| CFM56-2-C5 ✕ | CFM56-2B-1 ✕ | CFM56-2A series ✕ | |
|---|---|---|---|
| Family | CFM56-2 | CFM56-2 | CFM56-2 |
| EASA ID | 1CM003 | 1CM002 | 1CM001 |
| Aircraft Engine Manufacturer | CFM International | CFM International | CFM International |
| Aircraft Engine Type | Turbofan | Turbofan | Turbofan |
| Comment | DC-8-70, KC-135R, E-3, E-6 | DC-8-70, KC-135R, E-3, E-6 | DC-8-70, KC-135R, E-3, E-6 |
| Dry Weight (kg) | 2186 | 2186 | 2186 |
| Diameter (mm) | 1735 | 1735 | 1735 |
| Max Rotating Diameter (mm) | 1735 | 1735 | 1735 |
| Wikipedia Article (URL) | en.wikipedia.org/wiki/CFM_International_CFM56 | en.wikipedia.org/wiki/CFM_International_CFM56 | en.wikipedia.org/wiki/CFM_International_CFM56 |
| Fuel | Jet A | Jet A | Jet A |
| Geared Fan | No | No | No |
| Afterburner | No | No | No |
| Streams | 2 | 2 | 2 |
| Bypass Ratio | 6 | 6 | 6 |
| Overall Pressure Ratio | 23.5 | 23.5 | 25.2 |
| Maximum Takeoff Thrust (kN) | 97.86 | 97.86 | 106.76 |
| Hydrocarbon Take Off (g/kg fuel) | 0.04 | 0.04 | 0.04 |
| Hydrocarbon Climb Out (g/kg fuel) | 0.05 | 0.05 | 0.04 |
| Hydrocarbon Approach (g/kg fuel) | 0.08 | 0.08 | 0.08 |
| Hydrocarbon Idle (g/kg fuel) | 1.83 | 1.83 | 1.13 |
| Hydrocarbon Unitary Average (g/kN) | 3.87 | 3.87 | 2.26 |
| Hydrocarbon Unitary Sigma (g/kN) | 0.41 | 0.41 | 0.41 |
| Hydrocarbon Unitary Range (g/kN) | 3.4-4.15 | 3.4-4.15 | 1.82-2.63 |
| Hydrocarbon Unitary Characteristic (g/kN) | 6 | 6 | 3.5 |
| Hydrocarbon Unitary Characteristicto Regulatory (% of limit) | 30.4 | 30.4 | 17.8 |
| Hydrocarbon LTO (g) | 378 | 378 | 242 |
| Carbon Monoxide Take Off (g/kg fuel) | 0.9 | 0.9 | 0.9 |
| Carbon Monoxide Climb Out (g/kg fuel) | 0.9 | 0.9 | 0.9 |
| Carbon Monoxide Approach (g/kg fuel) | 4.2 | 4.2 | 3.4 |
| Carbon Monoxide Idle (g/kg fuel) | 30.7 | 30.7 | 23.5 |
| Carbon Monoxide Unitary Average (g/kN) | 67.2 | 67.2 | 48.5 |
| Carbon Monoxide Unitary SD (g/kN) | 4.1 | 4.1 | 2.5 |
| Carbon Monoxide Unitary Range (g/kN) | 63.5-71.7 | 63.5-71.7 | 47-51.4 |
| Carbon Monoxide Unitary Characteristic (g/kN) | 82.5 | 82.5 | 59.5 |
| Carbon Monoxide Unitary Characteristicto Regulatory (% of limit) | 69.9 | 69.9 | 50.5 |
| NOx Take Off (g/kg fuel) | 18.5 | 18.5 | 20.4 |
| NOx Climb Out (g/kg fuel) | 16 | 16 | 17.3 |
| NOx Approach (g/kg fuel) | 8.2 | 8.2 | 8.7 |
| NOx Idle (g/kg fuel) | 4 | 4 | 4.3 |
| NOx Unitary Average (g/kN) | 39.9 | 39.9 | 42.8 |
| NOx Unitary SD (g/kN) | 0.6 | 0.6 | 0.8 |
| NOx Unitary Range (g/kN) | 39.4-40.5 | 39.4-40.5 | 42.3-43.7 |
| NOx Unitary Characteristic (g/kN) | 46.3 | 46.3 | 49.6 |
| NOx Unitaryto Standard (% of limit) | 53.2 | 53.2 | 54.9 |
| NOx Unitaryto CAEP2 (% of limit) | 66.5 | 66.5 | 68.6 |
| NOx Unitaryto CAEP4 (% of limit) | 81.7 | 81.7 | 83.6 |
| NOx Unitaryto CAEP6 (% of limit) | 92.9 | 92.9 | 95 |
| NOx Unitaryto CAEP8 (% of limit) | 113 | 113 | 114.4 |
| NOx LTO (g) | 3906 | 3906 | 4571 |
| Smoke Take Off (SN) | 6 | 6 | 7.9 |
| Smoke Climb Out (SN) | 3 | 3 | 4.2 |
| Smoke Approach (SN) | 2.6 | 2.6 | 2.5 |
| Smoke Idle (SN) | 2.2 | 2.2 | 2 |
| Smoke Max (SN) | 6 | 6 | 7.9 |
| Smoke Sigma (SN) | 0.8 | 0.8 | 0.6 |
| Smoke Range (SN) | 5.4-6.9 | 5.4-6.9 | 7.3-8.5 |
| Smoke Characteristic (SN) | 7.7 | 7.7 | 10.2 |
| Smoke Characteristicto Regulatory (% of limit) | 32.4 | 32.4 | 43.7 |
| Fuel Flow Take Off (kg/s) | 0.985 | 0.985 | 1.114 |
| Fuel Flow Climbout (kg/s) | 0.819 | 0.819 | 0.911 |
| Fuel Flow Approach (kg/s) | 0.311 | 0.311 | 0.318 |
| Fuel Flow Idle (kg/s) | 0.128 | 0.128 | 0.13 |
| Fuel LTO (kg) | 424 | 424 | 446 |
| Fuel Venting Compliant | No | No | No |
| Carbon Monoxide LTO (g) | 6578 | 6578 | 5176 |
| Emissions Data Status | C | C | C |
| Engine Status | Out of production | Out of production | Out of production |