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CFM International LEAP

The LEAP is CFM's newer narrow-body engine family, powering A320neo-family aircraft, the Boeing 737 MAX, and the COMAC C919.

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Overview

The LEAP is CFM's newer narrow-body engine family, powering A320neo-family aircraft, the Boeing 737 MAX, and the COMAC C919.

Advantages

  • Lower fuel burn and emissions compared with CFM56 generation.
  • Covers the major Airbus, Boeing, and COMAC narrow-body programs.

Limitations

  • Variant-specific installation differences are significant.
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Branches & models

Select a branch to inspect its documented model codes and aircraft applications.

LEAP-1A8 models
  • LEAP-1A23A319neo, A320neo
  • LEAP-1A24A319neo, A320neo
  • LEAP-1A26A320neo
  • LEAP-1A29A320neo, A321neo
  • LEAP-1A30A321neo
  • LEAP-1A32A321neo, A321LR
  • LEAP-1A33A321neo, A321LR, A321XLR
  • LEAP-1A35AA321XLR, A321neo high-weight
LEAP-1B3 models
  • LEAP-1B25737 MAX 7, 737 MAX 8
  • LEAP-1B27737 MAX 8, 737 MAX 9, 737 MAX 10
  • LEAP-1B28737 MAX 8-200, 737 MAX 9, 737 MAX 10
LEAP-1C3 models
  • LEAP-1C28C919
  • LEAP-1C30C919 high-thrust
  • LEAP-1C30B1C919 later certification
CJ-1000A1 model
  • CJ-1000AC919 development
CJ-20001 model
  • CJ-2000C929 candidate
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Technical context

Technical notes

  • LEAP-1A is an A320neo-family option.
  • LEAP-1B is the exclusive 737 MAX engine.
  • LEAP-1C is used on the COMAC C919.
  • Typical aircraft applications: airbus-a320-family, boeing-737.
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Sources