| Family |
CFM56-7B |
CFM56-3 |
| EASA ID |
3CM029 |
1CM004 |
| Aircraft Engine Manufacturer |
CFM International |
CFM International |
| Aircraft Engine Type |
Turbofan |
Turbofan |
| Comment |
Boeing 737 Next Generation |
Boeing 737 Classic |
| Dry Weight (kg) |
2366 |
1951 |
| Diameter (mm) |
1549 |
1524 |
| Max Rotating Diameter (mm) |
1549 |
1524 |
| Length (mm) |
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 |
24 |
|
| Geared Fan |
No |
No |
| Low-Pressure Compressor Stages |
3 |
|
| High-Pressure Compressor Stages |
9 |
|
| High Pressure Compressor Stages |
1 |
|
| Low-Pressure Turbine Stages |
4 |
|
| Afterburner |
No |
No |
| Streams |
2 |
2 |
| Bypass Ratio |
5.5 |
5.1 |
| Overall Pressure Ratio |
21.59 |
22.44 |
| Maximum Takeoff Thrust (kN) |
86.74 |
89.41 |
| Hydrocarbon Take Off (g/kg fuel) |
0.1 |
0.04 |
| Hydrocarbon Climb Out (g/kg fuel) |
0.1 |
0.05 |
| Hydrocarbon Approach (g/kg fuel) |
0.1 |
0.08 |
| Hydrocarbon Idle (g/kg fuel) |
3.5 |
2.28 |
| Hydrocarbon Unitary Average (g/kN) |
6.32 |
4.67 |
| Hydrocarbon Unitary Sigma (g/kN) |
|
0.53 |
| Hydrocarbon Unitary Range (g/kN) |
|
4.17-5.22 |
| Hydrocarbon Unitary Characteristic (g/kN) |
9.7 |
7.2 |
| Hydrocarbon Unitary Characteristicto Regulatory (% of limit) |
49.5 |
36.7 |
| Hydrocarbon LTO (g) |
549 |
418 |
| Carbon Monoxide Take Off (g/kg fuel) |
0.6 |
0.9 |
| Carbon Monoxide Climb Out (g/kg fuel) |
0.4 |
0.95 |
| Carbon Monoxide Approach (g/kg fuel) |
3.6 |
3.8 |
| Carbon Monoxide Idle (g/kg fuel) |
28.3 |
34.4 |
| Carbon Monoxide Unitary Average (g/kN) |
52.45 |
72.9 |
| Carbon Monoxide Unitary SD (g/kN) |
|
5.1 |
| Carbon Monoxide Unitary Range (g/kN) |
|
68.5-78.5 |
| Carbon Monoxide Unitary Characteristic (g/kN) |
64.4 |
89.5 |
| Carbon Monoxide Unitary Characteristicto Regulatory (% of limit) |
54.6 |
75.8 |
| NOx Take Off (g/kg fuel) |
19.2 |
17.7 |
| NOx Climb Out (g/kg fuel) |
16.6 |
15.5 |
| NOx Approach (g/kg fuel) |
9.1 |
8.3 |
| NOx Idle (g/kg fuel) |
4.3 |
3.9 |
| NOx Unitary Average (g/kN) |
39.99 |
40.3 |
| NOx Unitary SD (g/kN) |
|
0.8 |
| NOx Unitary Range (g/kN) |
|
39.6-41.2 |
| NOx Unitary Characteristic (g/kN) |
46.4 |
46.7 |
| NOx Unitaryto Standard (% of limit) |
55.8 |
55 |
| NOx Unitaryto CAEP2 (% of limit) |
69.7 |
68.8 |
| NOx Unitaryto CAEP4 (% of limit) |
85.8 |
85.1 |
| NOx Unitaryto CAEP6 (% of limit) |
97 |
96.7 |
| NOx Unitaryto CAEP8 (% of limit) |
118.4 |
118.3 |
| NOx LTO (g) |
3472 |
3595 |
| Smoke Take Off (SN) |
10.7 |
4 |
| Smoke Climb Out (SN) |
6.4 |
2.5 |
| Smoke Approach (SN) |
0 |
2.5 |
| Smoke Idle (SN) |
0 |
2.2 |
| Smoke Max (SN) |
10.7 |
4 |
| Smoke Sigma (SN) |
|
0.6 |
| Smoke Range (SN) |
|
3.4-4.5 |
| Smoke Characteristic (SN) |
13.8 |
5.1 |
| Smoke Characteristicto Regulatory (% of limit) |
56.1 |
21.1 |
| Fuel Flow Take Off (kg/s) |
0.854 |
0.946 |
| Fuel Flow Climbout (kg/s) |
0.714 |
0.792 |
| Fuel Flow Approach (kg/s) |
0.26 |
0.29 |
| Fuel Flow Idle (kg/s) |
0.097 |
0.114 |
| Fuel LTO (kg) |
344 |
392 |
| Fuel Venting Compliant |
No |
No |
| Carbon Monoxide LTO (g) |
4566 |
6517 |
| Compressor Description |
1 fan, 3-stage LP, 9-stage HP |
|
| Emissions Data Status |
C |
R |
| Engine Status |
Out of production |
Out of production |
| Turbine Description |
1-stage HP, 4-stage LP |
|