed among several contenders in order to replace the CH-136 and CH-139 of the Canadian Armed Forces but no decision had been taken by early 1991.
  • Bell 222SP - During the 1990s, some Bell 222s were modified with the 222B's engines and 230's Allison 250-C30G engines for improved single engine (engine-out) performance, and redesignated as 222SPs.

Bell Model 230 - In 1991 the Model 222B design was updated, given more powerful engine versions, and renamed the Bell 230. Production ended in 1995.

  • Bell 230 - Initial production designation.
  • Bell 230 Executive- Executive transport version.
  • Bell 230 Utility - Utility transport version.
  • Bell 230 EMS - Air ambulance version, equipped with one or two stretchers.
  • Bell 230 Military - Variable configurations. Demonstrator (N230CN) leased for six months by Chilean Navy 1993-94, equipped for shipboard evaluation with Indal ASIST deck recovery system, auxiliary fuel tanks, Breeze Eastern BL 1600 rescue hoist, AlliedSignal RDR 1500B radar, Teledyne AN/APX-101 transponder, AlliedSignal KHF-950 SSB transceiver, Magnavox AN/ARC-164 UHF, Rockwell AN/ARC-186 VHF, Spectrolab SX-5 Starburst searchlight, Agema thermal imager in Heli-Dyne turret, Honeywell EDZ-705 EFIS with SPZ-7000 AFCS, Trimble TNL 7880 GPS/Omega and Flight Visions FV2000 HUD.
  • Bell 430 - In 1994 (NOT 1995 as Wikipedia says!) the Bell 430, a stretched 230 (adding another seating row), was launched, with more powerful 808shp Allison 250-C40 turboshaft engines and a four-blade '680' bearingless main rotor. First flight 25 October, 1994.

Bell Model 240 UTTAS - Bell's proposal for the UTTAS competition in 1972; a twin-engine, fourteen-seat helicopter larger than the UH-1, with four-blade main and tail rotors. Was to have two 1500shp General Electric T700-GE-700 turboshafts, a fail-safe modular transmission, a four-bladed swept-tip gimbaled rotor with a new Wortmann aerofoil for enhanced aerodynamic efficiency. Lost to the Sikorsky S-70 "Black Hawk".

Bell Model 280 - Unbuilt project for a twin-engined, wide-body utility version of the Cobra.

Bell Model 301 / XV-15 - VTOL Tilt-rotor aircraft with two wingtip-mounted 1.550shp Avco Lycoming LTC1K-4K turboshafts, each fitted with 25ft diameter three-blade propeller-rotors. It was the second successful experimental tiltrotor aircraft and the first to demonstrate the concept's high speed performance relative to conventional helicopters.

  • No. 1 - (c/n 00001, N702NA) First prototype. On 3 March, 1977, the first simulated transition was a complete success and the first free flight took place on 3 May, 1977, at Fort Worth. The prototype was then tested for six weeks in the large wind tunnel of the Ames Research Center at Moffett Field, California. During these tests various configurations of the aircraft were evaluated including forward flight up to 330km/h, vertical flight up to 230km/h, autorotation up to 150km/h etc.
  • No. 2 - (c/n 00002, N703NA) Second prototype. On 21 April, 1980, No.2 prototype reached 485km/h at 2530m and, in one year of testing, aircraft No.2 logged 40 hours flying. All these flights proved that the basic behaviour of the aircraft was good and that transition could be made within a large range of speeds. The first prototype was then evaluated by NASA and US Army pilots in order to sample operational applications and, in October 1981, the second aircraft began flying at the NASA Ames Dryden Research Center at Moffett Field to expand the flight envelope. 

    Under the new JVX programme Joint Services Advanced Vertical Lift Aircraft Program) the XV-15 served as test-bed. In direct relation to the JVX programme, XV-15 No.1 was tested in Fort Huachuca to evaluate its ability to accomplish SEMA missions (Special Electronics Mission Aircraft); the aircraft was sent to China Lake to measure its radar signature and, on 2-5 August, 1982, off San Diego, Lieut-Cdr John Ball and Dorman Cannon conducted the initial shipboard evaluation on board the amphibious assault ship USS Tripoli (LPH-10). This evaluation included vertical and short rolling take-offs, hovering flights and vertical landings. On this occasion, one of the 54 XV-15 landings was the ship's 60.000th.

