| Family |
CFM56-5B |
CFM56-7B |
| EASA ID |
7CM049 |
8CM063 |
| Aircraft Engine Manufacturer |
CFM International |
CFM International |
| Aircraft Engine Type |
Turbofan |
Turbofan |
| Comment |
Airbus A318, A319, A320, A321 |
Boeing 737 Next Generation |
| Dry Weight (kg) |
2381 |
2366 |
| Diameter (mm) |
1735 |
1549 |
| Max Rotating Diameter (mm) |
1735 |
1549 |
| Length (mm) |
2601 |
2507 |
| Wikipedia Article (URL) |
en.wikipedia.org/wiki/CFM_International_CFM56 |
en.wikipedia.org/wiki/CFM_International_CFM56 |
| Fuel |
Jet A |
Jet A |
| Fan Blades |
36 |
24 |
| Geared Fan |
No |
No |
| Low-Pressure Compressor Stages |
4 |
3 |
| High-Pressure Compressor Stages |
9 |
9 |
| Combustion Chamber |
SAC |
Tech Insertion |
| High Pressure Compressor Stages |
1 |
1 |
| Low-Pressure Turbine Stages |
4 |
4 |
| Afterburner |
No |
No |
| Streams |
2 |
2 |
| Bypass Ratio |
5.9 |
5.3 |
| Overall Pressure Ratio |
24 |
24.2 |
| Maximum Takeoff Thrust (kN) |
102.2 |
101 |
| Hydrocarbon Take Off (g/kg fuel) |
0.1 |
0.02 |
| Hydrocarbon Climb Out (g/kg fuel) |
0.1 |
0.03 |
| Hydrocarbon Approach (g/kg fuel) |
0.8 |
0.07 |
| Hydrocarbon Idle (g/kg fuel) |
5.9 |
2.83 |
| Hydrocarbon Unitary Average (g/kN) |
9.4 |
4.43 |
| Hydrocarbon Unitary Sigma (g/kN) |
|
0.51 |
| Hydrocarbon Unitary Range (g/kN) |
|
3.85-4.83 |
| Hydrocarbon Unitary Characteristic (g/kN) |
14.4 |
5.16 |
| Hydrocarbon Unitary Characteristicto Regulatory (% of limit) |
73.5 |
26.3 |
| Hydrocarbon LTO (g) |
970 |
447 |
| Carbon Monoxide Take Off (g/kg fuel) |
0.8 |
0.16 |
| Carbon Monoxide Climb Out (g/kg fuel) |
0.8 |
0.17 |
| Carbon Monoxide Approach (g/kg fuel) |
3.7 |
4.18 |
| Carbon Monoxide Idle (g/kg fuel) |
30.4 |
37.9 |
| Carbon Monoxide Unitary Average (g/kN) |
48.7 |
61.19 |
| Carbon Monoxide Unitary SD (g/kN) |
|
3.3 |
| Carbon Monoxide Unitary Range (g/kN) |
|
57.8-64.1 |
| Carbon Monoxide Unitary Characteristic (g/kN) |
59.7 |
66.2 |
| Carbon Monoxide Unitary Characteristicto Regulatory (% of limit) |
50.6 |
56.1 |
| NOx Take Off (g/kg fuel) |
21.4 |
17.4 |
| NOx Climb Out (g/kg fuel) |
17.9 |
14.67 |
| NOx Approach (g/kg fuel) |
8.8 |
8.35 |
| NOx Idle (g/kg fuel) |
3.6 |
3.95 |
| NOx Unitary Average (g/kN) |
37.9 |
35.06 |
| NOx Unitary SD (g/kN) |
|
1.2 |
| NOx Unitary Range (g/kN) |
|
34-36.3 |
| NOx Unitary Characteristic (g/kN) |
43.9 |
37.1 |
| NOx Unitaryto Standard (% of limit) |
49.9 |
42 |
| NOx Unitaryto CAEP2 (% of limit) |
62.4 |
52.5 |
| NOx Unitaryto CAEP4 (% of limit) |
76.5 |
64.3 |
| NOx Unitaryto CAEP6 (% of limit) |
86.9 |
73 |
| NOx Unitaryto CAEP8 (% of limit) |
105.4 |
88.4 |
| NOx LTO (g) |
3875 |
3540 |
| Smoke Take Off (SN) |
5.4 |
9.8 |
| Smoke Climb Out (SN) |
2.1 |
8 |
| Smoke Approach (SN) |
0.3 |
2.1 |
| Smoke Idle (SN) |
0.6 |
2.1 |
| Smoke Max (SN) |
5.4 |
9.84 |
| Smoke Sigma (SN) |
|
2.3 |
| Smoke Range (SN) |
|
8-12.4 |
| Smoke Characteristic (SN) |
6.9 |
10.83 |
| Smoke Characteristicto Regulatory (% of limit) |
29.3 |
45.9 |
| Fuel Flow Take Off (kg/s) |
0.954 |
1.004 |
| Fuel Flow Climbout (kg/s) |
0.794 |
0.832 |
| Fuel Flow Approach (kg/s) |
0.28 |
0.291 |
| Fuel Flow Idle (kg/s) |
0.098 |
0.099 |
| Fuel LTO (kg) |
365 |
377 |
| Fuel Venting Compliant |
No |
Yes |
| Carbon Monoxide LTO (g) |
5012 |
6179 |
| Compressor Description |
1 fan, 4-stage LP, 9-stage HP |
1 fan, 3-stage LP, 9-stage HP |
| Emissions Data Status |
C |
C |
| Engine Status |
Out of production |
Out of production |
| NOx Compliance Demonstration |
|
2.3.2 e) |
| Turbine Description |
1-stage HP, 4-stage LP |
1-stage HP, 4-stage LP |