Number
|
System code
|
Project
|
400
|
400B
|
Lockheed AC-130H Spectre
|
400C
|
Lockheed AC-130U Spooky
|
400E
|
Allison T56
|
400G
|
Lockheed MC-130E Combat Talon
|
400H
|
Lockheed MC-130H Combat Talon II
|
SS-400L
|
Lockheed C-130 Hercules
|
SS-400M
|
Lockheed RC-130 Hercules
|
SS-400N
|
Lockheed AC-130 Spectre
|
400Z
|
Lockheed C-130 Hercules
|
401
|
SS-401L
|
Douglas C-132
|
402
|
SS-402L
|
Douglas C-133 Cargomaster
|
403
|
Unknown
|
404
|
404L
|
Air Traffic Control And Landing System
|
405
|
405B
|
Spaceborne Laser Communications System
|
405C
|
Laser countermeasures
|
405D
|
Joint Laser/ECCM Project
|
406
|
Unknown
|
407
|
407L
|
Ground Theater Air Control System
|
408, 409
|
Unknown
|
410
|
410A
|
Lockheed C-5A Galaxy
|
410B
|
Lockheed C-5B Galaxy
|
410E
|
General Electric TF39-GE-1C
|
410Z
|
Lockheed C-5A/B Galaxy
|
411
|
411E
|
Pratt & Whitney TF33-P-100A
|
411L
|
Boeing E-3 Sentry
|
411Z
|
Boeing E-3B/C Sentry
|
412
|
SS-412L
|
Air Weapons Control System (originally WS-212L)
|
413
|
413L
|
Distant Early Warning Line (originally WS-213L)
|
414
|
414L
|
Atmospheric Early Warning System
|
SS-414M
|
Electronic Countermeasures System
|
415
|
415L
|
Military Airlift Command Integrated Management System
|
416
|
SS-416L
|
Semi-Automatic Ground Environment (originally WS-216L)
|
416M
|
Back-Up Interceptor Control
|
416M
|
White Sands Missile Range Surveillance System
|
416P
|
Seek Dawn
|
416Q
|
Common Digitizer
|
417
|
417L
|
Surveillance/Control/Weather Satellite
|
418
|
418L
|
Ryukyu Air Defense System
|
418M
|
Hawaiian Air Defense System
|
419
|
Unknown
|
420
|
SS-420A
|
Northrop F-5 Freedom Fighter
|
SS-420L
|
Northrop T-38 Talon
|
420W
|
Northrop T-38A/B Talon
|
420Z
|
Northrop F-5
|
421
|
Unknown
|
422
|
SS-422L
|
Boeing KC-135 Stratotanker
|
423
|
423L
|
Automatic Digital Network
|
424
|
SS-424L
|
Cessna T-37 Tweet
|
424Z
|
Cessna T-37B Tweet
|
425
|
SS-425L
|
Cheyenne Mountain Complex
|
426
|
SS-426L
|
Northrop AQM-35
|
SS-426M
|
Supersonic drone
|
427
|
SS-427L
|
Lockheed AQM-60 Kingfisher
|
427M
|
Military Airlift Command Integrated Management System
|
428
|
428A
|
Marine Air Ground Intelligence System
|
428L
|
AN/URC-117 Ground Wave Emergency Network
|
429
|
SS-429L
|
Ryan Firebee
|
429Z
|
Ryan Firebee
|
430
|
430A
|
Photographic Processing and Interpretation Facility
|
431
|
431G
|
Electro-Optical Warfare
|
SS-431L
|
Traffic Control And Landing System
|
432
|
SS-432L
|
Crash Locator System
|
433
|
SS-433L
|
METRO Weather Observation and Forecasting System
|
434
|
WS-434?
