| Family |
|
CFM56-7B |
| EASA ID |
1CM008 |
8CM064 |
| Aircraft Engine Manufacturer |
CFM International |
CFM International |
| 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 |
| Fan Blades |
|
24 |
| Geared Fan |
No |
No |
| Low-Pressure Compressor Stages |
|
3 |
| High-Pressure Compressor Stages |
|
9 |
| Combustion Chamber |
|
Tech Insertion |
| High Pressure Compressor Stages |
|
1 |
| Low-Pressure Turbine Stages |
|
4 |
| Afterburner |
No |
No |
| Streams |
2 |
2 |
| Bypass Ratio |
6 |
5.3 |
| Overall Pressure Ratio |
26.6 |
25.6 |
| Maximum Takeoff Thrust (kN) |
111.2 |
107.6 |
| Hydrocarbon Take Off (g/kg fuel) |
0.23 |
0.02 |
| Hydrocarbon Climb Out (g/kg fuel) |
0.23 |
0.03 |
| Hydrocarbon Approach (g/kg fuel) |
0.4 |
0.06 |
| Hydrocarbon Idle (g/kg fuel) |
1.4 |
2.3 |
| Hydrocarbon Unitary Average (g/kN) |
2.6 |
3.51 |
| Hydrocarbon Unitary Sigma (g/kN) |
0.5 |
0.45 |
| Hydrocarbon Unitary Range (g/kN) |
2.3-3.2 |
3.01-3.88 |
| Hydrocarbon Unitary Characteristic (g/kN) |
4 |
4.09 |
| Hydrocarbon Unitary Characteristicto Regulatory (% of limit) |
20.4 |
20.9 |
| Hydrocarbon LTO (g) |
285 |
377 |
| Carbon Monoxide Take Off (g/kg fuel) |
0.9 |
0.18 |
| Carbon Monoxide Climb Out (g/kg fuel) |
0.9 |
0.15 |
| Carbon Monoxide Approach (g/kg fuel) |
2.5 |
3.68 |
| Carbon Monoxide Idle (g/kg fuel) |
17.6 |
34.71 |
| Carbon Monoxide Unitary Average (g/kN) |
27.9 |
54.38 |
| Carbon Monoxide Unitary SD (g/kN) |
0.7 |
2.8 |
| Carbon Monoxide Unitary Range (g/kN) |
27-28.4 |
51.2-56.4 |
| Carbon Monoxide Unitary Characteristic (g/kN) |
34.2 |
58.8 |
| Carbon Monoxide Unitary Characteristicto Regulatory (% of limit) |
29 |
49.8 |
| NOx Take Off (g/kg fuel) |
24.6 |
18.93 |
| NOx Climb Out (g/kg fuel) |
19.6 |
15.6 |
| NOx Approach (g/kg fuel) |
8 |
8.6 |
| NOx Idle (g/kg fuel) |
4 |
4.09 |
| NOx Unitary Average (g/kN) |
40.5 |
37.11 |
| NOx Unitary SD (g/kN) |
0.6 |
1.2 |
| NOx Unitary Range (g/kN) |
39.9-40.9 |
36.1-38.5 |
| NOx Unitary Characteristic (g/kN) |
46.9 |
39.3 |
| NOx Unitaryto Standard (% of limit) |
50.4 |
43.1 |
| NOx Unitaryto CAEP2 (% of limit) |
63 |
53.9 |
| NOx Unitaryto CAEP4 (% of limit) |
76.3 |
65.5 |
| NOx Unitaryto CAEP6 (% of limit) |
86.7 |
74.5 |
| NOx Unitaryto CAEP8 (% of limit) |
103.5 |
89.5 |
| NOx LTO (g) |
4506 |
3995 |
| Smoke Take Off (SN) |
15.8 |
12.1 |
| Smoke Climb Out (SN) |
14 |
8.7 |
| Smoke Approach (SN) |
4.4 |
2.1 |
| Smoke Idle (SN) |
2.3 |
2.1 |
| Smoke Max (SN) |
15.8 |
12.07 |
| Smoke Sigma (SN) |
2 |
3.4 |
| Smoke Range (SN) |
13.5-17.3 |
8.3-14.7 |
| Smoke Characteristic (SN) |
20.3 |
13.28 |
| Smoke Characteristicto Regulatory (% of limit) |
88.5 |
57.2 |
| Fuel Flow Take Off (kg/s) |
1.051 |
1.086 |
| Fuel Flow Climbout (kg/s) |
0.862 |
0.895 |
| Fuel Flow Approach (kg/s) |
0.291 |
0.308 |
| Fuel Flow Idle (kg/s) |
0.1011 |
0.103 |
| Fuel LTO (kg) |
385 |
398 |
| Fuel Venting Compliant |
No |
Yes |
| Carbon Monoxide LTO (g) |
3093 |
5854 |
| Compressor Description |
|
1 fan, 3-stage LP, 9-stage HP |
| Emissions Data Status |
R |
C |
| Engine Status |
Out of production |
Out of production |
| NOx Compliance Demonstration |
|
2.3.2 e) |
| Turbine Description |
|
1-stage HP, 4-stage LP |