Boeing Model Designations: the 900 series

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Hi Stargazer2006!

Model 928---Patrol Hydrofoil Missile-Ship/USS Pegasus PHM-1
 
Hmmm....

Boeing 908 covers LOTS of preliminary fighter designs E.g.


908-833 Advanced Tactical Fighter (late 70s?)
908-303 vectored thrust VG Strike fighter (1968)
908-618, 908-618-2, 908-909 LWF projects (1970-1974 - 908-909 was used out of sequence as it looked cool)
 
Stargazer, your list is quite wrong for the later model numbers. Model 908 series spans at least 10 years of completely unrelated fighter preliminary designs for many different programs and in no way represents a single "model". The same is true for 988, which designates various preliminary designs from the 1990s from different programs.
 
Thanks, overscan. I guess it was all nice and easy until the 1960s. Then the allocation of numbers became a little complicated...

As I purposely chose not to breakdown each model number into sub-types, but to stick to the basic numbers, I think it best to just indicate: "this designation covers a whole of different unrelated designs." What do you say?
 
Stargazer2006 said:
988 X-32A/B/C JSF contender
Click to expand...

988 wasn't just JSF it also included a range of other military strike, fighter types in the 1990s. Including ASTOVL and various NASA sponsored work.

Some more for your list from various Boeing papers:

Model 985-1 air based micro fighter delta configuration
Model 985-10 air based micro fighter vitac configuration
Model 985-20 air based micro fighter arrow configuration
Model 985-30 air based micro fighter canard configuration
Model 985-40 air based micro fighter VSW configuration
Model 985-121 air based micro fighter advanced technology (1980s), arrow configuration

Also Graham Warwick in Flight International (23 July 1983) says Boeing call their part of the JVX (V-22) the Model 901-X.
 
Stargazer2006 said:
Thanks, overscan. I guess it was all nice and easy until the 1960s. Then the allocation of numbers became a little complicated...

As I purposely chose not to breakdown each model number into sub-types, but to stick to the basic numbers, I think it best to just indicate: "this designation covers a whole of different unrelated designs." What do you say?
Click to expand...

I'd do something like this:

908 - This covers a wide variety of fighter designs including Boeing's 908-909 contender for the LWF program.
988 - Various fighter designs from the 1990s including the X-32.
985 - A family of "micro fighter" designs.
 
Hi,

Model-944 UAV
Model-969 SST
Model-935 SST
Model-936 SST
 
Thanks for the links. They kind of revived the concept of parasite fighters a la McDonnell Goblin, in a way... It is funny because only yesterday I was forming a mental image of an imaginary transport that would carry parasite fighters, not knowing I'd be hearing about these tonight! My concept was for a large flying wing aircraft with Hopeless Diamond-like fighters fitted within the wings... Not very realistic probably...

[Below: The list of 900 series designations which originally appeared in the main Boeing designations thread—Mod.]

[quote author=Stargazer2006]
901 YQM-94B COMPASS COPE B target (1973)
907 V-shaped eight-engined transport - perhaps reused for V-22 OSPREY
908 wide variety of fighter designs, some LWF contenders, competing with GD 401-16B and Northrop P-600 (908-303: vectorable engines); also VATOL D-180
909 reallocated to STRATOLINER II
922 two stage VTO Reusable Launch Vehicle
928 PHM-series hydrofoil
929 JETFOIL passenger boat/hydrofoil series (929-100,-115) (1974,1978) (also warship version)
934 space station designed for Titan III launch, serviced by Dyna Soar-derived logistics vehicles (-103)
935 SST project
936 SST project
939 LUNAR ORBITER I lunar spaceship
944 mentioned as a UAV, no details
946 BURNER II booster for rocket upper stage propulsion
953 YC-14A AMST competitor of MDD YC-15 (1976) (-815 was a development resembling YC-15)
969 SST projects, some delta-winged, some swing-wing
979 FLYBACK BOOSTER winged S-1c stages in the Saturn, Space Shuttle and SPS programs (979-061A)
984 series of VTOL designs (984-120,-122,124,-126/128,-131/134,-136/A/B/C,-139/141,-143/145)
985 large series of Microfighter and lightweight fighter designs
986? possibly used for a hydrofoil
988 series of fighter designs including the X-32/JSF prototypes
[/quote]
 
Here are some additional configurations in the 979 booster series. These are booster configurations for the Grumman version of the Space Shuttle orbiter and are contemporaries of the 979-061A "flyback F-1" stage.

