| LEAP-1B28/28B1/28B2/28B3 ✕ | |
|---|---|
| Family | LEAP-1B |
| EASA ID | 01P20CM140 |
| Aircraft Engine Manufacturer | CFM International |
| Aircraft Engine Type | Turbofan |
| Comment | Boeing 737 MAX |
| Dry Weight (kg) | 2780 |
| Diameter (mm) | 1763 |
| Max Rotating Diameter (mm) | 1763 |
| Length (mm) | 3147 |
| Height (mm) | 2256 |
| Width (mm) | 2421 |
| Wikipedia Article (URL) | en.wikipedia.org/wiki/CFM_International_LEAP |
| Fuel | Jet A |
| Fan Blades | 18 |
| Geared Fan | No |
| Low-Pressure Compressor Stages | 3 |
| High-Pressure Compressor Stages | 10 |
| Combustion Chamber | TAPS II |
| High Pressure Compressor Stages | 2 |
| Low-Pressure Turbine Stages | 5 |
| Afterburner | No |
| Streams | 2 |
| Bypass Ratio | 8.3 |
| Overall Pressure Ratio | 42 |
| Maximum Takeoff Thrust (kN) | 130.4 |
| Hydrocarbon Take Off (g/kg fuel) | 0.05 |
| Hydrocarbon Climb Out (g/kg fuel) | 0.04 |
| Hydrocarbon Approach (g/kg fuel) | 0.05 |
| Hydrocarbon Idle (g/kg fuel) | 0.46 |
| Hydrocarbon Unitary Average (g/kN) | 0.61 |
| Hydrocarbon Unitary Sigma (g/kN) | 0.09 |
| Hydrocarbon Unitary Range (g/kN) | 0.66-0.84 |
| Hydrocarbon Unitary Characteristic (g/kN) | 0.94 |
| Hydrocarbon Unitary Characteristicto Regulatory (% of limit) | 4.8 |
| Hydrocarbon LTO (g) | 79 |
| Carbon Monoxide Take Off (g/kg fuel) | 0.18 |
| Carbon Monoxide Climb Out (g/kg fuel) | 0.15 |
| Carbon Monoxide Approach (g/kg fuel) | 0.99 |
| Carbon Monoxide Idle (g/kg fuel) | 13.77 |
| Carbon Monoxide Unitary Average (g/kN) | 16.68 |
| Carbon Monoxide Unitary SD (g/kN) | 0.77 |
| Carbon Monoxide Unitary Range (g/kN) | 16.97-18.38 |
| Carbon Monoxide Unitary Characteristic (g/kN) | 20.48 |
| Carbon Monoxide Unitary Characteristicto Regulatory (% of limit) | 17.4 |
| NOx Take Off (g/kg fuel) | 64.36 |
| NOx Climb Out (g/kg fuel) | 29.59 |
| NOx Approach (g/kg fuel) | 11.92 |
| NOx Idle (g/kg fuel) | 4.68 |
| NOx Unitary Average (g/kN) | 60.1 |
| NOx Unitary SD (g/kN) | 1.38 |
| NOx Unitary Range (g/kN) | 56.39-59.15 |
| NOx Unitary Characteristic (g/kN) | 69.66 |
| NOx Unitaryto Standard (% of limit) | 56.2 |
| NOx Unitaryto CAEP2 (% of limit) | 70.2 |
| NOx Unitaryto CAEP4 (% of limit) | 76.6 |
| NOx Unitaryto CAEP6 (% of limit) | 84 |
| NOx Unitaryto CAEP8 (% of limit) | 94 |
| NOx LTO (g) | 7837 |
| Smoke Take Off (SN) | 0.94 |
| Smoke Climb Out (SN) | 0.85 |
| Smoke Approach (SN) | 1.07 |
| Smoke Idle (SN) | 0.8 |
| Smoke Max (SN) | 1.16 |
| Smoke Sigma (SN) | 0.29 |
| Smoke Range (SN) | 0.34-0.9 |
| Smoke Characteristic (SN) | 1.49 |
| Smoke Characteristicto Regulatory (% of limit) | 6.8 |
| Fuel Flow Take Off (kg/s) | 1.075 |
| Fuel Flow Climbout (kg/s) | 0.873 |
| Fuel Flow Approach (kg/s) | 0.285 |
| Fuel Flow Idle (kg/s) | 0.097 |
| Fuel LTO (kg) | 380 |
| Fuel Venting Compliant | Yes |
| Carbon Monoxide LTO (g) | 2176 |
| Compressor Description | 1 fan, 3-stage LP, 10-stage HP |
| Emissions Data Status | C |
| Emissions Data Superseded | Yes |
| Emissions Superseded By | 08P28CM143 |
| NOx Compliance Demonstration | 2.3.2 e) |
| nvPME Imass Approach (mg/kg) | 3.8093 |
| nvPME Imass Climb Out (mg/kg) | 0.0143 |
| nvPME Imass Idle (mg/kg) | 0.202 |
| nvPME Imass Max (mg/kg) | 3.809 |
| nvPME Imass Take Off (mg/kg) | 0.0557 |
| nvPME Inum Approach (#/kg) | 118319700000000 |
| nvPME Inum Climb Out (#/kg) | 26005170000 |
| nvPME Inum Idle (#/kg) | 19116910000000 |
| nvPME Inum Max (#/kg) | 117245900000000 |
| nvPME Inum Take Off (#/kg) | 29437190000 |
| nvPMLTO Mass (mg) | 295.4091 |
| nvPMLTO Mass Per Thrust (mg/kN) | 3.1488 |
| nvPMLTO Mass To CAEP11 (% of limit) | 0.9011 |
| nvPMLTO Number (#) | 10992340000000000 |
| nvPMLTO Number Per Thrust (#/kN) | 117169300000000 |
| nvPMLTO Number To CAEP11 (% of limit) | 2.6855 |
| nvPM Mass Concentration Characteristic (mg/m³) | 85 |
| nvPM Mass Concentration Max (mg/m³) | 66 |
| nvPM Mass Concentration To CAEP10 (% of limit) | 1.4653 |
| Turbine Description | 2-stage HP, 5-stage LP |