| Family |
CFM56-7B |
| EASA ID |
8CM061 |
| Aircraft Engine Manufacturer |
CFM International |
| Aircraft Engine Type |
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 |
| Fan Blades |
24 |
| Geared Fan |
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 |
| Streams |
2 |
| Bypass Ratio |
5.5 |
| Overall Pressure Ratio |
21.4 |
| Maximum Takeoff Thrust (kN) |
86.7 |
| Hydrocarbon Take Off (g/kg fuel) |
0.03 |
| Hydrocarbon Climb Out (g/kg fuel) |
0.03 |
| Hydrocarbon Approach (g/kg fuel) |
0.08 |
| Hydrocarbon Idle (g/kg fuel) |
4.51 |
| Hydrocarbon Unitary Average (g/kN) |
7.56 |
| Hydrocarbon Unitary Sigma (g/kN) |
0.72 |
| Hydrocarbon Unitary Range (g/kN) |
6.74-7.99 |
| Hydrocarbon Unitary Characteristic (g/kN) |
8.82 |
| Hydrocarbon Unitary Characteristicto Regulatory (% of limit) |
45 |
| Hydrocarbon LTO (g) |
656 |
| Carbon Monoxide Take Off (g/kg fuel) |
0.17 |
| Carbon Monoxide Climb Out (g/kg fuel) |
0.28 |
| Carbon Monoxide Approach (g/kg fuel) |
5.54 |
| Carbon Monoxide Idle (g/kg fuel) |
46.64 |
| Carbon Monoxide Unitary Average (g/kN) |
81.34 |
| Carbon Monoxide Unitary SD (g/kN) |
3.3 |
| Carbon Monoxide Unitary Range (g/kN) |
77.6-83.5 |
| Carbon Monoxide Unitary Characteristic (g/kN) |
88 |
| Carbon Monoxide Unitary Characteristicto Regulatory (% of limit) |
74.6 |
| NOx Take Off (g/kg fuel) |
14.81 |
| NOx Climb Out (g/kg fuel) |
13 |
| NOx Approach (g/kg fuel) |
7.78 |
| NOx Idle (g/kg fuel) |
3.65 |
| NOx Unitary Average (g/kN) |
31.46 |
| NOx Unitary SD (g/kN) |
1.1 |
| NOx Unitary Range (g/kN) |
30.4-32.5 |
| NOx Unitary Characteristic (g/kN) |
33.3 |
| NOx Unitaryto Standard (% of limit) |
40.2 |
| NOx Unitaryto CAEP2 (% of limit) |
50.3 |
| NOx Unitaryto CAEP4 (% of limit) |
62 |
| NOx Unitaryto CAEP6 (% of limit) |
70 |
| NOx Unitaryto CAEP8 (% of limit) |
85.5 |
| NOx LTO (g) |
2729 |
| Smoke Take Off (SN) |
8 |
| Smoke Climb Out (SN) |
6.6 |
| Smoke Approach (SN) |
2.1 |
| Smoke Idle (SN) |
2.1 |
| Smoke Max (SN) |
8.04 |
| Smoke Sigma (SN) |
1.4 |
| Smoke Range (SN) |
6.8-9.6 |
| Smoke Characteristic (SN) |
8.84 |
| Smoke Characteristicto Regulatory (% of limit) |
35.9 |
| Fuel Flow Take Off (kg/s) |
0.842 |
| Fuel Flow Climbout (kg/s) |
0.702 |
| Fuel Flow Approach (kg/s) |
0.256 |
| Fuel Flow Idle (kg/s) |
0.092 |
| Fuel LTO (kg) |
333 |
| Fuel Venting Compliant |
Yes |
| Carbon Monoxide LTO (g) |
7055 |
| Compressor Description |
1 fan, 3-stage LP, 9-stage HP |
| Emissions Data Status |
C |
| Engine Status |
Out of production |
| NOx Compliance Demonstration |
2.3.2 e) |
| Turbine Description |
1-stage HP, 4-stage LP |