| Family |
CFM56-7B |
CFM56-5B |
| EASA ID |
8CM051 |
2CM018 |
| 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 |
|
DAC |
| High Pressure Compressor Stages |
1 |
1 |
| Low-Pressure Turbine Stages |
4 |
4 |
| Afterburner |
No |
No |
| Streams |
2 |
2 |
| Bypass Ratio |
5.1 |
5.7 |
| Overall Pressure Ratio |
27.61 |
27.1 |
| Maximum Takeoff Thrust (kN) |
116.99 |
117.9 |
| Hydrocarbon Take Off (g/kg fuel) |
0.1 |
0.1 |
| Hydrocarbon Climb Out (g/kg fuel) |
0.1 |
0.1 |
| Hydrocarbon Approach (g/kg fuel) |
0.1 |
11.4 |
| Hydrocarbon Idle (g/kg fuel) |
1.9 |
2.2 |
| Hydrocarbon Unitary Average (g/kN) |
3.06 |
11.2 |
| Hydrocarbon Unitary Range (g/kN) |
|
10.4-12 |
| Hydrocarbon Unitary Characteristic (g/kN) |
4.7 |
14.6 |
| Hydrocarbon Unitary Characteristicto Regulatory (% of limit) |
24 |
74.5 |
| Hydrocarbon LTO (g) |
361 |
1350 |
| Carbon Monoxide Take Off (g/kg fuel) |
0.2 |
1.6 |
| Carbon Monoxide Climb Out (g/kg fuel) |
0.6 |
4.9 |
| Carbon Monoxide Approach (g/kg fuel) |
1.6 |
43.8 |
| Carbon Monoxide Idle (g/kg fuel) |
18.8 |
37.1 |
| Carbon Monoxide Unitary Average (g/kN) |
30.33 |
93.5 |
| Carbon Monoxide Unitary Range (g/kN) |
|
87.6-99.3 |
| Carbon Monoxide Unitary Characteristic (g/kN) |
37.2 |
106.5 |
| Carbon Monoxide Unitary Characteristicto Regulatory (% of limit) |
31.5 |
90.3 |
| NOx Take Off (g/kg fuel) |
28.8 |
16.61 |
| NOx Climb Out (g/kg fuel) |
22.5 |
12.58 |
| NOx Approach (g/kg fuel) |
10.8 |
6.13 |
| NOx Idle (g/kg fuel) |
4.7 |
4.49 |
| NOx Unitary Average (g/kN) |
52.64 |
31.5 |
| NOx Unitary Range (g/kN) |
|
31-31.9 |
| NOx Unitary Characteristic (g/kN) |
61 |
34.6 |
| NOx Unitaryto Standard (% of limit) |
64 |
36.7 |
| NOx Unitaryto CAEP2 (% of limit) |
80.1 |
45.9 |
| NOx Unitaryto CAEP4 (% of limit) |
96.6 |
55.5 |
| NOx Unitaryto CAEP6 (% of limit) |
109.7 |
63.1 |
| NOx Unitaryto CAEP8 (% of limit) |
130.5 |
75.2 |
| NOx LTO (g) |
6149 |
3783 |
| Smoke Take Off (SN) |
14.7 |
0.5 |
| Smoke Climb Out (SN) |
11.9 |
0.5 |
| Smoke Approach (SN) |
0 |
2.3 |
| Smoke Idle (SN) |
0 |
3.5 |
| Smoke Max (SN) |
14.7 |
4.75 |
| Smoke Range (SN) |
|
4.5-5 |
| Smoke Characteristic (SN) |
18.9 |
5.6 |
| Smoke Characteristicto Regulatory (% of limit) |
83.4 |
24.8 |
| Fuel Flow Take Off (kg/s) |
1.221 |
1.18 |
| Fuel Flow Climbout (kg/s) |
0.999 |
0.975 |
| Fuel Flow Approach (kg/s) |
0.338 |
0.335 |
| Fuel Flow Idle (kg/s) |
0.113 |
0.121 |
| Fuel LTO (kg) |
441 |
447 |
| Fuel Venting Compliant |
|
No |
| Carbon Monoxide LTO (g) |
3533 |
11234 |
| 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 |