America Military Turbojet Designations

General Electric XJ53

The following table provides a brief reference list of U.S. turbojet engines in order by their military designation. The following information is provided:

• Manufacturer: The designer and builder of the engine; some engines were developed and built by multiple companies.
• Model: The manufacturer's internal model designation of the engine.
• Designation: The military designation of the engine, which consists of a Type designation (J = Turbojet) and sequence number. For unknown reasons, the numerical sequence was started at 30, with even numbers being assigned to US Navy projects and odd numbers being assigned to US Army and Air Force projects. These were followed by a manufacturer's code and subtype; for example J79-GE-19 indicates 79th turbojet procured, designed and/or manufactured by General Electric, 19th subvariant of this design. The subtype numbers were again assigned to military branch, with even numbers being used for US Navy projects and odd numbers being used for US Army and Air Force projects. Sometimes further changes were signified by an additional letter (J79-GE-19A), with 'W' being used for engines with water injection and 'WA' being used for engines with water-alcohol injection; the letters 'I' and 'O' were not used. Around 1968, the designation system was revised slightly. The numerical sequence and model suffixes are assigned as follows:
  • 100 - 399: US Air Force.
  • 400 - 699: US Navy.
  • 700 - 999: US Army.
• Aircraft: US military aircraft or projects which utilized the engine (other aircraft not listed).

J = Turbojet       Manufacturer Model Designation Aircraft ? ? ? ? Westinghouse, Pratt & Whitney 19B J30 FH, F9F, P-79, X-4 General Electric I-16 J31 FR, F2R, P-59 Westinghouse 19XB J32 ? General Electric, Allison I-40 J33 F-80, F-81, F-83, F-92, F-94, T-1, T-33, A-2, P4M, F9F, F-5 Westinghouse 24C J34 F-85, F-87, F-88, F-90, T-2A, P-2, F-2, F-10, X-3, X-18, FR, F2R, F6U, F7U, D-558-2 General Electric, Allison TG-180 J35 F-84, F-86, F-89, B-43, B-45, B-46, B-48, B-49, X-5, F-1, F4D, F7U, D-558-1 Allis Chalmers licensed D.H. Goblin J36 XP-80, XF15C-1, XTB3F-1 Lockheed L-1000 J37 L-133 West Engineering ? J38 ? General Electric I-20 J39 ? Westinghouse 40E J40 F-3, X-10, F4D, F10F, XA3D Packard PT-104/PT-4000 J41 ? Pratt & Whitney licensed R-R Nene J42 F9F Westinghouse ? J43 ? Fairchild ? J44 C-123 Westinghouse ? J45 ? Westinghouse 24C J46 F7U, F-7A General Electric TG-190 J47 F-91, B-36, B-45, B-47, B-50, B-51, KC-97, F-1 Pratt & Whitney JT7 (licensed R-R Tay) J48 F-93, F-94, F9F Packard PT-205 J49 ? Westinghouse ? J50 ? Wright TJA-1 J51 ? Pratt & Whitney JT8 J52 A-4, A-6 General Electric ? J53 X-6 Westinghouse licensed R-R Avon J54 none Frederic Flader 124 J55 ? Allison ? J56 ? Pratt & Whitney, Ford JT3 J57 F-100, F-101, F-102, F-8, B-52, B-57, B-60, C-135, A-3, U-2, X-16, F4D, F5D Pratt & Whitney JT11D J58 SR-71, F-12 Wright TJ-7 J59 ? Pratt & Whitney JT12 J60 B-57, C-140, T-2, T-39, H-59 Wright TJ-6 J61 ? -- -- J62 not assigned? Fairchild ? J63 ? -- -- J64 not assigned? Wright, Buick licensed A-S Sapphire J65 F-1, F-11, F-104, A-4, B-57 -- -- J66 not assigned? Wright licensed Bristol Olympus J67 F-103, B-59 -- -- J68 not assigned? Continental 352 (licensed Turboméca Marbore) J69 T-37, BQM-34 -- -- J70 not assigned? Allison ? J71 B-47, B-66, F-3, P6M -- -- J72 not assigned? General Electric ? J73 F-86, F3H -- -- J74 not assigned? Pratt & Whitney JT4 J75 F-105, F-106, F-107, U-2, TR-1 -- -- J76 not assigned? General Electric ? J77 none -- -- J78 not assigned? General Electric CJ805 J79 F-104, F-4, A-5, B-58, X-21, F-11, F12F -- -- J80 not assigned? Westinghouse licensed R-R Soar J81 none -- -- J82 not assigned? Fairchild ? J83 ? -- -- J84 not assigned? General Electric CJ610 J85 F-109, F-5, A-37, BQM-34, T-2, C-119, C-123, T-38, X-14 -- -- J86 not assigned? General Electric X-211 J87 WS-125A NPB -- -- J88 not assigned? Allison ? J89 B-70 -- -- J90 not assigned? Pratt & Whitney JTN9 J91 WS-125A NPB -- -- J92 not assigned? General Electric 7E J93 F-108, B-70 -- -- J94 not assigned? Teledyne CAE 365 LJ95 ? -- -- J96 not assigned? General Electric GE1 J97 Compass Cope -- -- J98 not assigned? Rolls-Royce ? J99 ? Teledyne Ryan ? J100 ? General Electric GE15 J101 F-17 Allison ? J102 ? Williams WR24 J400 X-48 Garrett AiResearch ? J401 ? Teledyne CAE 370 J402 MQM-107, AGM-84, AGM-109 Microturbo TRI 60-3 J403 ? Teledyne Ryan 312 J700 ? Manufacturer Model Designation Aircraft

General Electric J87 Nuclear-Powered Bomber Project

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