| Family |
LEAP-1B |
|
| EASA ID |
20CM099 |
|
| Aircraft Engine Manufacturer |
CFM International |
Ivchenko-Progress ZMKB |
| Aircraft Engine Type |
Turbofan |
Open-rotor |
| Comment |
Boeing 737 MAX |
|
| Dry Weight (kg) |
2780 |
1650 |
| Diameter (mm) |
1763 |
970 |
| Max Rotating Diameter (mm) |
1763 |
|
| Length (mm) |
3147 |
4205 |
| Height (mm) |
2256 |
|
| Width (mm) |
2421 |
|
| Wikipedia Article (URL) |
en.wikipedia.org/wiki/CFM_International_LEAP |
en.wikipedia.org/wiki/Progress_D-27 |
| Fuel |
Jet A |
|
| Fan Blades |
18 |
|
| Geared Fan |
No |
Yes |
| Low-Pressure Compressor Stages |
3 |
|
| High-Pressure Compressor Stages |
10 |
|
| Combustion Chamber |
TAPS II |
Annular combustion chamber |
| High Pressure Compressor Stages |
2 |
|
| Low-Pressure Turbine Stages |
5 |
|
| Afterburner |
No |
No |
| Streams |
2 |
1 |
| Bypass Ratio |
8.3 |
|
| Overall Pressure Ratio |
40.5 |
|
| Maximum Takeoff Thrust (kN) |
124.7 |
119 |
| 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) |
0.51 |
|
| Hydrocarbon Unitary Average (g/kN) |
0.68 |
|
| Hydrocarbon Unitary Sigma (g/kN) |
0.09 |
|
| Hydrocarbon Unitary Range (g/kN) |
0.66-0.84 |
|
| Hydrocarbon Unitary Characteristic (g/kN) |
1.05 |
|
| Hydrocarbon Unitary Characteristicto Regulatory (% of limit) |
5.4 |
|
| Hydrocarbon LTO (g) |
85 |
|
| Carbon Monoxide Take Off (g/kg fuel) |
0.17 |
|
| Carbon Monoxide Climb Out (g/kg fuel) |
0.14 |
|
| Carbon Monoxide Approach (g/kg fuel) |
1.11 |
|
| Carbon Monoxide Idle (g/kg fuel) |
14.4 |
|
| Carbon Monoxide Unitary Average (g/kN) |
17.81 |
|
| Carbon Monoxide Unitary SD (g/kN) |
0.77 |
|
| Carbon Monoxide Unitary Range (g/kN) |
16.97-18.38 |
|
| Carbon Monoxide Unitary Characteristic (g/kN) |
21.86 |
|
| Carbon Monoxide Unitary Characteristicto Regulatory (% of limit) |
18.5 |
|
| NOx Take Off (g/kg fuel) |
55.26 |
|
| NOx Climb Out (g/kg fuel) |
23.26 |
|
| NOx Approach (g/kg fuel) |
11.59 |
|
| NOx Idle (g/kg fuel) |
4.59 |
|
| NOx Unitary Average (g/kN) |
50.72 |
|
| NOx Unitary SD (g/kN) |
1.38 |
|
| NOx Unitary Range (g/kN) |
56.39-59.15 |
|
| NOx Unitary Characteristic (g/kN) |
58.79 |
|
| NOx Unitaryto Standard (% of limit) |
48.6 |
|
| NOx Unitaryto CAEP2 (% of limit) |
60.7 |
|
| NOx Unitaryto CAEP4 (% of limit) |
66.8 |
|
| NOx Unitaryto CAEP6 (% of limit) |
73.5 |
|
| NOx Unitaryto CAEP8 (% of limit) |
82.7 |
|
| NOx LTO (g) |
6326 |
|
| 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) |
6.7 |
|
| Fuel Flow Take Off (kg/s) |
1.014 |
|
| Fuel Flow Climbout (kg/s) |
0.826 |
|
| Fuel Flow Approach (kg/s) |
0.273 |
|
| Fuel Flow Idle (kg/s) |
0.095 |
|
| Fuel LTO (kg) |
365 |
|
| Fuel Venting Compliant |
Yes |
|
| Carbon Monoxide LTO (g) |
2221 |
|
| Compressor Description |
1 fan, 3-stage LP, 10-stage HP |
5-stage axial flow low-pressure compressor (LPC); high-pressure compressor (HPC) with 2 axial stages and 1 centrifugal stage |
| Emissions Data Status |
C |
|
| Emissions Data Superseded |
Yes |
|
| Emissions Superseded By |
01P20CM137 |
|
| NOx Compliance Demonstration |
2.3.2 e) |
|
| Turbine Description |
2-stage HP, 5-stage LP |
1-stage high-pressure turbine (HPT), 1-stage low-pressure turbine (LPT), 4-stage free power turbine |