| Family |
CFM56-7B |
|
| EASA ID |
3CM032 |
10IA012 |
| 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 |
|
Floatwall |
| High Pressure Compressor Stages |
1 |
|
| Low-Pressure Turbine Stages |
4 |
|
| Afterburner |
No |
No |
| Streams |
2 |
2 |
| Bypass Ratio |
5.2 |
4.8 |
| Overall Pressure Ratio |
25.78 |
27 |
| Maximum Takeoff Thrust (kN) |
107.65 |
108.9 |
| Hydrocarbon Take Off (g/kg fuel) |
0.1 |
0.03 |
| Hydrocarbon Climb Out (g/kg fuel) |
0.1 |
0.04 |
| Hydrocarbon Approach (g/kg fuel) |
0.1 |
0.07 |
| Hydrocarbon Idle (g/kg fuel) |
2.4 |
0.14 |
| Hydrocarbon Unitary Average (g/kN) |
3.91 |
0.4 |
| Hydrocarbon Unitary Characteristic (g/kN) |
6 |
0.5 |
| Hydrocarbon Unitary Characteristicto Regulatory (% of limit) |
30.6 |
2.4 |
| Hydrocarbon LTO (g) |
432 |
39 |
| Carbon Monoxide Take Off (g/kg fuel) |
0.4 |
0.42 |
| Carbon Monoxide Climb Out (g/kg fuel) |
0.6 |
0.44 |
| Carbon Monoxide Approach (g/kg fuel) |
2.2 |
2.28 |
| Carbon Monoxide Idle (g/kg fuel) |
22 |
12.03 |
| Carbon Monoxide Unitary Average (g/kN) |
37.11 |
25.2 |
| Carbon Monoxide Unitary Characteristic (g/kN) |
45.6 |
28.7 |
| Carbon Monoxide Unitary Characteristicto Regulatory (% of limit) |
38.6 |
24.4 |
| NOx Take Off (g/kg fuel) |
25.3 |
22.96 |
| NOx Climb Out (g/kg fuel) |
20.5 |
19.25 |
| NOx Approach (g/kg fuel) |
10.1 |
9.69 |
| NOx Idle (g/kg fuel) |
4.4 |
5.18 |
| NOx Unitary Average (g/kN) |
47.83 |
46.3 |
| NOx Unitary Characteristic (g/kN) |
55.4 |
50.9 |
| NOx Unitaryto Standard (% of limit) |
60.5 |
54.2 |
| NOx Unitaryto CAEP2 (% of limit) |
75.6 |
67.7 |
| NOx Unitaryto CAEP4 (% of limit) |
92 |
81.8 |
| NOx Unitaryto CAEP6 (% of limit) |
104.5 |
93 |
| NOx Unitaryto CAEP8 (% of limit) |
125.4 |
110.9 |
| NOx LTO (g) |
5149 |
5039 |
| Smoke Take Off (SN) |
12.6 |
7 |
| Smoke Climb Out (SN) |
11.4 |
7.8 |
| Smoke Approach (SN) |
0 |
3.7 |
| Smoke Idle (SN) |
0 |
1.7 |
| Smoke Max (SN) |
12.6 |
9.4 |
| Smoke Characteristic (SN) |
16.2 |
11.1 |
| Smoke Characteristicto Regulatory (% of limit) |
69.8 |
47.8 |
| Fuel Flow Take Off (kg/s) |
1.103 |
1.04 |
| Fuel Flow Climbout (kg/s) |
0.91 |
0.867 |
| Fuel Flow Approach (kg/s) |
0.316 |
0.326 |
| Fuel Flow Idle (kg/s) |
0.109 |
0.133 |
| Fuel LTO (kg) |
412 |
444 |
| Fuel Venting Compliant |
No |
Yes |
| Carbon Monoxide LTO (g) |
3998 |
2747 |
| Compressor Description |
1 fan, 3-stage LP, 9-stage HP |
|
| Emissions Data Status |
C |
C |
| Emissions Data Superseded |
|
Yes |
| Emissions Superseded By |
|
01P10IA020 |
| Engine Status |
Out of production |
Out of production |
| NOx Compliance Demonstration |
|
2.3.2 d) |
| Turbine Description |
1-stage HP, 4-stage LP |
|