| CFM56-5B5/3 ✕ | CFM56-2B-1 ✕ | |
|---|---|---|
| Family | CFM56-5B | CFM56-2 |
| EASA ID | 8CM056 | 1CM002 |
| 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 | 6 | 6 |
| Overall Pressure Ratio | 23.1 | 23.5 |
| Maximum Takeoff Thrust (kN) | 97.9 | 97.86 |
| Hydrocarbon Take Off (g/kg fuel) | 0.03 | 0.04 |
| Hydrocarbon Climb Out (g/kg fuel) | 0.03 | 0.05 |
| Hydrocarbon Approach (g/kg fuel) | 0.08 | 0.08 |
| Hydrocarbon Idle (g/kg fuel) | 3.55 | 1.83 |
| Hydrocarbon Unitary Average (g/kN) | 5.31 | 3.87 |
| Hydrocarbon Unitary Sigma (g/kN) | 0.55 | 0.41 |
| Hydrocarbon Unitary Range (g/kN) | 4.68-5.7 | 3.4-4.15 |
| Hydrocarbon Unitary Characteristic (g/kN) | 6.2 | 6 |
| Hydrocarbon Unitary Characteristicto Regulatory (% of limit) | 31.6 | 30.4 |
| Hydrocarbon LTO (g) | 520 | 378 |
| Carbon Monoxide Take Off (g/kg fuel) | 0.15 | 0.9 |
| Carbon Monoxide Climb Out (g/kg fuel) | 0.2 | 0.9 |
| Carbon Monoxide Approach (g/kg fuel) | 4.94 | 4.2 |
| Carbon Monoxide Idle (g/kg fuel) | 41.77 | 30.7 |
| Carbon Monoxide Unitary Average (g/kN) | 64.82 | 67.2 |
| Carbon Monoxide Unitary SD (g/kN) | 2.9 | 4.1 |
| Carbon Monoxide Unitary Range (g/kN) | 61.5-66.5 | 63.5-71.7 |
| Carbon Monoxide Unitary Characteristic (g/kN) | 70.1 | 82.5 |
| Carbon Monoxide Unitary Characteristicto Regulatory (% of limit) | 59.4 | 69.9 |
| NOx Take Off (g/kg fuel) | 16.42 | 18.5 |
| NOx Climb Out (g/kg fuel) | 14.01 | 16 |
| NOx Approach (g/kg fuel) | 8.03 | 8.2 |
| NOx Idle (g/kg fuel) | 3.81 | 4 |
| NOx Unitary Average (g/kN) | 31.13 | 39.9 |
| NOx Unitary SD (g/kN) | 1.1 | 0.6 |
| NOx Unitary Range (g/kN) | 30.1-32.2 | 39.4-40.5 |
| NOx Unitary Characteristic (g/kN) | 33 | 46.3 |
| NOx Unitaryto Standard (% of limit) | 38.3 | 53.2 |
| NOx Unitaryto CAEP2 (% of limit) | 47.9 | 66.5 |
| NOx Unitaryto CAEP4 (% of limit) | 59 | 81.7 |
| NOx Unitaryto CAEP6 (% of limit) | 67 | 92.9 |
| NOx Unitaryto CAEP8 (% of limit) | 81.7 | 113 |
| NOx LTO (g) | 3047 | 3906 |
| Smoke Take Off (SN) | 9.7 | 6 |
| Smoke Climb Out (SN) | 8 | 3 |
| Smoke Approach (SN) | 2.1 | 2.6 |
| Smoke Idle (SN) | 2.1 | 2.2 |
| Smoke Max (SN) | 9.7 | 6 |
| Smoke Sigma (SN) | 2.1 | 0.8 |
| Smoke Range (SN) | 8-12.1 | 5.4-6.9 |
| Smoke Characteristic (SN) | 10.7 | 7.7 |
| Smoke Characteristicto Regulatory (% of limit) | 44.9 | 32.4 |
| Fuel Flow Take Off (kg/s) | 0.894 | 0.985 |
| Fuel Flow Climbout (kg/s) | 0.743 | 0.819 |
| Fuel Flow Approach (kg/s) | 0.264 | 0.311 |
| Fuel Flow Idle (kg/s) | 0.092 | 0.128 |
| Fuel LTO (kg) | 343 | 424 |
| Fuel Venting Compliant | Yes | No |
| Carbon Monoxide LTO (g) | 6343 | 6578 |
| Compressor Description | 1 fan, 4-stage LP, 9-stage HP | |
| Emissions Data Status | C | C |
| Emissions Data Superseded | Yes | |
| Emissions Superseded By | 01P08CM106 | |
| Engine Status | Out of production | |
| NOx Compliance Demonstration | 2.3.2 e) | |
| Turbine Description | 1-stage HP, 4-stage LP |