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Date: Mar 21, 2009
Bell Helicopters
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I believe this is the entire list. If not, please reply. biggrin




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Designations I found via Secret Projects...


D-34 single-engined two-bladed helicopter proposal for US Navy (Oct. 45)
D-104 "XHPL" proposal for ASW helicopter for US Navy
D-116 assault helicopter proposal for USMC
D-117 assault helicopter proposal for USMC
D-226 ship-based amphibious observation helicopter (HO) proposal for US Navy
D-227 ship-based amphibious observation helicopter (HO) proposal for US Navy



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-airfoil- wrote:

Designations I found via Secret Projects...

D-34 single-engined two-bladed helicopter proposal for US Navy (Oct. 45)
D-104 "XHPL" proposal for ASW helicopter for US Navy
D-116 assault helicopter proposal for USMC
D-117 assault helicopter proposal for USMC
D-226 ship-based amphibious observation helicopter (HO) proposal for US Navy
D-227 ship-based amphibious observation helicopter (HO) proposal for US Navy

 

You forgot the Model-30 helicopter.



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Sarah wrote:

You forgot the Model-30 helicopter.


 

Its already in Stingray's list.



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-airfoil- wrote:

Its already in Stingray's list.


 

And in plain view too, lol! Sorry 'bout that. aww



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Model 49 coaxial-rotor helicopter and Model 50 convertiplane are missing.



