| Family |
LEAP-1A |
LEAP-1C |
| EASA ID |
08P28CM151 |
08P28CM149 |
| Aircraft Engine Manufacturer |
CFM International |
CFM International |
| Aircraft Engine Type |
Turbofan |
Turbofan |
| Comment |
Airbus A320neo family |
COMAC C919 |
| Full Weight (kg) |
3153 |
3935 |
| Diameter (mm) |
1981 |
1956 |
| Max Rotating Diameter (mm) |
1981 |
1956 |
| Length (mm) |
3328 |
4505 |
| Height (mm) |
2362 |
2714 |
| Width (mm) |
2543 |
2659 |
| Wikipedia Article (URL) |
en.wikipedia.org/wiki/CFM_International_LEAP |
en.wikipedia.org/wiki/CFM_International_LEAP |
| Fuel |
Jet A |
JET-A1 |
| Fan Blades |
18 |
18 |
| Geared Fan |
No |
No |
| Low-Pressure Compressor Stages |
3 |
|
| High-Pressure Compressor Stages |
10 |
|
| Combustion Chamber |
TAPS II |
TAPS II |
| High Pressure Compressor Stages |
2 |
|
| Low-Pressure Turbine Stages |
7 |
|
| Afterburner |
No |
No |
| Streams |
2 |
2 |
| Bypass Ratio |
10.3769 |
10.4525 |
| Overall Pressure Ratio |
38.3582 |
37.1195 |
| Maximum Takeoff Thrust (kN) |
143.0548 |
137.1379 |
| Hydrocarbon Take Off (g/kg fuel) |
0.0378 |
0.0332 |
| Hydrocarbon Climb Out (g/kg fuel) |
0.0278 |
0.0246 |
| Hydrocarbon Approach (g/kg fuel) |
0.0538 |
0.0536 |
| Hydrocarbon Idle (g/kg fuel) |
0.6093 |
0.6557 |
| Hydrocarbon Unitary Average (g/kN) |
0.6864 |
0.7665 |
| Hydrocarbon Unitary Sigma (g/kN) |
0.1425 |
0.2 |
| Hydrocarbon Unitary Range (g/kN) |
0.48-0.88 |
0.5-1 |
| Hydrocarbon Unitary Characteristic (g/kN) |
0.7832 |
0.8746 |
| Hydrocarbon Unitary Characteristicto Regulatory (% of limit) |
3.996 |
4.4623 |
| Hydrocarbon LTO (g) |
98.1936 |
105.1166 |
| Carbon Monoxide Take Off (g/kg fuel) |
0.021 |
0.0104 |
| Carbon Monoxide Climb Out (g/kg fuel) |
0.0146 |
0.016 |
| Carbon Monoxide Approach (g/kg fuel) |
1.8961 |
2.114 |
| Carbon Monoxide Idle (g/kg fuel) |
21.2583 |
22.0567 |
| Carbon Monoxide Unitary Average (g/kN) |
22.7796 |
24.9431 |
| Carbon Monoxide Unitary SD (g/kN) |
0.897 |
1.1 |
| Carbon Monoxide Unitary Range (g/kN) |
21.68-24.03 |
23.7-26.6 |
| Carbon Monoxide Unitary Characteristic (g/kN) |
24.3711 |
26.6857 |
| Carbon Monoxide Unitary Characteristicto Regulatory (% of limit) |
20.6535 |
22.615 |
| NOx Take Off (g/kg fuel) |
60.9187 |
57.9275 |
| NOx Climb Out (g/kg fuel) |
35.3315 |
33.3728 |
| NOx Approach (g/kg fuel) |
9.7242 |
9.3776 |
| NOx Idle (g/kg fuel) |
4.5656 |
4.4842 |
| NOx Unitary Average (g/kN) |
56.9152 |
53.9265 |
| NOx Unitary SD (g/kN) |