    The aircraft was then sent back to Fort Worth to undergo a complete overhaul and to receive several modifications. By the end of August 1982, the two prototypes had logged 289 hours of flight testing. The two XV-15s were then used in a research programme to explore the limits of the operational flight envelope and assess its application to military and civil transport needs. Late in 1987, the XV-15, piloted by Dorman Cannon and Don Borge, demonstrated its capabilities in the civil transport role at Washington and Chicago. The Chicago demonstration was conducted from Miegs Field in the very heart of the city.

    From November 1987, XV-15 No.2 was tested with new rotor blades made of composite materials (glass and carbon fibres) built by Boeing Helicopters Company. New advanced technology rotor blades, built of carbon fibre and Nomex, and developed by Boeing Helicopters as part of the V-22 Osprey programme, were first flown on die second XV-15 on 13 November, 1987. Some 30 hours of flight-testing were planned in 1988.

Sorry for that long explaination of #2. I couldn't make it any more brief without sacrificing relavant info. hmm

Bell Model 308 - ?

Bell Model 309 "King Cobra" - See Model 209 / AH-1 list.

Bell MAPL Model 351 - Five-seat, light single-engine helicopter to succeed the 206B-3. Employs technologies of the MAPL (Modular Affordable Product Line) program, aimed to reduce development and production costs and provide the customer with affordability and safety benefits, as well as manufacturing aircraft using componets that can be mixed and matched for certain custemer requirments.

Bell MAPL Model 381 - Eight-seat, light single-engine helicopter of the MAPL program to succeed the 206L-4.

Bell MAPL Model 382 - Eight-seat, medium twin-engine helicopter of the MAPL program.

Bell Model 400 TwinRanger

Bell Model 440

Bell Model 406 / OH-58D "Kiowa Warrior"

Bell Model 407

Bell Model 407 ARH

Bell Model 409 / YAH-63

Bell Model 412

Bell Model 417

Bell Model 427

Bell MAPL Model 429 "Global Ranger"

Bell Model 430 - See Model 230 list.

Bell Model 442

Bell Model 460

Bell Model 525 "Relentless"

Bell Model 533

Bell Model 570

Bell Model 619

Bell Model 626

Bell Model 646 RSRA

Bell Model 680

Bell Model 940A

Bell TH-67 "Creek"

Bell ARH-70

Bell JRX

Bell D-18

Bell D-79

Bell D-82A/B

Bell D-100

Bell D-104

Bell D-109

Bell D-110

Bell D-116 (Model 61)

Bell D-118

Bell D-190

Bell D-200

Bell D-205

Bell D-207

Bell D-212

Bell D-215

Bell D-216 (HSL)

Bell D-218

Bell D-222

Bell D-223

Bell D-224

Bell D-225

Bell D-226

Bell D-229D

Bell D-230

Bell D-232

Bell D-238 (HSL)

Bell D-240

Bell D-242

Bell D-243

Bell D-244

Bell D-245

Bell D-250 (designation re-used for OH-4)

Bell D-2005/D-2022, D-246A, D-266

Bell D-252

Bell D-255, D-262 "Iroquios Warrior"

Bell D-267

Bell D-270/A

Bell D-271

Bell D-272

Bell D-276

Bell D-280 (Model 280)

Bell D-292 ACAP

Bell D-300

Bell D-301

Bell D-302

Bell D-303, D-326 "Clipper"

Bell D-305

Bell D-306

Bell D-310

Bell D-311

Bell D-312

Bell D-313

Bell D-314

Bell D-315A/B

Bell D-316

Bell D-317

Bell D-318

Bell D-319

Bell D-320

Bell D-321

Bell D-322

Bell D-326

Bell D-327

Bell D-329

Bell D-340

Bell D-600

Bell D-604

Bell D-1007

Bell D-2001

Bell D-2004

Bell D-2014

Bell D-2020

Bell D-2021A/B

Bell D-2064

Bell D-2078

Bell D-2127

Bell D-2130 (?)

Bell D-2149-1

Bell D-2172 (?)

Bell D-2218 (?)