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The "D-" list...
D-18 : Transport helicopter study
D-79 : Single-place rotor plane
D-82A : Rotor plane transport
D-82B : Rotor plane rescue
D-100 : Single-engine research rotor plane (developed D-79)
D-104 : Civil HSL
D-109 : CONVERT-O-PLANE VTOL fighter project, 1951
D-110 : Possibly a development of D-109 (?)
D-116 : Civil HSL
D-118 : Convertiplane
D-188A : Early tilt-rotor fighter project developed from D-139 project but with conventional-type thrust
D-190 : VTOL study, rescue concept with tilt-ducted propellers on each wing, based on D-181/182 research (1959)
D-190/C-130 : VTOL with wing-tip ducted fans, was to be fitted under a specially modified C-130 launch aircraft
D-200 : Turbine-powered convertiplane (?)
D-207 : Cargo convertiplane
D-212 : Convertiplane project (?)
D-215 : attack helicopter proposal (?)
D-216 : HSL as a 25-seat commercial helicopter - derivative of HSL-1 as 25-seat US Army (attack?) helicopter (also commercial?)
D-218 : Cargo helicopter with twin side-by-side rotor scheme, would have been powered by two R-1820-34 engines, 1956
D-222 : air rescue convertiplane with multi-engines (1955)
D-223 : vertical takeoff transport convertiplane for internal and external cargo, with 4 GE XT58 turbines (1956)
D-224 : air-rescue convertiplane with 3 General Electric ST-112 turbines (1956)
D-225 : air rescue convertiplane with 2 Allison T56 turbines (1956)
D-230 : AERIAL JEEP, a VTOL aircraft project with four foldable rotors. Not built. (also found as "FLYING JEEP") (1957)
D-232 : tilt wing rotor feasibility study (1957)
D-238 : derivative of HSL-1
D-240 : convertiplane project (?)
D-242 : target activation convertiplane (1959)
D-243 : one- to two-ton cargo convertiplane (1959)
D-244 : utility command convertiplane (1959)
D-245 : forerunner of 'COBRA'
D-246/A : medium transport convertiplane powered by 4 Lycoming T55-L-5 turbines (1959/60)
D-250 : convertiplane project (?)
D-250 : OH-4/B-206 Jet Ranger
D-255 : full-size mock-up of 'IROQUOIS WARRIOR'
D-(?) : 'AIR SCOOTER' ground effects machine (GEM), a one-man unit with a hover height of 2-1/2 inches, cruising speed of 25 mph
D-(?) : 'TRAILROTOR' concept, full-scale testbed project
D-261 : attack two-seater for AAFSS contest (1964)
D-262 : IROQUOIS WARRIOR attack two-seater for AAFSS contest; the project originated the AH-1 COBRA
D-266 : proprotor VTOL research aircraft composite pre-design study proposal; light tactical transport Developed in response to Army's Composite Aircraft Program; requirement w/ 2x 2850shp T64-GE / 30-seat short-haul civil aircraft; project ended early 1969 due to lack of funding (1965)
D-267 : first design study for a full-scale tilt-rotor demonstrator; significantly smaller than the D-266, and oriented toward commercial rather than military operation (1968)
D-270/A : design study for a 60,000-lbs. 4-jet (proprotor) heavy transport with wing-tip tilt-rotors (1969)
D-271 : proprotor proof of concept aircraft design (1969)
D-272 : folding proprotor proof of concept aircraft design (1969)
D-276 : light twin helicopter project
D-280 : project of a wide-bodied COBRA
D-292 : light composite materials version of 222 (ACAP program)
D-300 : CARA (Combat Air Rescue) civilian tilt-rotor transport with conventional tail, forerunner of Model 301/XV-15A (1967)
D-301 : military VTOL tilt rotor operational transport with conventional tail, forerunner of Model 301/XV-15A (1971)
D-302 : NASA conceptual design study tilt rotor (1971)
D-305 : COD/VOD tilt rotor proposal (1972)
D-306 : business helicopter, 6 to 10 passengers; mock-up built
D-310 : HX study for Navy tilt rotor aircraft (1974)
D-311 : HX study for Marine tilt rotor (1974)
D-312 : large civilian tilt rotor VTOL commercial (passenger) transport with H-tail and square fuselage section (-100, -45, -21) (1974)
D-313 : tilt rotor STOL commercial transport (-100, -45) (1974)
D-314A : "Tiltrotor Army Spectrum study; attack VTOL designed for ground support and FAC duties; 
AH-1 type ****pit on XV-15 general arrangement (1975)"
D-314B : Tiltrotor Army Spectrum study (1975)
D-314C : Tiltrotor Army Spectrum study. A light military troop transport VTOL (1975)
D-314D : Tiltrotor Army Spectrum study. observation VTOL designed for duties similar to OV-1 Mohawk; OV-1 type ****pit on XV-15 general arrangement (1975)
D-314E : Tiltrotor Army Spectrum study. An uprated military cargo transport version of the D-314C and which is technically a medium lift transport (1975)
D-314F : Tiltrotor Army Spectrum study. Heavily armed attack VTOL with armored ****pit designed for ground attack duties (2 different designs) (1975)
D-314G : Tiltrotor Army Spectrum study. military VTOL which carries an onboard side looking airborne radar and other sensor units for OV-1-type operations (1975)
D-315A/B : Tilt rotor HXM aircraft conceptual design study (1975)
D-316 : Air Force combat rescue mission tilt rotor aircraft (1976)
D-317 : ASH tilt rotor aircraft (1976)
D-318 : LAMPS tilt rotor aircraft (1976)
D-319 : Tilt rotor conceptual designs (resulting from Navy R.F.Q./I.) [D-319A, A-1, A(P), B, B(Q), C, D] (1978)
D-320 : Tilt rotor conceptual designs for the U.S.A.F. rescue mission analysis (1978)
D-321 : tilt-rotor conceptual VTOL design for US Navy V/STOL-A (pre-R.F.Q. activity) (1978-80)
D-322 : Heavy lift quad rotor (resulting NASA inquiry) (1979)
D-326 : 'CLIPPER' commercial tiltrotor (passenger transport) (1980)
D-327 : VTOL aircraft with 10.5 m rotors (diameter) and a capacity for 24 paratroopers (1980-1981)
D-329 : 'BAT' research VTOL, proposal for Army's 1984 LHX light helicopter program ; could not meet the weight requirements. Rotor diameter: 4.87 meters (1984)
D-340 : 'POINTER' tilt-rotor UAV
D-600 : several tilt-rotor projects; final one was six- to nine-passenger commercial tilt-rotor aircraft (Model 609)
D-604 : tilt rotor aircraft project (?)
D-1007 : huge nuclear-powered double-deck twin-rotor helicopter project
D-2001 : two-seater tilt-rotor
D-2004 : D-190 development with tip turbine drive ducts


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Commander31 wrote:
D-188A : Early tilt-rotor fighter project developed from D-139 project but with conventional-type thrust


That was a tilt-jet, not a tilt-rotor. Again, please read further into the source to make sure your info is accurate!



