| Family |
CFM56-7B |
CFM56-5B |
| EASA ID |
4CM039 |
7CM048 |
| Aircraft Engine Manufacturer |
CFM International |
CFM International |
| Aircraft Engine Type |
Turbofan |
Turbofan |
| Comment |
Boeing 737 Next Generation |
Airbus A318, A319, A320, A321 |
| Dry Weight (kg) |
2366 |
2381 |
| Diameter (mm) |
1549 |
1735 |
| Max Rotating Diameter (mm) |
1549 |
1735 |
| Length (mm) |
2507 |
2601 |
| Wikipedia Article (URL) |
en.wikipedia.org/wiki/CFM_International_CFM56 |
en.wikipedia.org/wiki/CFM_International_CFM56 |
| Fuel |
Jet A |
Jet A |
| Fan Blades |
24 |
36 |
| Geared Fan |
No |
No |
| Low-Pressure Compressor Stages |
3 |
4 |
| High-Pressure Compressor Stages |
9 |
9 |
| Combustion Chamber |
|
SAC |
| High Pressure Compressor Stages |
1 |
1 |
| Low-Pressure Turbine Stages |
4 |
4 |
| Afterburner |
No |
No |
| Streams |
2 |
2 |
| Bypass Ratio |
5.4 |
5.9 |
| Overall Pressure Ratio |
22.77 |
22.6 |
| Maximum Takeoff Thrust (kN) |
91.63 |
94.7 |
| Hydrocarbon Take Off (g/kg fuel) |
0.07 |
0.1 |
| Hydrocarbon Climb Out (g/kg fuel) |
0.23 |
0.1 |
| Hydrocarbon Approach (g/kg fuel) |
0.36 |
0.9 |
| Hydrocarbon Idle (g/kg fuel) |
8.11 |
6.5 |
| Hydrocarbon Unitary Average (g/kN) |
14.61 |
10.8 |
| Hydrocarbon Unitary Range (g/kN) |
13.8-15.9 |
|
| Hydrocarbon Unitary Characteristic (g/kN) |
17 |
16.6 |
| Hydrocarbon Unitary Characteristicto Regulatory (% of limit) |
86.9 |
84.7 |
| Hydrocarbon LTO (g) |
1340 |
1023 |
| Carbon Monoxide Take Off (g/kg fuel) |
4.26 |
0.8 |
| Carbon Monoxide Climb Out (g/kg fuel) |
11.38 |
0.8 |
| Carbon Monoxide Approach (g/kg fuel) |
11.37 |
3.9 |
| Carbon Monoxide Idle (g/kg fuel) |
49.71 |
32.9 |
| Carbon Monoxide Unitary Average (g/kN) |
108.63 |
54.4 |
| Carbon Monoxide Unitary Range (g/kN) |
102.1-114.9 |
|
| Carbon Monoxide Unitary Characteristic (g/kN) |
117.5 |
66.8 |
| Carbon Monoxide Unitary Characteristicto Regulatory (% of limit) |
99.6 |
56.6 |
| NOx Take Off (g/kg fuel) |
13.25 |
19.7 |
| NOx Climb Out (g/kg fuel) |
10.81 |
16.7 |
| NOx Approach (g/kg fuel) |
9.39 |
8.4 |
| NOx Idle (g/kg fuel) |
3.75 |
3.4 |
| NOx Unitary Average (g/kN) |
30.58 |
35.4 |
| NOx Unitary Range (g/kN) |
30.4-30.8 |
|
| NOx Unitary Characteristic (g/kN) |
32.4 |
41 |
| NOx Unitaryto Standard (% of limit) |
37.9 |
48.1 |
| NOx Unitaryto CAEP2 (% of limit) |
47.3 |
60.2 |
| NOx Unitaryto CAEP4 (% of limit) |
58.4 |
74.4 |
| NOx Unitaryto CAEP6 (% of limit) |
66.4 |
84.5 |
| NOx Unitaryto CAEP8 (% of limit) |
81.1 |
103.3 |
| NOx LTO (g) |
2802 |
3358 |
| Smoke Take Off (SN) |
0.7 |
5.4 |
| Smoke Climb Out (SN) |
0.7 |
1.5 |
| Smoke Approach (SN) |
1.5 |
0.3 |
| Smoke Idle (SN) |
0.7 |
0.6 |
| Smoke Max (SN) |
1.52 |
5.4 |
| Smoke Range (SN) |
0-3.4 |
|
| Smoke Characteristic (SN) |
1.7 |
6.9 |
| Smoke Characteristicto Regulatory (% of limit) |
6.9 |
28.7 |
| Fuel Flow Take Off (kg/s) |
0.903 |
0.875 |
| Fuel Flow Climbout (kg/s) |
0.754 |
0.729 |
| Fuel Flow Approach (kg/s) |
0.278 |
0.262 |
| Fuel Flow Idle (kg/s) |
0.102 |
0.094 |
| Fuel LTO (kg) |
363 |
342 |
| Fuel Venting Compliant |
No |
No |
| Carbon Monoxide LTO (g) |
9963 |
5176 |
| Compressor Description |
1 fan, 3-stage LP, 9-stage HP |
1 fan, 4-stage LP, 9-stage HP |
| Emissions Data Status |
C |
C |
| Engine Status |
Out of production |
Out of production |
| Turbine Description |
1-stage HP, 4-stage LP |
1-stage HP, 4-stage LP |