| Family |
CFM56-7B |
|
| EASA ID |
8CM061 |
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 |
Tech Insertion |
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 |
21.4 |
26.5 |
| Maximum Takeoff Thrust (kN) |
86.7 |
82.1 |
| Hydrocarbon Take Off (g/kg fuel) |
0.03 |
0.05 |
| Hydrocarbon Climb Out (g/kg fuel) |
0.03 |
0.08 |
| Hydrocarbon Approach (g/kg fuel) |
0.08 |
0.13 |
| Hydrocarbon Idle (g/kg fuel) |
4.51 |
5.67 |
| Hydrocarbon Unitary Average (g/kN) |
7.56 |
9.5 |
| Hydrocarbon Unitary Sigma (g/kN) |
0.72 |
0.55 |
| Hydrocarbon Unitary Range (g/kN) |
6.74-7.99 |
8.8-9.8 |
| Hydrocarbon Unitary Characteristic (g/kN) |
8.82 |
14.6 |
| Hydrocarbon Unitary Characteristicto Regulatory (% of limit) |
45 |
74.5 |
| Hydrocarbon LTO (g) |
656 |
776 |
| Carbon Monoxide Take Off (g/kg fuel) |
0.17 |
0.66 |
| Carbon Monoxide Climb Out (g/kg fuel) |
0.28 |
0.36 |
| Carbon Monoxide Approach (g/kg fuel) |
5.54 |
3.43 |
| Carbon Monoxide Idle (g/kg fuel) |
46.64 |
47.29 |
| Carbon Monoxide Unitary Average (g/kN) |
81.34 |
80.2 |
| Carbon Monoxide Unitary SD (g/kN) |
3.3 |
1.8 |
| Carbon Monoxide Unitary Range (g/kN) |
77.6-83.5 |
78.8-82.3 |
| Carbon Monoxide Unitary Characteristic (g/kN) |
88 |
98.5 |
| Carbon Monoxide Unitary Characteristicto Regulatory (% of limit) |
74.6 |
83.5 |
| NOx Take Off (g/kg fuel) |
14.81 |
19.47 |
| NOx Climb Out (g/kg fuel) |
13 |
16.72 |
| NOx Approach (g/kg fuel) |
7.78 |
8.26 |
| NOx Idle (g/kg fuel) |
3.65 |
3.58 |
| NOx Unitary Average (g/kN) |
31.46 |
37.4 |
| NOx Unitary SD (g/kN) |
1.1 |
0.43 |
| NOx Unitary Range (g/kN) |
30.4-32.5 |
36.9-37.7 |
| NOx Unitary Characteristic (g/kN) |
33.3 |
43.3 |
| NOx Unitaryto Standard (% of limit) |
40.2 |
46.6 |
| NOx Unitaryto CAEP2 (% of limit) |
50.3 |
58.2 |
| NOx Unitaryto CAEP4 (% of limit) |
62 |
68.9 |
| NOx Unitaryto CAEP6 (% of limit) |
70 |
78 |
| NOx Unitaryto CAEP8 (% of limit) |
85.5 |
90.2 |
| NOx LTO (g) |
2729 |
3070 |
| Smoke Take Off (SN) |
8 |
14.73 |
| Smoke Climb Out (SN) |
6.6 |
7.01 |
| Smoke Approach (SN) |
2.1 |
0.12 |
| Smoke Idle (SN) |
2.1 |
0.35 |
| Smoke Max (SN) |
8.04 |
14.7 |
| Smoke Sigma (SN) |
1.4 |
0.29 |
| Smoke Range (SN) |
6.8-9.6 |
14.5-15.1 |
| Smoke Characteristic (SN) |
8.84 |
19 |
| Smoke Characteristicto Regulatory (% of limit) |
35.9 |
76.1 |
| Fuel Flow Take Off (kg/s) |
0.842 |
0.826 |
| Fuel Flow Climbout (kg/s) |
0.702 |
0.684 |
| Fuel Flow Approach (kg/s) |
0.256 |
0.232 |
| Fuel Flow Idle (kg/s) |
0.092 |
0.086 |
| Fuel LTO (kg) |
333 |
315 |
| Fuel Venting Compliant |
Yes |
Yes |
| Carbon Monoxide LTO (g) |
7055 |
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) |
2.3.2 e) |
| Turbine Description |
1-stage HP, 4-stage LP |
|