979-147

2 X 156-inch SRMs, parallel-burn, 2.3M lbf
330-inch external tank
4 SSME orbiter

979-148

"propane variant", assume of -150 but no other information given

979-150, -150A

396-inch ballistic recoverable booster, series-burn
7 X 1.4M lbf RP-1/LOX
different rear fin configurations for -150 and -150A
4 SSME orbiter

979-151

2 X 230-inch pressure fed recoverable boosters, parallel-burn
4 X 750K lbf RP-1/LOX

979-152

"2-stage RP-1/LOX", no other information given

979-158A

3 X 156-inch series burn SRM, 2.3M lbf

Source:
http://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/19720010273_1972010273.pdf
 
Hi All!

correction:
Model 909---not LWF fighter,
Model 909---Twin turbopropeller driven executive light transport (Book: Roskam's Airplane War Stories, by Jan Roskam, page 89 and Fig.97)
 
Some previously unknown designations, which come from a document photocopied by fellow forum member Clioman on a visit to Boeing's archives in 1991.
  • Model 905 --- SATURN
  • Model 916 --- X-20 DYNA-SOAR
  • Model 937 --- WS-139A proposal (B-1 competition)
  • Model 975 --- WS-139A proposal (B-1 competition)

From the Bernard Lindenbaum Vertical Flight Research Collection:
  • Model 900..........Tri-Service VTOL prototype transport project (1961)
hesham said:
Model-944 UAV
Model-969 SST
Model-935 SST
Model-936 SST
Click to expand...
  • The Model 944 UAV is unknown to me. Is this a variant of the Eagle Eye?
  • In my lists, Bell-Boeing's Osprey is the Bell Model 901 and the Boeing Model 907. The Model 901 was the Compass Code B program (YQM-94B). Don't know what to make of "901-X", perhaps an intermediary designation?
 
In the linked papers here (SP) the Boeing supercruise fighter shown at this link as the white model with the red wings and canards in Flaterics post is consistently referred to as the ATS-350 and at the second link as the Model 350. Is it a repurposed model number, or is it more likely a configuration under a newer model number?

ATS-350 Reference Link

Model 350 Ref Link
 
Sundog said:
In the linked papers here (SP) the Boeing supercruise fighter shown at this link as the white model with the red wings and canards in Flaterics post is consistently referred to as the ATS-350 and at the second link as the Model 350. Is it a repurposed model number, or is it more likely a configuration under a newer model number?

ATS-350 Reference Link

Model 350 Ref Link
Click to expand...

Please note that the model is given with a hyphen before the number, i.e. "Model -350", indicating the subversion of a Model (as yet undetermined).
 
Okay, so after doing the 700 and 800 series, here is the start of the systematic recap of the 900 series...


MODEL 900

Tri-Service VTOL Prototype Transport project (1961).


MODEL 901 « GULL »

USAF YQM-94B Gull-B (COMPASS COPE B program) target drone (1973).
 
MODEL 905

Related to the Saturn launcher, no details.


MODEL 907

Vee-shaped eight-engine flying wing passenger transport project, apparently the same as the Model 759-211 project.

NOTE: re-use of the designation for the Bell-Boeing V-22 Osprey has been mentioned but needs confirmation, especially since Bell's designation (Model 901) is pretty close.
 
MODEL 908

Long-running series of vastly different fighter designs.

908-303: Strike fighter project with two vectorable main engines and two flip-out vectorable "agility booster" engines (1968).
908-535: Tailsitter/VATOL Sea Control Ship (SCS) fighter design for U.S. Navy, with twin YJ101, 17,000lbs, Mach 2.6-2.8 (1972).
908-618/-2: Early lightweight fighter (LWF) study with mid-wing and LERX (1972).
908-625: Microfighter; possibly the variant that was eventually chosen as the definitive proposal.
908-833: Advanced Tactical Fighter (ATF) project with on-board inert gas generation system (OBIGGS) (similar to Model 985-420).
908-909: Lightweight fighter (LWF) project competing with GD 401-16B and Northrop P-600, low wing and no LERX (1971).


NOTE: the designation 908-909 was reportedly out-of-sequence and chosen because it sounded good... Whether this is true or not, it was definitely a sub-version of Model 908, and not two alternative models (908 and 909) as was once thought.
 
MODEL 909

Twin turbo-propeller driven executive light transport project.


MODEL 909 « STRATOLINER II »

Designation reused for the former McDonnell Douglas DC-9-80/MD-80 series.
 
MODEL 922

Two-stage VTO Reusable Launch Vehicle, a turbojet-equipped flying wing transport aircraft meant to be bolted to the side of an S-IC stage and serve as a flyback booster for the Saturn V launcher).
  • 922-12
 
MODEL 928

Series of hydrofoil designs.

928: Patrol Hydrofoil Missile ships (six built as PHM-1 to -6: USS Pegasus, Hercules, Taurus, Aquila, Aries, Gemini).
928-77A: Patrol Hydrofoil Cutter.
928-80: Hydrofoil Ship.
928-83: Multimission Hydrofoil Combatant.
928-86: Hydrofoil Combatant.
 
