| CFM56-2B-1 ✕ | CFM56-3B-2 ✕ | |
|---|---|---|
| Family | CFM56-2 | CFM56-3 |
| EASA ID | 1CM002 | 1CM005 |
| Aircraft Engine Manufacturer | CFM International | CFM International |
| Aircraft Engine Type | Turbofan | Turbofan |
| Comment | DC-8-70, KC-135R, E-3, E-6 | Boeing 737 Classic |
| Dry Weight (kg) | 2186 | 1951 |
| Diameter (mm) | 1735 | 1524 |
| Max Rotating Diameter (mm) | 1735 | 1524 |
| Wikipedia Article (URL) | en.wikipedia.org/wiki/CFM_International_CFM56 | en.wikipedia.org/wiki/CFM_International_CFM56 |
| Fuel | Jet A | Jet A |
| Geared Fan | No | No |
| Afterburner | No | No |
| Streams | 2 | 2 |
| Bypass Ratio | 6 | 5.1 |
| Overall Pressure Ratio | 23.5 | 24.1 |
| Maximum Takeoff Thrust (kN) | 97.86 | 98.3 |
| Hydrocarbon Take Off (g/kg fuel) | 0.04 | 0.036 |
| Hydrocarbon Climb Out (g/kg fuel) | 0.05 | 0.047 |
| Hydrocarbon Approach (g/kg fuel) | 0.08 | 0.073 |
| Hydrocarbon Idle (g/kg fuel) | 1.83 | 1.75 |
| Hydrocarbon Unitary Average (g/kN) | 3.87 | 3.44 |
| Hydrocarbon Unitary Sigma (g/kN) | 0.41 | 0.37 |
| Hydrocarbon Unitary Range (g/kN) | 3.4-4.15 | 3.01-3.67 |
| Hydrocarbon Unitary Characteristic (g/kN) | 6 | 5.3 |
| Hydrocarbon Unitary Characteristicto Regulatory (% of limit) | 30.4 | 27 |
| Hydrocarbon LTO (g) | 378 | 337 |
| Carbon Monoxide Take Off (g/kg fuel) | 0.9 | 0.9 |
| Carbon Monoxide Climb Out (g/kg fuel) | 0.9 | 0.9 |
| Carbon Monoxide Approach (g/kg fuel) | 4.2 | 3.4 |
| Carbon Monoxide Idle (g/kg fuel) | 30.7 | 30.1 |
| Carbon Monoxide Unitary Average (g/kN) | 67.2 | 61 |
| Carbon Monoxide Unitary SD (g/kN) | 4.1 | 3.8 |
| Carbon Monoxide Unitary Range (g/kN) | 63.5-71.7 | 57.6-65.1 |
| Carbon Monoxide Unitary Characteristic (g/kN) | 82.5 | 74.9 |
| Carbon Monoxide Unitary Characteristicto Regulatory (% of limit) | 69.9 | 63.5 |
| NOx Take Off (g/kg fuel) | 18.5 | 19.4 |
| NOx Climb Out (g/kg fuel) | 16 | 16.7 |
| NOx Approach (g/kg fuel) | 8.2 | 8.7 |
| NOx Idle (g/kg fuel) | 4 | 4.1 |
| NOx Unitary Average (g/kN) | 39.9 | 42.9 |
| NOx Unitary SD (g/kN) | 0.6 | 0.81 |
| NOx Unitary Range (g/kN) | 39.4-40.5 | 42.4-43.9 |
| NOx Unitary Characteristic (g/kN) | 46.3 | 49.7 |
| NOx Unitaryto Standard (% of limit) | 53.2 | 56.4 |
| NOx Unitaryto CAEP2 (% of limit) | 66.5 | 70.5 |
| NOx Unitaryto CAEP4 (% of limit) | 81.7 | 86.4 |
| NOx Unitaryto CAEP6 (% of limit) | 92.9 | 98.2 |
| NOx Unitaryto CAEP8 (% of limit) | 113 | 118.9 |
| NOx LTO (g) | 3906 | 4213 |
| Smoke Take Off (SN) | 6 | 6 |
| Smoke Climb Out (SN) | 3 | 3 |
| Smoke Approach (SN) | 2.6 | 2.5 |
| Smoke Idle (SN) | 2.2 | 2.2 |
| Smoke Max (SN) | 6 | 6 |
| Smoke Sigma (SN) | 0.8 | 0.8 |
| Smoke Range (SN) | 5.4-6.9 | 5.4-6.9 |
| Smoke Characteristic (SN) | 7.7 | 7.7 |
| Smoke Characteristicto Regulatory (% of limit) | 32.4 | 32.5 |
| Fuel Flow Take Off (kg/s) | 0.985 | 1.056 |
| Fuel Flow Climbout (kg/s) | 0.819 | 0.878 |
| Fuel Flow Approach (kg/s) | 0.311 | 0.314 |
| Fuel Flow Idle (kg/s) | 0.128 | 0.119 |
| Fuel LTO (kg) | 424 | 421 |
| Fuel Venting Compliant | No | No |
| Carbon Monoxide LTO (g) | 6578 | 5988 |
| Emissions Data Status | C | R |
| Engine Status | Out of production | Out of production |