| Family |
CFM56-7B |
CFM56-5B |
| EASA ID |
3CM034 |
8CM055 |
| Aircraft Engine Manufacturer |
GE Aircraft Engines |
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 |
|
Tech Insertion |
| High Pressure Compressor Stages |
1 |
1 |
| Low-Pressure Turbine Stages |
4 |
4 |
| Afterburner |
No |
No |
| Streams |
2 |
2 |
| Bypass Ratio |
5 |
5.7 |
| Overall Pressure Ratio |
28.63 |
27.3 |
| Maximum Takeoff Thrust (kN) |
121.44 |
120.1 |
| Hydrocarbon Take Off (g/kg fuel) |
0.1 |
0.02 |
| Hydrocarbon Climb Out (g/kg fuel) |
0.1 |
0.02 |
| Hydrocarbon Approach (g/kg fuel) |
0.1 |
0.05 |
| Hydrocarbon Idle (g/kg fuel) |
1.7 |
1.92 |
| Hydrocarbon Unitary Average (g/kN) |
2.76 |
2.61 |
| Hydrocarbon Unitary Sigma (g/kN) |
|
0.36 |
| Hydrocarbon Unitary Range (g/kN) |
|
2.21-2.93 |
| Hydrocarbon Unitary Characteristic (g/kN) |
4.3 |
3.05 |
| Hydrocarbon Unitary Characteristicto Regulatory (% of limit) |
21.9 |
15.6 |
| Hydrocarbon LTO (g) |
335 |
314 |
| Carbon Monoxide Take Off (g/kg fuel) |
0.2 |
0.25 |
| Carbon Monoxide Climb Out (g/kg fuel) |
0.5 |
0.16 |
| Carbon Monoxide Approach (g/kg fuel) |
1.4 |
3.24 |
| Carbon Monoxide Idle (g/kg fuel) |
17.9 |
32.07 |
| Carbon Monoxide Unitary Average (g/kN) |
28.3 |
44.84 |
| Carbon Monoxide Unitary SD (g/kN) |
|
2.4 |
| Carbon Monoxide Unitary Range (g/kN) |
|
42-46.6 |
| Carbon Monoxide Unitary Characteristic (g/kN) |
34.7 |
48.5 |
| Carbon Monoxide Unitary Characteristicto Regulatory (% of limit) |
29.4 |
41.1 |
| NOx Take Off (g/kg fuel) |
30.9 |
21.57 |
| NOx Climb Out (g/kg fuel) |
23.7 |
17.23 |
| NOx Approach (g/kg fuel) |
11 |
8.85 |
| NOx Idle (g/kg fuel) |
4.8 |
4.22 |
| NOx Unitary Average (g/kN) |
55.27 |
37.56 |
| NOx Unitary SD (g/kN) |
|
1.1 |
| NOx Unitary Range (g/kN) |
|
36.6-38.8 |
| NOx Unitary Characteristic (g/kN) |
64.1 |
39.8 |
| NOx Unitaryto Standard (% of limit) |
65.9 |
42.1 |
| NOx Unitaryto CAEP2 (% of limit) |
82.4 |
52.6 |
| NOx Unitaryto CAEP4 (% of limit) |
98.9 |
63.5 |
| NOx Unitaryto CAEP6 (% of limit) |
112.4 |
72.2 |
| NOx Unitaryto CAEP8 (% of limit) |
133 |
85.9 |
| NOx LTO (g) |
6719 |
4511 |
| Smoke Take Off (SN) |
15.7 |
13.4 |
| Smoke Climb Out (SN) |
12.1 |
9.9 |
| Smoke Approach (SN) |
0 |
2.1 |
| Smoke Idle (SN) |
0 |
2.1 |
| Smoke Max (SN) |
15.7 |
13.4 |
| Smoke Sigma (SN) |
|
4.5 |
| Smoke Range (SN) |
|
8.4-16.9 |
| Smoke Characteristic (SN) |
20.2 |
14.7 |
| Smoke Characteristicto Regulatory (% of limit) |
90 |
65.3 |
| Fuel Flow Take Off (kg/s) |
1.284 |
1.142 |
| Fuel Flow Climbout (kg/s) |
1.043 |
0.939 |
| Fuel Flow Approach (kg/s) |
0.349 |
0.316 |
| Fuel Flow Idle (kg/s) |
0.116 |
0.102 |
| Fuel LTO (kg) |
456 |
407 |
| Fuel Venting Compliant |
No |
Yes |
| Carbon Monoxide LTO (g) |
3436 |
5386 |
| Compressor Description |
1 fan, 3-stage LP, 9-stage HP |
1 fan, 4-stage LP, 9-stage HP |
| Emissions Data Status |
C |
C |
| Emissions Data Superseded |
|
Yes |
| Emissions Superseded By |
|
01P08CM105 |
| Engine Status |
Out of production |
|
| NOx Compliance Demonstration |
|
2.3.2 e) |
| Turbine Description |
1-stage HP, 4-stage LP |
1-stage HP, 4-stage LP |