Bell D-2239

Bell D-2240

Bell D-2249

Bell D-2250

Bell D-2251

Bell D-2278

Bell D-2285

Bell D-2289

Bell D-2300

Bell D-2301

Bell D-2330

Bell D-2332

Bell D-2410

Bell D-2424

Bell D-2447

Bell / McDonnell-Douglas LHX

Bell XV-3

Bell Model D2127 / X-22

Bell / Boeing-Vertol V-22 "Osprey"

Agusta / Bell 609

Bell BAT

Bell-Boeing "Pointer"

Bell "Eagle Eye"

Bell CTR-22A/B

Bell CTR-22C/D

Bell CTR-800

Bell CTR-1900

Bell CTR-7500

Bell QTR Quad Tiltrotor

Bell "Air Scooter"

Bell "Trailrotor"





-- Edited by hannetonIII on Friday 23rd of March 2012 02:20:12 AM

-- Edited by hannetonIII on Saturday 24th of March 2012 03:34:17 AM

-- Edited by hannetonIII on Monday 26th of March 2012 03:26:08 AM

-- Edited by hannetonIII on Monday 26th of March 2012 03:57:37 AM

-- Edited by hannetonIII on Monday 26th of March 2012 04:05:34 AM

-- Edited by hannetonIII on Tuesday 27th of March 2012 09:34:04 PM

-- Edited by hannetonIII on Tuesday 27th of March 2012 11:22:48 PM

-- Edited by hannetonIII on Tuesday 29th of May 2012 07:37:47 PM

-- Edited by hannetonIII on Thursday 20th of September 2012 02:13:37 PM



Status: Offline
Posts: 3528
Date: Mar 23, 2012

Good lord, pal, you got quite an adventure ahead of you!! biggrin


lllll   As of 2019 I have transitioned; My name is now Rei. Please don't deadname or misgender me, thank you. <3   lllll

Veteran Member - Level 2

Status: Offline
Posts: 219
Date: Mar 23, 2012

Yeah, I kina regret starting it so early instead of my original plans to do it this weekend. I'm dead tired.


Former Deputy Administrator

Status: Offline
Posts: 881
Date: Mar 23, 2012

Omigod. So much missing there... Let's start with Model numbers.

The two-place helicopter with coaxial rotors was Model 49.

Also missing from your list are the following:

Model 46: two-place single engine two-bladed helicopter with Lycoming engine; not built (1946).
Model 48 Feederliner: commercial development of XR-12; not built.
Model 50 Convert-O-Plane: VTOL jet convertible helicopter, proposed to US Navy; not built (1945).
Model 51: liaison helicopter for ground forces, proposed to US Army; not built.

Model 200 Convertiplane: two-place single-engine research aircraft, in two-blade and three-blade versions, developed for MX-2105 and RS-602A programs; designated  XH-33 and built as the XV-3 (1953).
Model 212: Twin Two-Twelve (civilian), UH-1N Twin Huey (US military); also Anafa, AB-212 and AB-212 ASW
Model 249 Cobra II: PAH-II version of YAH-1S; later to Army/Bell ARTI (Advanced Rotorcraft Technology Integration) program
Model 266: V/STOL transport derived from XV-3, for USAF CARA (Combat Aircrew Recovery Aircraft) and LIT (Light Intra-theater Transport) programs; initially developed as the D-266; not built (1966).
Model 292: found as an alternate designation for the D-292 ACAP prototypes (1985).

Model 300: V/STOL Tilt Rotor Study, R&D-developed project leading to the XV-15, developed from D-300; not built.
Model 306: designation quoted for what is also the D-306; not built (1974).
Model 321: designation quoted for what is also the D-321; not built.
Model 323: tilt-rotor project, no details (presumably similar to the D-323).
Model 392: no details; Bell "H-392" mentioned in

Model 440: found as the Bell "H-440", no details.
Model 445: U.S. Army ARH-70A Arapaho helicopter developed from Jet Ranger series for ARH program; 4 built (2006).
Model 449 Viper (Super Cobra): latest developement of the Cobra series, features new, quieter four-blade composite rotor with automatic folding mechanism.
Model 450 Venom (Super Huey): remanufactured UH-1N helos featuring new, quieter four-blade composite rotor with automatic folding mechanism.

Model 601: civil tilt-rotor project ; not built (1997).
Model 604: tilt-rotor project, no details; also found as the D-604; not built.
Model 608: Light Anti Submarine Helicopter (LASH) proposal; not built.
Model 609: six-to-nine passenger commercial tilt-rotor aircraft developed from design D-600, became BA609, now AW609.
HV-609: SAR Tiltrotor proposed to US Coast Guard; not built, but one XV-15 tested by USCG for that program.
T-609: Tiltrotor Trainer aimed at reducing fleet training costs, student time in training pipeline and risks; not built.
UC-609: Utility Tiltrotor offered for missions where VTOL capability needs to be combined with high speed and  forward flight ability
Model AB-620: 22-seat tilt-rotor proposed for CQTR program; project only.
Model 629: HELMS (Helicopter Multifunction System) program (modified UH-1C and UH-1M); 2 conversions (1971).

