| CFM56-5B6/3 ✕ | CFM56-2A series ✕ | |
|---|---|---|
| Family | CFM56-5B | CFM56-2 |
| EASA ID | 8CM057 | 1CM001 |
| Aircraft Engine Manufacturer | CFM International | CFM International |
| Aircraft Engine Type | Turbofan | Turbofan |
| Comment | Airbus A318, A319, A320, A321 | DC-8-70, KC-135R, E-3, E-6 |
| Dry Weight (kg) | 2381 | 2186 |
| Diameter (mm) | 1735 | 1735 |
| Max Rotating Diameter (mm) | 1735 | 1735 |
| Length (mm) | 2601 | |
| Wikipedia Article (URL) | en.wikipedia.org/wiki/CFM_International_CFM56 | en.wikipedia.org/wiki/CFM_International_CFM56 |
| Fuel | Jet A | Jet A |
| Fan Blades | 36 | |
| Geared Fan | No | No |
| Low-Pressure Compressor Stages | 4 | |
| High-Pressure Compressor Stages | 9 | |
| Combustion Chamber | Tech Insertion | |
| High Pressure Compressor Stages | 1 | |
| Low-Pressure Turbine Stages | 4 | |
| Afterburner | No | No |
| Streams | 2 | 2 |
| Bypass Ratio | 5.9 | 6 |
| Overall Pressure Ratio | 24.3 | 25.2 |
| Maximum Takeoff Thrust (kN) | 104.5 | 106.76 |
| Hydrocarbon Take Off (g/kg fuel) | 0.02 | 0.04 |
| Hydrocarbon Climb Out (g/kg fuel) | 0.03 | 0.04 |
| Hydrocarbon Approach (g/kg fuel) | 0.07 | 0.08 |
| Hydrocarbon Idle (g/kg fuel) | 2.93 | 1.13 |
| Hydrocarbon Unitary Average (g/kN) | 4.24 | 2.26 |
| Hydrocarbon Unitary Sigma (g/kN) | 0.48 | 0.41 |
| Hydrocarbon Unitary Range (g/kN) | 3.7-4.61 | 1.82-2.63 |
| Hydrocarbon Unitary Characteristic (g/kN) | 4.95 | 3.5 |
| Hydrocarbon Unitary Characteristicto Regulatory (% of limit) | 25.3 | 17.8 |
| Hydrocarbon LTO (g) | 440 | 242 |
| Carbon Monoxide Take Off (g/kg fuel) | 0.17 | 0.9 |
| Carbon Monoxide Climb Out (g/kg fuel) | 0.17 | 0.9 |
| Carbon Monoxide Approach (g/kg fuel) | 4.35 | 3.4 |
| Carbon Monoxide Idle (g/kg fuel) | 38.39 | 23.5 |
| Carbon Monoxide Unitary Average (g/kN) | 57.45 | 48.5 |
| Carbon Monoxide Unitary SD (g/kN) | 2.7 | 2.5 |
| Carbon Monoxide Unitary Range (g/kN) | 54.3-59.3 | 47-51.4 |
| Carbon Monoxide Unitary Characteristic (g/kN) | 62.1 | 59.5 |
| Carbon Monoxide Unitary Characteristicto Regulatory (% of limit) | 52.6 | 50.5 |
| NOx Take Off (g/kg fuel) | 17.73 | 20.4 |
| NOx Climb Out (g/kg fuel) | 14.88 | 17.3 |
| NOx Approach (g/kg fuel) | 8.29 | 8.7 |
| NOx Idle (g/kg fuel) | 3.94 | 4.3 |
| NOx Unitary Average (g/kN) | 32.81 | 42.8 |
| NOx Unitary SD (g/kN) | 1.1 | 0.8 |
| NOx Unitary Range (g/kN) | 31.8-34 | 42.3-43.7 |
| NOx Unitary Characteristic (g/kN) | 34.8 | 49.6 |
| NOx Unitaryto Standard (% of limit) | 39.3 | 54.9 |
| NOx Unitaryto CAEP2 (% of limit) | 49.1 | 68.6 |
| NOx Unitaryto CAEP4 (% of limit) | 60.1 | 83.6 |
| NOx Unitaryto CAEP6 (% of limit) | 68.3 | 95 |
| NOx Unitaryto CAEP8 (% of limit) | 82.7 | 114.4 |
| NOx LTO (g) | 3363 | 4571 |
| Smoke Take Off (SN) | 11.3 | 7.9 |
| Smoke Climb Out (SN) | 8.4 | 4.2 |
| Smoke Approach (SN) | 2.1 | 2.5 |
| Smoke Idle (SN) | 2.1 | 2 |
| Smoke Max (SN) | 11.3 | 7.9 |
| Smoke Sigma (SN) | 2.6 | 0.6 |
| Smoke Range (SN) | 8.3-12.9 | 7.3-8.5 |
| Smoke Characteristic (SN) | 12.4 | 10.2 |
| Smoke Characteristicto Regulatory (% of limit) | 53 | 43.7 |
| Fuel Flow Take Off (kg/s) | 0.965 | 1.114 |
| Fuel Flow Climbout (kg/s) | 0.8 | 0.911 |
| Fuel Flow Approach (kg/s) | 0.279 | 0.318 |
| Fuel Flow Idle (kg/s) | 0.095 | 0.13 |
| Fuel LTO (kg) | 361 | 446 |
| Fuel Venting Compliant | Yes | No |
| Carbon Monoxide LTO (g) | 5912 | 5176 |
| Compressor Description | 1 fan, 4-stage LP, 9-stage HP | |
| Emissions Data Status | C | C |
| Emissions Data Superseded | Yes | |
| Emissions Superseded By | 01P08CM107 | |
| Engine Status | Out of production | |
| NOx Compliance Demonstration | 2.3.2 e) | |
| Turbine Description | 1-stage HP, 4-stage LP |