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CFM International CFM56

The CFM56 is one of the most widely used turbofan families, powering Boeing 737 Classic/NG, Airbus A320ceo-family aircraft, A340-200/-300, and other aircraft.

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Overview

The CFM56 is one of the most widely used turbofan families, powering Boeing 737 Classic/NG, Airbus A320ceo-family aircraft, A340-200/-300, and other aircraft.

Advantages

  • Enormous installed base and global support ecosystem.
  • Strong reliability reputation across narrow-body fleets.

Limitations

  • Replaced in new-production narrow-body roles by LEAP and PW1000G-generation engines.
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Branches & models

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

CFM56-5A5 models
  • CFM56-5A1A320-211
  • CFM56-5A1/FA320-211
  • CFM56-5A3A319-111, A320-212
  • CFM56-5A4A319-112, A320-214
  • CFM56-5A5A319-113
CFM56-5B11 models
  • CFM56-5B4A319-114, A320-214, A321-211
  • CFM56-5B4/2PA320-214, A321-211
  • CFM56-5B4/PA319-114, A320-214, A321-211
  • CFM56-5B5A319-115, A320-215
  • CFM56-5B5/PA319-115, A320-215
  • CFM56-5B6A319-116, A320-216
  • CFM56-5B6/PA319-116, A320-216
  • CFM56-5B7A319-115, A319-116, A320-216
  • CFM56-5B7/PA319-115, A319-116, A320-216
  • CFM56-5B8/PA318-111
  • CFM56-5B9/PA318-112
CFM56-5C4 models
  • CFM56-5C2A340-211
  • CFM56-5C3A340-212, A340-311
  • CFM56-5C4A340-213, A340-313
  • CFM56-5C4/PA340-213X, A340-313X
CFM56-33 models
  • CFM56-3B1737-300
  • CFM56-3B2737-300, 737-400
  • CFM56-3C1737-300, 737-400, 737-500
CFM56-7B6 models
  • CFM56-7B18737-600, 737-700
  • CFM56-7B20737-600, 737-700
  • CFM56-7B22737-700, 737-800
  • CFM56-7B24737-700, 737-800
  • CFM56-7B26737-800, 737-900
  • CFM56-7B27737-800, 737-900ER, P-8 Poseidon, C-40
CFM56-22 models
  • CFM56-2A2E-3, 707 military conversion
  • CFM56-2B1 / F108-CF-100KC-135R/T
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Technical context

Technical notes

  • CFM56-3 powers 737 Classic aircraft.
  • CFM56-7B powers 737NG aircraft.
  • CFM56-5B powers many A320ceo-family aircraft; CFM56-5C powers A340-200/-300.
  • Typical aircraft applications: boeing-737, airbus-a320-family, airbus-a340.
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Sources