0.7372 |
1.1 |
| NOx Unitary Range (g/kN) |
55.88-57.88 |
52.5-55.2 |
| NOx Unitary Characteristic (g/kN) |
59.81 |
56.6693 |
| NOx Unitaryto Standard (% of limit) |
51.2439 |
49.6 |
| NOx Unitaryto CAEP2 (% of limit) |
64.0549 |
62 |
| NOx Unitaryto CAEP4 (% of limit) |
71.4436 |
69.8 |
| NOx Unitaryto CAEP6 (% of limit) |
79.034 |
77.4 |
| NOx Unitaryto CAEP8 (% of limit) |
89.4872 |
88.1 |
| NOx LTO (g) |
8141.999 |
7395.37 |
| Smoke Take Off (SN) |
0.5756 |
0.7065 |
| Smoke Climb Out (SN) |
0.7048 |
0.6868 |
| Smoke Approach (SN) |
0.6433 |
0.6074 |
| Smoke Idle (SN) |
0.6259 |
0.6236 |
| Smoke Max (SN) |
1.203 |
1.203 |
| Smoke Sigma (SN) |
0.3443 |
0.3 |
| Smoke Range (SN) |
0.81-1.41 |
0.8-1.4 |
| Smoke Characteristic (SN) |
1.5485 |
0.9094 |
| Smoke Characteristicto Regulatory (% of limit) |
7.2164 |
4.1891 |
| Fuel Flow Take Off (kg/s) |
1.0674 |
1.0105 |
| Fuel Flow Climbout (kg/s) |
0.8732 |
0.8288 |
| Fuel Flow Approach (kg/s) |
0.2858 |
0.2752 |
| Fuel Flow Idle (kg/s) |
0.0943 |
0.0953 |
| Fuel LTO (kg) |
375.7442 |
366.5356 |
| Fuel Venting Compliant |
Yes |
Yes |
| Carbon Monoxide LTO (g) |
3258.738 |
3420.645 |
| Compressor Description |
1 fan, 3-stage LP, 10-stage HP |
|
| Emissions Data Status |
C |
R |
| NOx Compliance Demonstration |
2.3.2 e) |
2.3.2 e) |
| nvPME Imass Approach (mg/kg) |
3.3157 |
2.5264 |
| nvPME Imass Climb Out (mg/kg) |
0.6743 |
0.6701 |
| nvPME Imass Idle (mg/kg) |
1.437 |
1.4487 |
| nvPME Imass Max (mg/kg) |
12.784 |
12.685 |
| nvPME Imass Take Off (mg/kg) |
0.6614 |
0.6453 |
| nvPME Inum Approach (#/kg) |
130438900000000 |
98120940000000 |
| nvPME Inum Climb Out (#/kg) |
14571780000 |
13228930000 |
| nvPME Inum Idle (#/kg) |
18871160000000 |
20465390000000 |
| nvPME Inum Max (#/kg) |
458823700000000 |
455564100000000 |
| nvPME Inum Take Off (#/kg) |
14002570000 |
14930710000 |
| nvPMLTO Mass (mg) |
546.1272 |
482.9013 |
| nvPMLTO Mass Per Thrust (mg/kN) |
4.2366 |
3.9078 |
| nvPMLTO Mass To CAEP11 (% of limit) |
1.6169 |
1.29 |
| nvPMLTO Number (#) |
11724800000000000 |
9524264000000000 |
| nvPMLTO Number Per Thrust (#/kN) |
90955720000000 |
77072790000000 |
| nvPMLTO Number To CAEP11 (% of limit) |
2.7223 |
2.018 |
| nvPM Mass Concentration Characteristic (mg/m³) |
165.986 |
165.986 |
| nvPM Mass Concentration Max (mg/m³) |
152.9229 |
152.9229 |
| nvPM Mass Concentration To CAEP10 (% of limit) |
2.9902 |
2.9311 |
| Turbine Description |
2-stage HP, 7-stage LP |
|