Model 800 Huey II: proposed modernization program for the UH-1H; one demonstrator converted (1993)

Model 901-X Osprey: YCV-22A prototypes of the V-22 series.
Model 901 Osprey: V-22 tilt-rotor production, developed from XV-15 for the US Navy (CV-22A), Marines (MV-22A) and Coast Guard (HV-22A) (the latter cancelled).
Model TR911X Eagle Eye: VTUAV demonstrator
Model TR916 Eagle Eye: US Coast Guard variant, designated HV-911 in service.
Model TR918 Eagle Eye.


Model 115: autopilots for US Navy ASW helicopter
Model 217: turboshafts
Model 540: two-bladed door-hing type rotor
Model 680: four-blade bearingless rotor system (not a helicopter!!)

-- Edited by Stargazer2006 on Friday 23rd of March 2012 10:14:33 AM



Former Deputy Administrator

Status: Offline
Posts: 881
Date: Mar 23, 2012

On to Design Numbers... I've included all the ones I have, not just the missing ones in your list. I've also removed the hyphen (dash) between the prefix and the design number, since it was more often done that way on Bell documents. The list is neither exhaustive, nor guaranteed 100% flawless, so let anyone feel free to comment, correct or enrich it!

D4: proposed helicopter (1942)
D18: early helicopter project
D34: single-engined two-bladed helicopter proposal for US Navy
D41: helicopter project, no detail (possibly a competitor of the Sikorsky S-51/R-5D)
D76: "rotor plane" for a single occupant (pre-convertiplane design)
D79: single-place rotor plane
D82A: transport rotor plane; gross weight: 23,000 lbs.
D82B: rotor plane for rescue; gross weight: 23,000 lbs.
D100: single-engine research rotor plane (developed D79)
D104/A: "XHPL" proposal for ASW helicopter for US Navy (also projected civil version of Model 61 twin anti-sub helicopter?)
D109 Convert-O-Plane:  VTOL fighter project (related to Model 50?)
D116: a projected civil version of Model 61
D117: assault helicopter proposal for USMC
D118 Convertiplane: project submitted to US Navy; two-place single engine aircraft for observation and reconnaissance
D174: Horizontal Attitude Test Airplane (HTTA), VTOL two-place mid-wing monoplane with fixed landing gear that immediately preceded the X-14 (also appears by mistake as D147)
D181: four-duct ducted propeller assault transport study (led to the X-22)
D182A: twin duct testbed for VTOL ducted propeller assault transport project
D182C: twin duct testbed; trailrotor T-37 COIN conversion project
D188: early tilt-rotor fighter project developed from D139 project but with conventional-type thrust (Navy Type Specification TS-140)
D188A: experimental tilt-jet fighter project (USAF "XF-109" for WS-318A) (Navy "F3L") (same as Model 2000)
D190: VTOL study, Sea Air Rescue (SAR) utility concept with tilt-ducted propellers on each wing, based on D181/182 research
D190/C-130: Air Rescue System VTOL with wing-tip ducted fans, was to be fitted under a specially modified C-130 launch aircraft
D190A: D190 development
D190B: V/STOL Interim Transport Aircraft Weapons System; D190 development, Multi SVVP with two propellers turning in the ring canals
D191: tilt-jet VTOL fighter project
D196: D182C development, VO class observation proposal for US Navy (Type Specification TS-145)
D200: gas turbine-powered helicopter project (or the design number for the XV-3 Convertiplane?)
D205: Cargo Transport Helicopter, turbine-powered (Allison T-38)
D207: cargo convertiplane
D215: attack helicopter proposal
D216: multi-purpose derivative of HSL-1 as 25-seat US Army (attack?) helicopter (also commercial?)
D218: cargo helicopter of twin side-by-side rotor scheme, would have been powered by two R-1820-34 engines
D220: observation-reconnaissance version of XV-3 with two General Electric T58 turbine engines
D222: SAR convertiplane with multi-engines
D223: VTO transport convertiplane for internal and external cargo, with 4 GE XT58 turbines
D224: SAR convertiplane with 3 General Electric ST-112 turbines
D225: SAR convertiplane with 2 Allison T56 turbines
D226: ship-based amphibious observation helicopter (HO) proposal for US Navy
D227: ship-based amphibious observation helicopter (HO) proposal for US Navy
D229D: Flying Crane Helicopter
D230 Aerial Jeep: a VTOL aircraft project with four foldable rotors. Not built. (also found as Flying Jeep)
D232: Tilt-Wing Type Vertical Takeoff and Landing Aircraft proposal
D238: derivative of HSL-1
D242: target activation convertiplane
D243: one- to two-ton cargo convertiplane
