Back to Propulsion Systems

CFM International CFM56-7B26/3B1

CFM International CFM56-7B26/3B1 is a dual-rotor, axial-flow, high-bypass turbofan in the CFM56-7B TI model group. EASA E.004 Issue 07 describes a single-stage fan, three-stage low-pressure compressor, nine-stage high-pressure compressor, annular combustion chamber, single-stage high-pressure turbine, four-stage low-pressure turbine, and dual-channel FADEC. It rates CFM56-7B26/3B1 at 116.99 kN takeoff thrust and 115.21 kN maximum continuous thrust. The exact /3B1 suffix and existing Boeing 737-family installation are preserved without inferring a narrower aircraft submodel or additional lineage.

Identity

Aliases
CFM56-7B26/3B1CFM56-7B26-3B1CFM International CFM56-7B26/3B1
Domains
aviation
Identity Level
variant
Kind
turbofan
Name
CFM International CFM56-7B26/3B1
Status
active

Details

Air Breathing Specs
Max Thrust Kn
116.99
Sea Level Static Thrust Kn
116.99
Spool Count
2
Description
CFM International CFM56-7B26/3B1 is a dual-rotor, axial-flow, high-bypass turbofan in the CFM56-7B TI model group. EASA E.004 Issue 07 describes a single-stage fan, three-stage low-pressure compressor, nine-stage high-pressure compressor, annular combustion chamber, single-stage high-pressure turbine, four-stage low-pressure turbine, and dual-channel FADEC. It rates CFM56-7B26/3B1 at 116.99 kN takeoff thrust and 115.21 kN maximum continuous thrust. The exact /3B1 suffix and existing Boeing 737-family installation are preserved without inferring a narrower aircraft submodel or additional lineage.
Developers
Family
Manufacturers

Links

Assets & Meta

Creation Time
August 7, 2026 at 08:46:34 UTC
Updated Time
August 23, 2026 at 14:57:56 UTC

Other

Sources
  • Accessed Date
    2026-08-21
    Note
    EASA E.004 Issue 07 lists CFM56-7B26/3B1 in the TI model group with 11,699 daN take-off thrust and 11,521 daN maximum continuous thrust for the /3B1 rating group; take-off thrust is normalized to 116.99 kN in airBreathingSpecs.
    Publisher
    European Union Aviation Safety Agency
    Title
    EASA E.004 — CFM56-7B series engine type-certificate data sheet, Issue 07
  • Accessed Date
    2026-08-07
    Note
    The regulatory type-acceptance report preserves CFM56-7B26/3B1 as an exact TI model designation.
    Publisher
    Civil Aviation Authority of New Zealand
    Title
    Type Acceptance Report TAR 19/21B/9 — CFM56-7B Series