| Family |
CFM56-5B |
CFM56-7B |
| EASA ID |
01P08CM102 |
8CM066 |
| Aircraft Engine Manufacturer |
CFM International |
CFM International |
| Aircraft Engine Type |
Turbofan |
Turbofan |
| Comment |
Airbus A318, A319, A320, A321 |
Boeing 737 Next Generation |
| Dry Weight (kg) |
2381 |
2366 |
| Diameter (mm) |
1735 |
1549 |
| Max Rotating Diameter (mm) |
1735 |
1549 |
| Length (mm) |
2601 |
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 |
36 |
24 |
| Geared Fan |
No |
No |
| Low-Pressure Compressor Stages |
4 |
3 |
| High-Pressure Compressor Stages |
9 |
9 |
| Combustion Chamber |
Tech Insertion |
Tech Insertion |
| High Pressure Compressor Stages |
1 |
1 |
| Low-Pressure Turbine Stages |
4 |
4 |
| Afterburner |
No |
No |
| Streams |
2 |
2 |
| Bypass Ratio |
5.5 |
5.1 |
| Overall Pressure Ratio |
30.2 |
29 |
| Maximum Takeoff Thrust (kN) |
133.4 |
121.4 |
| Hydrocarbon Take Off (g/kg fuel) |
0.03 |
0.03 |
| Hydrocarbon Climb Out (g/kg fuel) |
0.02 |
0.02 |
| Hydrocarbon Approach (g/kg fuel) |
0.05 |
0.05 |
| Hydrocarbon Idle (g/kg fuel) |
1.37 |
1.54 |
| Hydrocarbon Unitary Average (g/kN) |
1.8 |
2.25 |
| Hydrocarbon Unitary Sigma (g/kN) |
0.29 |
0.35 |
| Hydrocarbon Unitary Range (g/kN) |
1.48-2.06 |
1.88-2.56 |
| Hydrocarbon Unitary Characteristic (g/kN) |
2.1 |
2.62 |
| Hydrocarbon Unitary Characteristicto Regulatory (% of limit) |
10.7 |
13.4 |
| Hydrocarbon LTO (g) |
240 |
273 |
| Carbon Monoxide Take Off (g/kg fuel) |
0.38 |
0.31 |
| Carbon Monoxide Climb Out (g/kg fuel) |
0.2 |
0.17 |
| Carbon Monoxide Approach (g/kg fuel) |
2.53 |
2.82 |
| Carbon Monoxide Idle (g/kg fuel) |
27.92 |
29.39 |
| Carbon Monoxide Unitary Average (g/kN) |
37.35 |
43.8 |
| Carbon Monoxide Unitary SD (g/kN) |
2.2 |
2.5 |
| Carbon Monoxide Unitary Range (g/kN) |
34.9-39 |
41-45.6 |
| Carbon Monoxide Unitary Characteristic (g/kN) |
40.4 |
47.4 |
| Carbon Monoxide Unitary Characteristicto Regulatory (% of limit) |
34.2 |
40.2 |
| NOx Take Off (g/kg fuel) |
26.18 |
23.94 |
| NOx Climb Out (g/kg fuel) |
19.77 |
17.89 |
| NOx Approach (g/kg fuel) |
9.28 |
9.09 |
| NOx Idle (g/kg fuel) |
4.45 |
4.36 |
| NOx Unitary Average (g/kN) |
43.08 |
43.09 |
| NOx Unitary SD (g/kN) |
0.9 |
1.1 |
| NOx Unitary Range (g/kN) |
42.5-44.1 |
42.4-44.4 |
| NOx Unitary Characteristic (g/kN) |
45.6 |
45.6 |
| NOx Unitaryto Standard (% of limit) |
45.4 |
46.5 |
| NOx Unitaryto CAEP2 (% of limit) |
56.8 |
58.2 |
| NOx Unitaryto CAEP4 (% of limit) |
67.7 |
69.7 |
| NOx Unitaryto CAEP6 (% of limit) |
76.8 |
79.2 |
| NOx Unitaryto CAEP8 (% of limit) |
90.3 |
93.6 |
| NOx LTO (g) |
5749 |
5232 |
| Smoke Take Off (SN) |
14.9 |
13.4 |
| Smoke Climb Out (SN) |
12.9 |
11.2 |
| Smoke Approach (SN) |
2.1 |
2.1 |
| Smoke Idle (SN) |
2.1 |
2.1 |
| Smoke Max (SN) |
14.9 |
13.38 |
| Smoke Sigma (SN) |
5.5 |
4.5 |
| Smoke Range (SN) |
8.6-18.3 |
8.4-16.9 |
| Smoke Characteristic (SN) |
16.4 |
14.72 |
| Smoke Characteristicto Regulatory (% of limit) |
75 |
65.6 |
| Fuel Flow Take Off (kg/s) |
1.318 |
1.293 |
| Fuel Flow Climbout (kg/s) |
1.063 |
1.031 |
| Fuel Flow Approach (kg/s) |
0.347 |
0.343 |
| Fuel Flow Idle (kg/s) |
0.109 |
0.11 |
| Fuel LTO (kg) |
448 |
444 |
| Fuel Venting Compliant |
Yes |
Yes |
| Carbon Monoxide LTO (g) |
4984 |
5320 |
| Compressor Description |
1 fan, 4-stage LP, 9-stage HP |
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) |
2.3.2 e) |
| nvPME Imass Approach (mg/kg) |
1.94 |
|
| nvPME Imass Climb Out (mg/kg) |
53.4 |
|
| nvPME Imass Idle (mg/kg) |
0.73 |
|
| nvPME Imass Max (mg/kg) |
78.7 |
|
| nvPME Imass Take Off (mg/kg) |
78.7 |
|
| nvPME Inum Approach (#/kg) |
78700000000000 |
|
| nvPME Inum Climb Out (#/kg) |
427000000000000 |
|
| nvPME Inum Idle (#/kg) |
24200000000000 |
|
| nvPME Inum Max (#/kg) |
434000000000000 |
|
| nvPME Inum Take Off (#/kg) |
384000000000000 |
|
| nvPMLTO Mass (mg) |
12132 |
|
| nvPMLTO Mass Per Thrust (mg/kN) |
126 |
|
| nvPMLTO Mass To CAEP11 (% of limit) |
38.3 |
|
| nvPMLTO Number (#) |
91800000000000000 |
|
| nvPMLTO Number Per Thrust (#/kN) |
956000000000000 |
|
| nvPMLTO Number To CAEP11 (% of limit) |
23.3 |
|
| nvPM Mass Concentration Characteristic (mg/m³) |
2644 |
|
| nvPM Mass Concentration Max (mg/m³) |
2054 |
|
| nvPM Mass Concentration To CAEP10 (% of limit) |
46.1 |
|
| Turbine Description |
1-stage HP, 4-stage LP |
1-stage HP, 4-stage LP |