D244: utility command convertiplane
D245: forerunner of Cobra
D246/A: medium V/STOL transport convertiplane aircraft study, powered by 4 Lycoming T55-L-5 turbines
D250: four-seat light observation helicopter (LOH), became the Model 206 or Army YHO-4 (also to Navy Type Specification TS-152)
D252: Tri-Service military VTOL transport aircraft: squared fuselage section,  2x T64 turbines; entered into Tri-Service competition
D252A: NATO version of D252
D253: related to the Cobra helicopter
D255: full-size mock-up of Iroquois Warrior
D261: attack two-seater helicopter for AAFSS contest
D262 Iroquois Warrior: attack two-seater for AAFSS contest; the project originated the AH-1 Cobra
D266: proprotor VTOL research aircraft composite pre-design study proposal; light tactical transport developed in response to Army's Composite Aircraft Program; , funded in 1966 & 1967 via US Army Composite Aircraft Program; requirement w/ 2x 2850shp T64-GE / 30-seat short-haul civil aircraft; project ended early 1969 due to lack of funding
D267: first design study for a full-scale tilt-rotor demonstrator; significantly smaller than the D266, and oriented toward commercial rather than military operation
D270/A: design study of Folding-Proprotor VTOL Aircraft: 60,000-lbs. 4-jet (proprotor) heavy transport with wing-tip tilt-rotors
D271: proprotor proof of concept aircraft design
D272: Folding Tilt Rotor / NASA Folding Proprotor Program (proof of concept aircraft design)
D276 Light Twin: helicopter project
D280: project of a wide-bodied Cobra (also found as the Model 280)
D292: light composite materials version of 222 (ACAP program)
D300: CARA (Combat Aircrew Rescue Aircraft) civilian tilt-rotor transport with conventional tail, forerunner of Model 301/XV-15A
D301: military VTOL tilt rotor operational transport with conventional tail, forerunner of Model 301/XV-15A
D302: NASA conceptual design study tilt rotor
D303: "Tri-Engine Tilt Rotor" civilian VTOL transport with H-tail, extended fuselage and jet mounted on top
D305: COD/VOD tilt rotor proposal
D306: business helicopter, 6 to 10 passengers; mock-up built (became the Model 222)
D310: HX study for Navy tilt rotor aircraft
D311: HX study for Marine tilt rotor
D312: large civilian tiltrotor VTOL commercial (passenger) transport with H-tail and square fuselage section (-100, -45, -21 corresponding to the number of passengers)
D313: tiltrotor STOL commercial transport (-100, -45)
D314A: Tiltrotor Army Spectrum study; attack VTOL designed for ground support and FAC duties; AH-1 type ****pit on XV-15 general arrangement
D314B: Tiltrotor Army Spectrum study
D314C: Tiltrotor Army Spectrum study. A light military troop transport VTOL
D314D: Tiltrotor Army Spectrum study. observation VTOL designed for duties similar to OV-1 Mohawk; OV-1 type ****pit on XV-15 general arrangement
D314E: Tiltrotor Army Spectrum study. An uprated military cargo transport version of the D314C and which is technically a medium lift transport
D314F: Tiltrotor Army Spectrum study. Heavily armed attack VTOL with armored ****pit designed for ground attack duties (2 different designs)
D314G: Tiltrotor Army Spectrum study. military VTOL which carries an onboard side looking airborne radar and other sensor units for OV-1-type operations
D315A/B: Tilt rotor HXM aircraft conceptual design study
D316: Air Force combat rescue (C-SAR) mission tilt rotor aircraft
D317: ASH tilt rotor aircraft
D318: LAMPS tilt rotor aircraft
D319: Tilt rotor conceptual designs for RFQ II (resulting from Navy R.F.Q./I.) [D319A, A-1, A(P), B, B(Q), C, D]
D320: Tilt rotor conceptual designs for the U.S.A.F. rescue mission analysis
D321: Tilt-rotor conceptual VTOL design for US Navy V/STOL-A (pre-R.F.Q. activity)
D322: Heavy lift quad tilt-rotor (answering NASA inquiry)
D323: V-tailed assault transport VTOL for US Marines with folding wing and tail
D324: Navy Type A V/STOL
D325: convertiplane project for Navy
D326 Clipper: commercial tiltrotor (passenger transport)
D327: VTOL aircraft  with 10.5 m rotors (diameter) and a capacity for 24 paratroopers > served as a basis for the USMC's V/HXM proposal
D329 BAT: research VTOL, proposal for Army's 1984 LHX light helicopter program ; could not meet the weight requirements. Rotor diameter: 4.87 meters
D340 Pointer: tilt-rotor UAV (1/5th scale flying model of V-22 configuration)
D400: more refined development of X-14 with retractable gear
D400A: development of the above