|
Air Force Space Surveillance System
|
435
|
435A
|
Navy Navigational Satellite System
|
435L
|
Boeing EC-135N Apollo/Range Instrumentation Aircraft
|
436
|
436M
|
Strategic Automated Command and Control System
|
437
|
437A
|
Nuclear-Armed Unguided Satellite Inspection System
|
438
|
SS-438L
|
AIDS Intelligence Data Handling System
|
439
|
439L
|
Sea Coastal Cable Communications System
|
440
|
440L
|
Forward Scatter Over-the-Horizon Radar System
|
441
|
441A
|
Cobra Mist
|
441D
|
Cobra Talon
|
441L
|
Air Force Satellite Communications
|
442
|
442L
|
Lockheed X-7
|
443
|
SS-443L
|
Bell UH-1 Iroquois
|
443Z
|
Bell HH-1H Iroquois/
UH-1N Twin Huey
|
444
|
Unknown
|
445
|
SS-445L
|
Jet Transport Support System
|
SS-445M
|
Unidentified
supersonic transport
|
446
|
446A
|
De Havilland Canada C-7A Caribou
|
447
|
447L
|
North American X-15
|
448, 449
|
Unknown
|
450
|
450A
|
LORAN
|
451
|
451D
|
Spain Air Defense System
|
451L
|
Joint Tactical Information Distribution System (also 634B)
|
452
|
SS-452L
|
North American T-39 Sabreliner
|
452Z
|
North American T-39A/B Sabreliner
|
453
|
453L
|
Project Y-2 (later WS-606A)
|
454
|
Unknown
|
455
|
SS-455L
|
Hypersonic Weapons Research & Development Supporing System
|
456
|
456L
|
Quadrajector
|
457
|
Unknown
|
458
|
458L
|
Wideband Transmission System
|
459
|
RS-459L
|
Brass Bell reconnaissance system
|
460
|
460A
|
Radar for
Northrop Grumman E-8C Joint STARS
|
460B
|
Operation & Control System for Northrop Grumman E-8C Joint STARS
|
460C
|
Communication system for Northrop Grumman E-8C Joint STARS
|
SS-460L
|
Weather Reconnaissance Suite for
Boeing WC-135 Constant Phoenix
|
460Z
|
Northrop Grumman E-8C Joint STARS
|
461
|
WS-461L
|
High-Altitude Balloon Reconnaissance System
|
462
|
SS-462L
|
Beechcraft AQM-37 Jayhawk
|
463
|
SS-463L
|
463L master pallet
|
464
|
SS-464L
|
Boeing X-20 Dyna-Soar (also RS-620A)
|
465
|
SS-465L
|
ITT 465L Strategic Air Command Control System
|
466
|
SS-466L
|
466L Electromagnetic Intelligence System
|
467
|
SS-467L
|
Advanced Navigational Training Support System
|
468
|
SS-468L
|
Lockheed T-40 JetStar
|
469
|
469L
|
Conversion Of Range Telemetry Systems
|
470
|
470L
|
Communications Satellite System
|
471
|
SS-471L
|
Boeing Vertol CH-46 Sea Knight/
CH-47 Chinook
|
472
|
SS-472L
|
Support System Test Aircraft
|
473
|
SS-473L
|
USAF Command and Control System
|
474
|
SS-474L
|
Ballistic Missile Early Warning System
|
474N
|
AN/FPS-26 Radar
|
475
|
Unknown
|
476
|
476E
|
Pratt & Whitney TF33-P-7A
|
SS-476L
|
Lockheed C-141 Starlifter
|
476L
|
Lockheed C-141B Starlifter
|
477
|
477L
|
GE 477L Nuclear Detection and Reporting System
|
478
|
SS-478A
|
LTV XC-142A
|
478T
|
Tri-Service Tactical Communications System
|
479
|
Unknown
|
480
|
SS-480L
|
Unidentified USAF communications system
|
481
|
SS-481B
|
Boeing E-4
|
481L
|
Post-Attack Command and Control System
|
481Z
|
Boeing E-4B
|
482
|
482B
|
Sikorsky TH-53A Sea Stallion
|
482E
|
General Electric T64-GE-100
|
482L
|
Ground Theater Air Control System
|
483M
|
Sikorsky MH-53J Pave Low III
|
482Z
|
External fuel tank for Sikorsky HH-53
|
483
|
483L
|
Air/Ground Digital Secure Teletype Communication System
|
484
|
484L
|
Presidential Aircraft Support System
|
484L
|
System Capable Of Planned Expansion
|
484M
|
"
Build Back" project
|
484N
|
"
Wet Wash" project
|
485
|
485L
|
Tactical Air Control System Improvements
|
485Z
|
Sikorsky CH-3E Sea King/HH-3E Jolly Green Giant
|
486
|
486L
|
Mediterranean Communications System
|
487
|
487L
|
Survivable Low Frequency Communications System
|
487M
|
Special Purpose LF/VLF Communication System
|
488
|
488L
|
"
Green Pine" project
|
489
|
489L
|
Northern Area Command System
|
490
|
490L
|
Automatic Voice Network of the Defense Communications System
|
490M
|
Post Attack Intercontinental Link
|
491
|
Unknown
|
492
|
492L
|
United States Strike Command and Control
|
493
|
493L
|
Automatic Secure Voice Communications Network
|
494
|
494L
|
AN/DRC-8 Emergency Rocket Communications System
|
495
|
SS-495L
|
IFF Mark XII
|
495L
|
Command and Control Information Processing System
|
496
|
SS-496L
|
United States Space Surveillance Network
|
497
|
SS-497A
|
Miscellaneous NASA system studies
|
497L
|
Automatic Digital Switching System
|
497L
|
Ground-based sensor for the
United States national missile defense
|
498
|
SS-498A
|
ARPA work orders
|
SS-498C
|
Lockheed SC-130B Hercules
|
SS-498D
|
Strategic Communications System
|
SS-498E
|
Military Air Transport Service modernization
|
498L
|
Milstar
|
499
|
SS-499A
|
Supporting system planning
|
SS-499C
|
Advanced System and Space Vehicle studies
|
SS-499D
|
Intelligence and Reconnaissance Systems study
|