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My bad. Don't be too harsh on Commander31, I'm the one who made this list and it never occured to me I'd made that mistake!

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Stargazer2006 wrote:

My bad. Don't be too harsh on Commander31, I'm the one who made this list and it never occured to me I'd made that mistake!



Its all right, it was my mistake for not reading the following posts anyway.

And Stingray, why is the word c.o.c.k.p.i.t censored? Can you turn the filter off?



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Commander31 wrote:

why is the word c.o.c.k.p.i.t censored? Can you turn the filter off?



Yes... if I pay money. Just stick with the usual "co.ckpit" spelling to fool the censor.



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It su.cks!

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Stéphane



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Stargazer2006 wrote:

It su.cks!


 

Indeed!



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There was also a variant of the Super Cobra used as a target simulator for the US Air Force as a Russian aircraft, but I can't find it in Stingray's list at the main site. X_x



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Leela25 wrote:

There was also a variant of the Super Cobra used as a target simulator for the US Air Force as a Russian aircraft, but I can't find it in Stingray's list at the main site. X_x


 

Well its not listed in the Bell section. Keep scrolling down the main page and look for "Bristol Aerospace Hokum-X".

http://sites.google.com/site/stingrayslistofrotorcraft/bristol-aerospace-hokum-x

 

The first Bristol Aerospace Hokum-X, a conversion of former Arizona Army National Guard/1-284th AVN AH-1S 70-16089, during test flying before formal hand-over to the US Army of February 15. This Hokum-X, the first in visual/infra-red target configuration, had made a 20 minute first flight on September 19 last year from Winnipeg International Airport. Particularly apparent is the extension to the boom and rear fuselage area, including splitting of the single exhaust to give two separate exhaust plumes, plus a 1.2m nose extension to more closely represent the external shape of the Kamov Ka-50 Hokum. Three examples are initially being produced to act as visual, infra-red and radar targets for Stinger Block II air-to-air missiles although up to 20 examples may eventually be procured.
 
Air International, 1998


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Hi,

many Bell models still unclear;

Model-308 no details.
Model-417 civil version of ARH-70
Model-429 a stretched version of Model-427.
Model-442 medium transport helicopter.
Model-445 ARH-70A.
Model-449 Super Cobra.
Model-460 no details.
Model-540 UH-1C utility transport helicopter.
Model-620 a 22-seat of Model-609.
Model-800 Huey II helicopter.




-- Edited by hesham on Thursday 7th of October 2010 03:49:45 PM

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hesham wrote:
many Bell models still unclear;
Model-308 no details.
Model-417 civil version of ARH-70
Model-429 a stretched version of Model-427.
Model-442 medium transport helicopter.
Model-445 ARH-70A.
Model-449 Super Cobra.
Model-460 no details.
Model-540 UH-1C utility transport helicopter.
Model-620 a 22-seat of Model-609.
Model-800 Huey II helicopter.

 

  • Never heard of Model 308 or Model 417.
  • Don't have any details on Model 442 and Model 460 either.
  • Model 429 (or MAPL 429) is the GLOBAL RANGER (perhaps a search of this name could help?)
  • Model 445 was the U.S. Army's ARH-70A ARAPAHO of 2006 (ARH program), which was later cancelled (pictures 1 to 3). This is not to be mistaken with the Model 407 ARH demonstrator (pictures 4 to 6).
  • Model 449 SUPER COBRA (AH-1Z VIPER) features new, quieter four-blade composite rotor with automatic folding mechanism to make the helicopter easy to store on ship, a 10,000-hour lifetime, and the ability to survive hits by 23 millimeter projectiles, as well as a new gearbox, transmission, and auxiliary power unit (APU) (picture 7).
  • Model 450 SUPER HUEY (AH-1Y VENOM) is a remanufactured UH-1N featuring new, quieter four-blade composite rotor with automatic folding mechanism to make the helicopter easy to store on ship, a 10,000-hour lifetime, and ability to survive hits by 23 millimeter projectiles, as well as new gearbox, transmission, and auxiliary power unit (picture 8).
  • Model 540 is not a helicopter; it is a two-bladed door-hing type rotor (although I also found it as a UH-1C in one source, probably a mistake).
  • Model AB-619 CTR was a tilt-rotor, 19-seat project.
  • Model AB-620 CQTR was a tilt-rotor, 22-seat project.
  • Model 800 HUEY II was a 1993 proposal. No more details about it.