D600: several tilt-rotor projects; final one was six- to nine-passenger commercial tilt-rotor aircraft (Model 609)

Non-rotorcraft designs:
(for the sake of completion)

D6: design name of Model 32 / XP-77 fighter
D13: competitor project of XP-55 (same as Model 16?)
D35: delta-wing single-seat jet fighter project
D37: swept-wing version of X-1
D37D: said to have been the X-2
D39: P-63 interceptor (or just the L-39 derivative?)
D80: KD-VI target airplane for US Navy
D89: XS-5 or X-5 sonic research aircraft [MX-1095] (Model 60)
D90: fixed-wing, supersonic derivative of the X-5, itself a derivative of the wartime German Messerschmit P.1101
D98: XB-63 Rascal Design Proposal [MX-776B] (Model 56)
D133: a fixed-wing variant of the X-5 design
D139: VTOL day fighter weapon system (preliminary design was larger and more conventional)
D159: X-16 'Bald Eagle' [MX-2147] (Model 67) (see D294)
D163: air-to-surface guided missile weapon system
D171: experimental hypersonic aircraft; design submitted for the X-15 competition
D179: small two-place reconnaissance and observation aircraft design study proposal developed in parallel with D174
D183: Specialized High-Altitude Reconnaissance Weapon System Study: Photography Reconnaissance Subsystem
D228: various studies on Instrumentation, Simulations and Display
D294: alternate design name of X-16 'Bald Eagle' proposal (Model 67)


Unsolved/uncertain designations:

?: WWII era tailsitter project
D22: a "Bell Design 22" appears in the Sara Clark collection at the US National Archives (could also be a confusion with the unbuilt Model 22)
D110?: possibly a development of D109
D137?: possibly a fighter
D138?: twin-boom fighter project?
D143?: twin-boom fighter project?
D212: convertiplane project?
D217G?: no details (or Model 217 G? turboshaft?)
D240: convertiplane project?
?: Composite Research Aircraft Design Study (same as D266?)
D604?: tilt rotor aircraft project?



Veteran Member - Level 2

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Posts: 246
Date: Mar 23, 2012

hannetonIII wrote:
  • Carson Super C-4 - ?


This was a 4-seat version of the Bell 47G by Carson Helicopters powered by a 240hp Franklin 6VS-335A engine.

-- Edited by retroistic on Saturday 24th of March 2012 03:38:37 AM


Veteran Member - Level 2

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Date: Mar 24, 2012

I assume that the model 800 was the UH-1/T800 Prototype.  That bird was a UH-1B and flew in March of 1985.  Here' sthe pamphlet I found on her at Ft. Rucker.  I started to put this one in the "Name the Variant" thread, but that just seemed mean.





Veteran Member - Level 2

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Date: Mar 24, 2012

Stargazer2006 wrote:

Omigod. So much missing there...


I know that's why I put a big bold "UNDER CONSTRUCTION" underneath, because I'm not nearly done witgh it.

Thanks for the additional stuff. smile


Former Deputy Administrator

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Date: Mar 24, 2012

Thanks Ray. Yeah, the designation "Model 800" seems highly dubious indeed.



Veteran Member - Level 2

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Posts: 152
Date: Mar 24, 2012

Its funny how designations work after so many years. Some typos from way back in the day get translated over time as factual designations and it takes straining research to prove them wrong.

