| Family |
CFM56-7B |
|
| EASA ID |
8CM066 |
1IA002 |
| Aircraft Engine Manufacturer |
CFM International |
International Aero 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 |
| 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 |
5.1 |
4.82 |
| Overall Pressure Ratio |
29 |
27.2 |
| Maximum Takeoff Thrust (kN) |
121.4 |
111.2 |
| Hydrocarbon Take Off (g/kg fuel) |
0.03 |
0.041 |
| Hydrocarbon Climb Out (g/kg fuel) |
0.02 |
0.041 |
| Hydrocarbon Approach (g/kg fuel) |
0.05 |
0.061 |
| Hydrocarbon Idle (g/kg fuel) |
1.54 |
0.105 |
| Hydrocarbon Unitary Average (g/kN) |
2.25 |
0.29 |
| Hydrocarbon Unitary Sigma (g/kN) |
0.35 |
|
| Hydrocarbon Unitary Range (g/kN) |
1.88-2.56 |
|
| Hydrocarbon Unitary Characteristic (g/kN) |
2.62 |
0.4 |
| Hydrocarbon Unitary Characteristicto Regulatory (% of limit) |
13.4 |
2.3 |
| Hydrocarbon LTO (g) |
273 |
32 |
| Carbon Monoxide Take Off (g/kg fuel) |
0.31 |
0.53 |
| Carbon Monoxide Climb Out (g/kg fuel) |
0.17 |
0.62 |
| Carbon Monoxide Approach (g/kg fuel) |
2.82 |
2.44 |
| Carbon Monoxide Idle (g/kg fuel) |
29.39 |
12.43 |
| Carbon Monoxide Unitary Average (g/kN) |
43.8 |
24.9 |
| Carbon Monoxide Unitary SD (g/kN) |
2.5 |
|
| Carbon Monoxide Unitary Range (g/kN) |
41-45.6 |
|
| Carbon Monoxide Unitary Characteristic (g/kN) |
47.4 |
30.6 |
| Carbon Monoxide Unitary Characteristicto Regulatory (% of limit) |
40.2 |
25.9 |
| NOx Take Off (g/kg fuel) |
23.94 |
26.5 |
| NOx Climb Out (g/kg fuel) |
17.89 |
22.3 |
| NOx Approach (g/kg fuel) |
9.09 |
8.9 |
| NOx Idle (g/kg fuel) |
4.36 |
4.7 |
| NOx Unitary Average (g/kN) |
43.09 |
48.5 |
| NOx Unitary SD (g/kN) |
1.1 |
|
| NOx Unitary Range (g/kN) |
42.4-44.4 |
|
| NOx Unitary Characteristic (g/kN) |
45.6 |
56.2 |
| NOx Unitaryto Standard (% of limit) |
46.5 |
59.6 |
| NOx Unitaryto CAEP2 (% of limit) |
58.2 |
74.4 |
| NOx Unitaryto CAEP4 (% of limit) |
69.7 |
89.9 |
| NOx Unitaryto CAEP6 (% of limit) |
79.2 |
102.2 |
| NOx Unitaryto CAEP8 (% of limit) |
93.6 |
121.7 |
| NOx LTO (g) |
5232 |
5382 |
| Smoke Take Off (SN) |
13.4 |
5.2 |
| Smoke Climb Out (SN) |
11.2 |
7.2 |
| Smoke Approach (SN) |
2.1 |
4.2 |
| Smoke Idle (SN) |
2.1 |
2.6 |
| Smoke Max (SN) |
13.38 |
9 |
| Smoke Sigma (SN) |
4.5 |
|
| Smoke Range (SN) |
8.4-16.9 |
|
| Smoke Characteristic (SN) |
14.72 |
11.6 |
| Smoke Characteristicto Regulatory (% of limit) |
65.6 |
50.4 |
| Fuel Flow Take Off (kg/s) |
1.293 |
1.053 |
| Fuel Flow Climbout (kg/s) |
1.031 |
0.88 |
| Fuel Flow Approach (kg/s) |
0.343 |
0.319 |
| Fuel Flow Idle (kg/s) |
0.11 |
0.128 |
| Fuel LTO (kg) |
444 |
437 |
| Fuel Venting Compliant |
Yes |
No |
| Carbon Monoxide LTO (g) |
5320 |
2764 |
| 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 |
|