MODEL 929

Series of jetfoil designs.
  • 929-100: Passenger hydrofoil series for service in the Hawaiian Islands (3 built, including "Flying Princess II" and "Aries") (1974).
  • 929-115: Version with improved performance, payload and reliability (included "Cunamara") (1978).
  • 929-117: Production version; also 11 more built by Kawasaki in Japan under exclusive license.
 
MODEL 934

Space station designed for Titan III launch, serviced by Dyna Soar-derived logistics vehicles.
  • 934-103
 
MODEL 937

Bomber proposal to USAF Weapon System 139A (B-1A competition).
 
MODEL 939 « LUNAR ORBITER I »

Lunar spaceship, an 850-pound, open truss structure, with a 145-pound photographic subsystem etc.
 
MODEL 944

This designation has been quoted for a UAV but could very well be a mistake. Source information is needed!
 
MODEL 946 « BURNER II »

Series of booster designs.

946-025: Booster for rocket upper stage propulsion; TE 364-2 motor; 200 lb. payload support capability; 43-min. coast capability.
946-027B: New payload support structure to handle 1400 pound payloads; TE 364-3 motor with up to 1440 pounds of propellant.
946-128B: 4000 lb. payload support capability, TE 364-4 motor with cylindrical insert permitting propellant loadings of up to 2100 lb.
 
MODEL 953

Series of STOL transport designs.
  • 953-?: USAF YC-14A New-Generation Airlifter, competitor of MDD YC-15 for AMST (1976)
  • 953-258: Alternate AMST proposal with regular engines.
  • 953-801: Medium STOL Transport (MST) design.
  • 953-815: STOL transport with a similar configuration to the McDonnell YC-15.
 
MODEL 956

Series of interceptor designs for USAF's ADO-12 competition (Advanced Development Objective No.12).
  • 956 PDI-10: Subsonic VG interceptor design (June 1964).
  • 956 PDII-10: Supersonic variant (June 1964).
 
MODEL 969

Series of supersonic transport (SST) designs.
  • 969-302B: Delta-wing SST project.
  • 969-321: SST project, a modified version of NASA's SCAT 15F.
  • 969-336C: Based on NASA SCAT-15F configuration.
  • 969-404B: Swing-wing SST project.
 
MODEL 975

Alternate bomber proposal to USAF Weapon System 139A (B-1A competition).
 
MODEL 979

Series of booster designs.
  • 979-061A: Flyback F-1 Booster, winged S-1c stages in the Saturn, Space Shuttle and SPS programs.
  • 979-145: Ballistic Recoverable Booster (1972).
  • 979-147: booster configuration for Grumman's Space Shuttle orbiter; 2 x 156-inch SRMs, parallel-burn, 2.3M lbf.
  • 979-148: booster configuration for Grumman's Space Shuttle orbiter; "propane variant".
  • 979-150/A: booster configuration for Grumman's Space Shuttle orbiter; 396-inch ballistic recoverable booster, series-burn.
  • 979-151: booster configuration for Grumman's Space Shuttle orbiter; 2 x 230-inch pressure fed recoverable boosters, parallel-burn.
  • 979-152: booster configuration for Grumman's Space Shuttle orbiter; "2-stage RP-1/LOX".
  • 979-158A: booster configuration for Grumman's Space Shuttle orbiter; 3 x 156-inch series burn SRM, 2.3M lbf.
 
MODEL 984

Series of VTOL and V/STOL designs, including ducted fan concepts.984-120
  • 984-122
  • 984-124
  • 984-126
  • 984-127
  • 984-128
  • 984-131
  • 984-132
  • 984-133
  • 984-134
  • 984-136
  • 984-136A
  • 984-136B
  • 984-136C
  • 984-139
  • 984-140
  • 984-141
  • 984-143
  • 984-144
  • 984-145
 
MODEL 985

Series of vastly different fighter designs.
  • 985-1: Air-based micro fighter, delta configuration.
  • 985-10: Air-based micro fighter, VITAC configuration.
  • 985-20: Air-based micro fighter, arrow configuration.
  • 985-30: Air-based micro fighter, canard configuration.
  • 985-40: Air-based micro fighter, VSW configuration.
  • 985-121: Advanced technology air-based micro fighter, arrow configuration, AIM-7 under wings or hypothetical 1750-lb smart bombs.
  • 985-213: Lightweight Fighter design.
  • 985-226-1: VITAC configuration.
  • 985-227-1: TLT configuration.
  • 985-228-1: Horizontal Tail configuration.
  • 985-303: Canard/Trim Engine configuration.
  • 985-420: Tactical Fighter design similar to Model 908-833.
  • 985-430: Supersonic Interceptor design.
 

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