I personally find it funny, but I can see how it could frustrate serious researchers!


Dear Princess Celestia,

Today I learned that nopony kicks ass without tanker gas. Nopony!

Your faithful student,

Veteran Member - Level 2

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Date: Mar 24, 2012

fluttercopter wrote:

Its funny how designations work after so many years. Some typos from way back in the day get translated over time as factual designations and it takes straining research to prove them wrong.

I personally find it funny, but I can see how it could frustrate serious researchers!

 There is so much misinformaton out there about different Bell products, I rarely believe anything till I either see it on Bell stationary or talk to the engineer that designed it!



Veteran Member - Level 3

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Date: Mar 25, 2012


D-217G was a gearbox as I think.


Veteran Member - Level 3

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Date: Mar 26, 2012


here is the Bell Model-619 and Model-626.


Former Deputy Administrator

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Date: Mar 26, 2012

hesham, please note that I didn't include Models 619 and 626 because they were already in hannetonIII's initial list.



Veteran Member - Level 2

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Date: Mar 26, 2012

Made more edits. blankstare


Veteran Member - Level 2

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Posts: 246
Date: Apr 29, 2012

Hanneton, are you going to complete this list? You haven't touched in in an awful long time.


Veteran Member - Level 3

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Date: Apr 29, 2012

Wake up call to HannetonIII!!!!!!! smile


Vince Johnson - A merciless enemy but a powerful ally.



Veteran Member - Level 2

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Posts: 219
Date: May 19, 2012

Sorry guys, have a lot to do. I'll try and continue building the list soon.

I'm also a bit dissapointed at how much this site turned to bronyism.


Former Deputy Administrator

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Date: May 19, 2012

You bet!!!



Veteran Member - Level 2

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Date: May 29, 2012

Hey guys, I need some help with the MAPL series. I know with Bell's designation system the 300s indicate third-gen, but I don't know what the MAPL program is about. Help please? Thanks. 


Veteran Member - Level 2

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Date: Jun 1, 2012

hannetonIII wrote:

I know with Bell's designation system the 300s indicate third-gen, 


Yeah, I don't think so. Otherwise we would have 24th-gen designs, e.g. the D-2410! no

-- Edited by fluttercopter on Friday 1st of June 2012 10:27:14 PM


Dear Princess Celestia,

Today I learned that nopony kicks ass without tanker gas. Nopony!

Your faithful student,

Veteran Member - Level 3

Status: Offline
Posts: 483
Date: Jun 2, 2012

It doesn't apply to the design study designations, it applies to the models. And it refers to the generation of design done by the company itself, not all helicopters in general.


We have here the latest in primitive technology.

Internet + Opinions = OMG we are SCREWED!

Former Deputy Administrator

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Date: Jun 2, 2012

I don't buy this "generation" theory. I think the change from the 200+ to 300+, 400+ and so forth corresponds to the type of rotorcraft more than the generation.
The 400 series was created initially to distinguish the four-blade versions from the two-blade ones.
The 900 series was created for the Bell/Boeing collaborative tilt-rotor projects.
However there are many illogical designations and in many cases I'm not sure one should try to see much more to it than random numbers applied when they sound good...




Former Deputy Administrator

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Date: Jun 11, 2012

Stargazer2006 wrote:

However there are many illogical designations and in many cases I'm not sure one should try to see much more to it than random numbers applied when they sound good...


e.g., Sikorsky's S-76 and S-92 helicopters.


Yippie Kai Yay, Mr. Falcon.

Veteran Member - Level 2

Status: Offline
Posts: 219
Date: Jul 18, 2012

Well I would continue building my designations list, but no one has answered my question regarding the MAPL program yet! 

Once I obtain the info, I will gladly continue.

-- Edited by hannetonIII on Thursday 19th of July 2012 02:39:23 AM


Veteran Member - Level 3

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Posts: 296
Date: Jul 19, 2012

Wake up call!!!!! evileye


Vince Johnson - A merciless enemy but a powerful ally.




Former Deputy Administrator

Status: Offline
Posts: 783
Date: Jul 19, 2012

Please stop doing that. It's against the rules to bump a topic with useless "wake-up calls" like this.


Yippie Kai Yay, Mr. Falcon.

Global Moderator

Status: Offline
Posts: 1563
Date: Aug 20, 2012

Just skip them and go to the next! 


Airplanes are beautiful dreams. Engineers turn dreams into reality.

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