| Family |
CFM56-7B |
CFM56-3 |
| EASA ID |
8CM064 |
1CM007 |
| Aircraft Engine Manufacturer |
CFM International |
CFM International |
| Aircraft Engine Type |
Turbofan |
Turbofan |
| Comment |
Boeing 737 Next Generation |
Boeing 737 Classic |
| Dry Weight (kg) |
2366 |
1951 |
| Diameter (mm) |
1549 |
1524 |
| Max Rotating Diameter (mm) |
1549 |
1524 |
| Length (mm) |
2507 |
|
| Wikipedia Article (URL) |
en.wikipedia.org/wiki/CFM_International_CFM56 |
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 |
5.1 |
| Overall Pressure Ratio |
25.6 |
25.5 |
| Maximum Takeoff Thrust (kN) |
107.6 |
104.6 |
| Hydrocarbon Take Off (g/kg fuel) |
0.02 |
0.03 |
| Hydrocarbon Climb Out (g/kg fuel) |
0.03 |
0.04 |
| Hydrocarbon Approach (g/kg fuel) |
0.06 |
0.07 |
| Hydrocarbon Idle (g/kg fuel) |
2.3 |
1.42 |
| Hydrocarbon Unitary Average (g/kN) |
3.51 |
2.76 |
| Hydrocarbon Unitary Sigma (g/kN) |
0.45 |
0.38 |
| Hydrocarbon Unitary Range (g/kN) |
3.01-3.88 |
2.33-3.06 |
| Hydrocarbon Unitary Characteristic (g/kN) |
4.09 |
4.3 |
| Hydrocarbon Unitary Characteristicto Regulatory (% of limit) |
20.9 |
21.7 |
| Hydrocarbon LTO (g) |
377 |
287 |
| Carbon Monoxide Take Off (g/kg fuel) |
0.18 |
0.9 |
| Carbon Monoxide Climb Out (g/kg fuel) |
0.15 |
0.9 |
| Carbon Monoxide Approach (g/kg fuel) |
3.68 |
3.1 |
| Carbon Monoxide Idle (g/kg fuel) |
34.71 |
26.8 |
| Carbon Monoxide Unitary Average (g/kN) |
54.38 |
53.5 |
| Carbon Monoxide Unitary SD (g/kN) |
2.8 |
2.85 |
| Carbon Monoxide Unitary Range (g/kN) |
51.2-56.4 |
51.2-56.7 |
| Carbon Monoxide Unitary Characteristic (g/kN) |
58.8 |
65.7 |
| Carbon Monoxide Unitary Characteristicto Regulatory (% of limit) |
49.8 |
55.7 |
| NOx Take Off (g/kg fuel) |
18.93 |
20.7 |
| NOx Climb Out (g/kg fuel) |
15.6 |
17.8 |
| NOx Approach (g/kg fuel) |
8.6 |
9.1 |
| NOx Idle (g/kg fuel) |
4.09 |
4.3 |
| NOx Unitary Average (g/kN) |
37.11 |
45.8 |
| NOx Unitary SD (g/kN) |
1.2 |
0.82 |
| NOx Unitary Range (g/kN) |
36.1-38.5 |
45.3-46.8 |
| NOx Unitary Characteristic (g/kN) |
39.3 |
53.1 |
| NOx Unitaryto Standard (% of limit) |
43.1 |
58.3 |
| NOx Unitaryto CAEP2 (% of limit) |
53.9 |
72.9 |
| NOx Unitaryto CAEP4 (% of limit) |
65.5 |
88.8 |
| NOx Unitaryto CAEP6 (% of limit) |
74.5 |
100.9 |
| NOx Unitaryto CAEP8 (% of limit) |
89.5 |
121.3 |
| NOx LTO (g) |
3995 |
4810 |
| Smoke Take Off (SN) |
12.1 |
7.7 |
| Smoke Climb Out (SN) |
8.7 |
3.9 |
| Smoke Approach (SN) |
2.1 |
2.5 |
| Smoke Idle (SN) |
2.1 |
2.3 |
| Smoke Max (SN) |
12.07 |
7.7 |
| Smoke Sigma (SN) |
3.4 |
0.76 |
| Smoke Range (SN) |
8.3-14.7 |
6.8-8.3 |
| Smoke Characteristic (SN) |
13.28 |
9.9 |
| Smoke Characteristicto Regulatory (% of limit) |
57.2 |
42.4 |
| Fuel Flow Take Off (kg/s) |
1.086 |
1.154 |
| Fuel Flow Climbout (kg/s) |
0.895 |
0.954 |
| Fuel Flow Approach (kg/s) |
0.308 |
0.336 |
| Fuel Flow Idle (kg/s) |
0.103 |
0.124 |
| Fuel LTO (kg) |
398 |
448 |
| Fuel Venting Compliant |
Yes |
No |
| Carbon Monoxide LTO (g) |
5854 |
5591 |
| Compressor Description |
1 fan, 3-stage LP, 9-stage HP |
|
| Emissions Data Status |
C |
R |
| Engine Status |
Out of production |
Out of production |
| NOx Compliance Demonstration |
2.3.2 e) |
|
| Turbine Description |
1-stage HP, 4-stage LP |
|