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Stéphane



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Hi all,

for Bell Model 417,it is well known project;

and for Bell Model-429,please see;


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hesham


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MAPL 351 and 382 are missing.

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Cool pics! Apparently a third variant has been considered:

MAPL 351 new five-seat light single to succeed the 206B-3
MAPL 381 new eight-seat light single to follow the 206L-4
MAPL 382 new eight-seat light twin

(MAPL stands for "Modular Affordable Product Line")

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Stéphane



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All about the MAPL 429 Global Ranger:

http://www.aerospace-technology.com/projects/bell-429/
http://en.wikipedia.org/wiki/Bell_429

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Confirmation as to the Model 540 designation:

Bell 540 refers to the rotor system, not a model of helicopter. The -10 US Army Pilot Operator manual, whatever it was called, (...) used "540 rotor system" to denote the big barn doors hung as rotor blades on the UH-1C and AH-1G.

The 540 rotor system was also installed on the UH-1M and some of the UH-1E's, as well as the AH-1Q, R, and most S's. It was a 44 ft. diameter rotor with a 27 inch chord on the "door hinge" rotor head, and this system was more optimal for higher speed flight.


Source: http://www.pprune.org/rotorheads/363124-bell-540-a.html

-- Edited by Stargazer2006 on Friday 8th of October 2010 12:28:33 AM

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Details on the Bell Model 442 project:

Type
Twin-turboshaft mediumweight helicopter.

Programme
In design definition stage from spring 1993; same weight class as Bell 412; four-blade main rotor; powered by two HTEC CTS800 or MTU/Turbomeca/Rolls-Royce MTR 390 turboshafts; hydraulically retractable tricycle landing gear. Was intended as Bell 412 successor, but now succeeded by upgrade Model 412+ programme.


Source: http://www.janes.com/articles/Janes-Helicopter-Markets-and-Systems

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There is no "Bell 460", apparently, although this and the "Bell 570" appear on the web as "street fixtures", that is public lamplights, and have nothing to do with Bell Helicopters!!!

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hesham wrote:

many Bell models still unclear;

Model-308 no details.
Model-417 civil version of ARH-70
Model-429 a stretched version of Model-427.
Model-442 medium transport helicopter.
Model-445 ARH-70A.
Model-449 Super Cobra.
Model-460 no details.
Model-540 UH-1C utility transport helicopter.
Model-620 a 22-seat of Model-609.
Model-800 Huey II helicopter.

hesham wrote:

for Bell Model 417,it is well known project;

and for Bell Model-429,please see;


Hesham, why ask about these if you alread know them "well"??? hmmno



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Stéphane



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My dear Stargazer,

I know all of those projects except 308 and 460,I don't
ask about them I just add to Bell designation,for Bell
460,I will search about it again,it is a real project.


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hesham


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The only mention of a "Bell 460" I found is in a Youtube comment by user "strassj" here:

Full comment is:

"Yes, I hope 429 went well with sell. I wish there would make new one like upgrade Bell 460 or something like that.

But it has not happen yet."



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Date: Oct 8, 2010
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Stargazer2006 wrote:

Details on the Bell Model 442 project:

Type
Twin-turboshaft mediumweight helicopter.

Programme
In design definition stage from spring 1993; same weight class as Bell 412; four-blade main rotor; powered by two HTEC CTS800 or MTU/Turbomeca/Rolls-Royce MTR 390 turboshafts; hydraulically retractable tricycle landing gear. Was intended as Bell 412 successor, but now succeeded by upgrade Model 412+ programme.


Source: http://www.janes.com/articles/Janes-Helicopter-Markets-and-Systems

 

Image found by Hesham at SPF...



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Date: Oct 8, 2010
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Hesham also mentioned a D-209 for the Cobra attack helicopter, instead of "Model-209".



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Leela25 wrote:

Hesham also mentioned a D-209 for the Cobra attack helicopter, instead of "Model-209".


 

"Model D209", as his source refers it to, is likely just a simple designation mistake.



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