| Family |
CFM56-7B |
|
| EASA ID |
3CM029 |
11GE141 |
| Aircraft Engine Manufacturer |
CFM International |
GE Aircraft Engines |
| Aircraft Engine Type |
Turbofan |
Turbofan |
| Comment |
Boeing 737 Next Generation |
|
| Dry Weight (kg) |
2366 |
|
| Diameter (mm) |
1549 |
|
| Max Rotating Diameter (mm) |
1549 |
|
| Length (mm) |
2507 |
|
| Wikipedia Article (URL) |
en.wikipedia.org/wiki/CFM_International_CFM56 |
|
| Fuel |
Jet A |
Jet A-1 |
| Fan Blades |
24 |
|
| Geared Fan |
No |
No |
| Low-Pressure Compressor Stages |
3 |
|
| High-Pressure Compressor Stages |
9 |
|
| Combustion Chamber |
|
2253M21 |
| High Pressure Compressor Stages |
1 |
|
| Low-Pressure Turbine Stages |
4 |
|
| Afterburner |
No |
No |
| Streams |
2 |
2 |
| Bypass Ratio |
5.5 |
5.4 |
| Overall Pressure Ratio |
21.59 |
26.5 |
| Maximum Takeoff Thrust (kN) |
86.74 |
82.1 |
| Hydrocarbon Take Off (g/kg fuel) |
0.1 |
0.05 |
| Hydrocarbon Climb Out (g/kg fuel) |
0.1 |
0.08 |
| Hydrocarbon Approach (g/kg fuel) |
0.1 |
0.13 |
| Hydrocarbon Idle (g/kg fuel) |
3.5 |
5.67 |
| Hydrocarbon Unitary Average (g/kN) |
6.32 |
9.5 |
| Hydrocarbon Unitary Sigma (g/kN) |
|
0.55 |
| Hydrocarbon Unitary Range (g/kN) |
|
8.8-9.8 |
| Hydrocarbon Unitary Characteristic (g/kN) |
9.7 |
14.6 |
| Hydrocarbon Unitary Characteristicto Regulatory (% of limit) |
49.5 |
74.5 |
| Hydrocarbon LTO (g) |
549 |
776 |
| Carbon Monoxide Take Off (g/kg fuel) |
0.6 |
0.66 |
| Carbon Monoxide Climb Out (g/kg fuel) |
0.4 |
0.36 |
| Carbon Monoxide Approach (g/kg fuel) |
3.6 |
3.43 |
| Carbon Monoxide Idle (g/kg fuel) |
28.3 |
47.29 |
| Carbon Monoxide Unitary Average (g/kN) |
52.45 |
80.2 |
| Carbon Monoxide Unitary SD (g/kN) |
|
1.8 |
| Carbon Monoxide Unitary Range (g/kN) |
|
78.8-82.3 |
| Carbon Monoxide Unitary Characteristic (g/kN) |
64.4 |
98.5 |
| Carbon Monoxide Unitary Characteristicto Regulatory (% of limit) |
54.6 |
83.5 |
| NOx Take Off (g/kg fuel) |
19.2 |
19.47 |
| NOx Climb Out (g/kg fuel) |
16.6 |
16.72 |
| NOx Approach (g/kg fuel) |
9.1 |
8.26 |
| NOx Idle (g/kg fuel) |
4.3 |
3.58 |
| NOx Unitary Average (g/kN) |
39.99 |
37.4 |
| NOx Unitary SD (g/kN) |
|
0.43 |
| NOx Unitary Range (g/kN) |
|
36.9-37.7 |
| NOx Unitary Characteristic (g/kN) |
46.4 |
43.3 |
| NOx Unitaryto Standard (% of limit) |
55.8 |
46.6 |
| NOx Unitaryto CAEP2 (% of limit) |
69.7 |
58.2 |
| NOx Unitaryto CAEP4 (% of limit) |
85.8 |
68.9 |
| NOx Unitaryto CAEP6 (% of limit) |
97 |
78 |
| NOx Unitaryto CAEP8 (% of limit) |
118.4 |
90.2 |
| NOx LTO (g) |
3472 |
3070 |
| Smoke Take Off (SN) |
10.7 |
14.73 |
| Smoke Climb Out (SN) |
6.4 |
7.01 |
| Smoke Approach (SN) |
0 |
0.12 |
| Smoke Idle (SN) |
0 |
0.35 |
| Smoke Max (SN) |
10.7 |
14.7 |
| Smoke Sigma (SN) |
|
0.29 |
| Smoke Range (SN) |
|
14.5-15.1 |
| Smoke Characteristic (SN) |
13.8 |
19 |
| Smoke Characteristicto Regulatory (% of limit) |
56.1 |
76.1 |
| Fuel Flow Take Off (kg/s) |
0.854 |
0.826 |
| Fuel Flow Climbout (kg/s) |
0.714 |
0.684 |
| Fuel Flow Approach (kg/s) |
0.26 |
0.232 |
| Fuel Flow Idle (kg/s) |
0.097 |
0.086 |
| Fuel LTO (kg) |
344 |
315 |
| Fuel Venting Compliant |
No |
Yes |
| Carbon Monoxide LTO (g) |
4566 |
6589 |
| Compressor Description |
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 |
|