| Family |
|
CFM56-7B |
| EASA ID |
1IA001 |
8CM064 |
| Aircraft Engine Manufacturer |
International Aero Engines |
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 |
| FETT |
1985-12-12 |
|
| First Flight |
1988-05-07 |
|
| 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 |
5.3 |
5.3 |
| Overall Pressure Ratio |
29.8 |
25.6 |
| Maximum Takeoff Thrust (kN) |
111.2 |
107.6 |
| Hydrocarbon Take Off (g/kg fuel) |
0.1 |
0.02 |
| Hydrocarbon Climb Out (g/kg fuel) |
0.11 |
0.03 |
| Hydrocarbon Approach (g/kg fuel) |
0.15 |
0.06 |
| Hydrocarbon Idle (g/kg fuel) |
0.22 |
2.3 |
| Hydrocarbon Unitary Average (g/kN) |
0.65 |
3.51 |
| Hydrocarbon Unitary Sigma (g/kN) |
|
0.45 |
| Hydrocarbon Unitary Range (g/kN) |
|
3.01-3.88 |
| Hydrocarbon Unitary Characteristic (g/kN) |
1 |
4.09 |
| Hydrocarbon Unitary Characteristicto Regulatory (% of limit) |
5.1 |
20.9 |
| Hydrocarbon LTO (g) |
73 |
377 |
| Carbon Monoxide Take Off (g/kg fuel) |
0.55 |
0.18 |
| Carbon Monoxide Climb Out (g/kg fuel) |
0.55 |
0.15 |
| Carbon Monoxide Approach (g/kg fuel) |
0.77 |
3.68 |
| Carbon Monoxide Idle (g/kg fuel) |
7.76 |
34.71 |
| Carbon Monoxide Unitary Average (g/kN) |
14.8 |
54.38 |
| Carbon Monoxide Unitary SD (g/kN) |
|
2.8 |
| Carbon Monoxide Unitary Range (g/kN) |
|
51.2-56.4 |
| Carbon Monoxide Unitary Characteristic (g/kN) |
18.2 |
58.8 |
| Carbon Monoxide Unitary Characteristicto Regulatory (% of limit) |
15.4 |
49.8 |
| NOx Take Off (g/kg fuel) |
37.13 |
18.93 |
| NOx Climb Out (g/kg fuel) |
30.82 |
15.6 |
| NOx Approach (g/kg fuel) |
13.45 |
8.6 |
| NOx Idle (g/kg fuel) |
5.91 |
4.09 |
| NOx Unitary Average (g/kN) |
69.3 |
37.11 |
| NOx Unitary SD (g/kN) |
|
1.2 |
| NOx Unitary Range (g/kN) |
|
36.1-38.5 |
| NOx Unitary Characteristic (g/kN) |
80.3 |
39.3 |
| NOx Unitaryto Standard (% of limit) |
80.7 |
43.1 |
| NOx Unitaryto CAEP2 (% of limit) |
100.8 |
53.9 |
| NOx Unitaryto CAEP4 (% of limit) |
120.5 |
65.5 |
| NOx Unitaryto CAEP6 (% of limit) |
136.9 |
74.5 |
| NOx Unitaryto CAEP8 (% of limit) |
161.1 |
89.5 |
| NOx LTO (g) |
7716 |
3995 |
| Smoke Take Off (SN) |
|
12.1 |
| Smoke Climb Out (SN) |
|
8.7 |
| Smoke Approach (SN) |
|
2.1 |
| Smoke Idle (SN) |
|
2.1 |
| Smoke Max (SN) |
3.5 |
12.07 |
| Smoke Sigma (SN) |
|
3.4 |
| Smoke Range (SN) |
|
8.3-14.7 |
| Smoke Characteristic (SN) |
4.5 |
13.28 |
| Smoke Characteristicto Regulatory (% of limit) |
19.6 |
57.2 |
| Fuel Flow Take Off (kg/s) |
1.113 |
1.086 |
| Fuel Flow Climbout (kg/s) |
0.924 |
0.895 |
| Fuel Flow Approach (kg/s) |
0.334 |
0.308 |
| Fuel Flow Idle (kg/s) |
0.124 |
0.103 |
| Fuel LTO (kg) |
442 |
398 |
| Fuel Venting Compliant |
No |
Yes |
| Carbon Monoxide LTO (g) |
1656 |
5854 |
| 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 |