| Family |
CFM56-2 |
CFM56-7B |
| EASA ID |
1CM002 |
3CM031 |
| Aircraft Engine Manufacturer |
CFM International |
CFM International |
| Aircraft Engine Type |
Turbofan |
Turbofan |
| Comment |
DC-8-70, KC-135R, E-3, E-6 |
Boeing 737 Next Generation |
| Dry Weight (kg) |
2186 |
2366 |
| Diameter (mm) |
1735 |
1549 |
| Max Rotating Diameter (mm) |
1735 |
1549 |
| 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 |
| High Pressure Compressor Stages |
|
1 |
| Low-Pressure Turbine Stages |
|
4 |
| Afterburner |
No |
No |
| Streams |
2 |
2 |
| Bypass Ratio |
6 |
5.3 |
| Overall Pressure Ratio |
23.5 |
24.41 |
| Maximum Takeoff Thrust (kN) |
97.86 |
100.97 |
| Hydrocarbon Take Off (g/kg fuel) |
0.04 |
0.1 |
| Hydrocarbon Climb Out (g/kg fuel) |
0.05 |
0.1 |
| Hydrocarbon Approach (g/kg fuel) |
0.08 |
0.1 |
| Hydrocarbon Idle (g/kg fuel) |
1.83 |
2.5 |
| Hydrocarbon Unitary Average (g/kN) |
3.87 |
4.22 |
| Hydrocarbon Unitary Sigma (g/kN) |
0.41 |
|
| Hydrocarbon Unitary Range (g/kN) |
3.4-4.15 |
|
| Hydrocarbon Unitary Characteristic (g/kN) |
6 |
6.4 |
| Hydrocarbon Unitary Characteristicto Regulatory (% of limit) |
30.4 |
32.7 |
| Hydrocarbon LTO (g) |
378 |
432 |
| Carbon Monoxide Take Off (g/kg fuel) |
0.9 |
0.5 |
| Carbon Monoxide Climb Out (g/kg fuel) |
0.9 |
0.6 |
| Carbon Monoxide Approach (g/kg fuel) |
4.2 |
2.5 |
| Carbon Monoxide Idle (g/kg fuel) |
30.7 |
22.8 |
| Carbon Monoxide Unitary Average (g/kN) |
67.2 |
39.58 |
| Carbon Monoxide Unitary SD (g/kN) |
4.1 |
|
| Carbon Monoxide Unitary Range (g/kN) |
63.5-71.7 |
|
| Carbon Monoxide Unitary Characteristic (g/kN) |
82.5 |
48.6 |
| Carbon Monoxide Unitary Characteristicto Regulatory (% of limit) |
69.9 |
41.2 |
| NOx Take Off (g/kg fuel) |
18.5 |
23.1 |
| NOx Climb Out (g/kg fuel) |
16 |
19 |
| NOx Approach (g/kg fuel) |
8.2 |
10 |
| NOx Idle (g/kg fuel) |
4 |
4.5 |
| NOx Unitary Average (g/kN) |
39.9 |
45.16 |
| NOx Unitary SD (g/kN) |
0.6 |
|
| NOx Unitary Range (g/kN) |
39.4-40.5 |
|
| NOx Unitary Characteristic (g/kN) |
46.3 |
52.4 |
| NOx Unitaryto Standard (% of limit) |
53.2 |
59 |
| NOx Unitaryto CAEP2 (% of limit) |
66.5 |
73.7 |
| NOx Unitaryto CAEP4 (% of limit) |
81.7 |
90.3 |
| NOx Unitaryto CAEP6 (% of limit) |
92.9 |
102.6 |
| NOx Unitaryto CAEP8 (% of limit) |
113 |
124 |
| NOx LTO (g) |
3906 |
4560 |
| Smoke Take Off (SN) |
6 |
12 |
| Smoke Climb Out (SN) |
3 |
10.5 |
| Smoke Approach (SN) |
2.6 |
0 |
| Smoke Idle (SN) |
2.2 |
0 |
| Smoke Max (SN) |
6 |
12 |
| Smoke Sigma (SN) |
0.8 |
|
| Smoke Range (SN) |
5.4-6.9 |
|
| Smoke Characteristic (SN) |
7.7 |
15.4 |
| Smoke Characteristicto Regulatory (% of limit) |
32.4 |
65.2 |
| Fuel Flow Take Off (kg/s) |
0.985 |
1.021 |
| Fuel Flow Climbout (kg/s) |
0.819 |
0.844 |
| Fuel Flow Approach (kg/s) |
0.311 |
0.298 |
| Fuel Flow Idle (kg/s) |
0.128 |
0.105 |
| Fuel LTO (kg) |
424 |
390 |
| Fuel Venting Compliant |
No |
No |
| Carbon Monoxide LTO (g) |
6578 |
4002 |
| Compressor Description |
|
1 fan, 3-stage LP, 9-stage HP |
| Emissions Data Status |
C |
C |
| Engine Status |
Out of production |
Out of production |
| Turbine Description |
|
1-stage HP, 4-stage LP |