Maximum Takeoff Thrust
119.15 kN
Overall Pressure Ratio
39.0582
Fuel Flow Take Off
0.9521 kg/s
NOx Unitaryto CAEP8
69.8425 % of limit
Architecture
| Fan |
Fan Stages
—
|
Fan Blades
18 |
Fan Technology
—
|
Fan Pressure Ratio
—
|
| Gearbox |
Geared Fan
No |
Gear
—
|
Reduction Ratio
—
|
| LP compressor |
Low-Pressure Compressor Stages
3 |
Low-Pressure Compressor Technology
—
|
BP Compressor Pressure Ratio
—
|
| IP compressor |
Intermediary-Pressure Compressor Stages
—
|
Intermediary-Pressure Compressor Technology
—
|
IP Compressor Pressure Ratio
—
|
| HP compressor |
High-Pressure Compressor Stages
10 |
High-Pressure Compressor Technology
—
|
HP Compressor Pressure Ratio
—
|
| Combustor |
Combustion Chamber
TAPS II |
| HP turbine |
High Pressure Compressor Stages
2 |
High-Pressure Turbine Technology
—
|
| IP turbine |
Intermediary-Pressure Turbine Stages
—
|
Intermediary-Pressure Turbine Technology
—
|
| LP turbine |
Low-Pressure Turbine Stages
5 |
Low-Pressure Turbine Technology
—
|
| Whole engine |
Streams
2 |
Bypass Ratio
8.3584 |
Overall Pressure Ratio
39.0582 |
Afterburner
No |
Pictures
No pictures yet for this family.
LEAP-1B
| Name |
Maximum Takeoff Thrust (kN) |
Bypass Ratio |
Overall Pressure Ratio |
Fuel Flow Take Off (kg/s) |
NOx LTO (g) |
NOx Unitaryto CAEP8 (% of limit) |
Smoke Max (SN) |
EASA ID |
|
LEAP-1B21
|
111.3 |
8.5 |
36.8 |
0.877 |
4053 |
66.2 |
1.16 |
20CM094 |
|
LEAP-1B23
|
115.2 |
8.5 |
37.9 |
0.916 |
4573 |
69.7 |
1.16 |
20CM095 |
|
LEAP-1B25
|
119.2 |
8.4 |
40.135 |
0.96 |
5417 |
74.9 |
1.16 |
20CM096 |
|
LEAP-1B27
|
124.7 |
8.3 |
40.5 |
1.014 |
6326 |
82.7 |
1.16 |
20CM098 |
|
LEAP-1B28B2C
|
124.7 |
8.3 |
40.5 |
1.014 |
6326 |
82.7 |
1.16 |
20CM099 |
|
LEAP-1B28BBJ2
|
124.7 |
8.3 |
40.5 |
1.014 |
6326 |
82.7 |
1.16 |
20CM097 |
|
LEAP-1B28
|
130.4 |
8.6 |
41.5 |
1.061 |
7534 |
91.6 |
1.16 |
18CM084 |
|
LEAP-1B28/28B2/28B1/28B3
|
130.4 |
8.3 |
42 |
1.075 |
7837 |
94 |
1.16 |
20CM101 |
|
LEAP-1B28B2
|
130.4 |
8.6 |
41.5 |
1.061 |
7534 |
91.6 |
1.16 |
18CM085 |
|
LEAP-1B28BBJ1
|
130.4 |
8.3 |
42 |
1.075 |
7837 |
94 |
1.16 |
20CM100 |
|
LEAP-1B28/28B1/28B2/28B3
|
130.4085 |
8.2397 |
42.0298 |
1.07 |
8343.335 |
91.3548 |
2.1594 |
08P28CM143 |
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All data (98 fields)
- Name
- LEAP-1B25
- Family
- LEAP-1B
- EASA ID
- 08P28CM146
- Aircraft Engine Manufacturer
- CFM International
- Aircraft Engine Type
- Turbofan
- Comment
- Boeing 737 MAX
- Dry Weight (kg)
- 2780
- Diameter (mm)
- 1763
- Max Rotating Diameter (mm)
- 1763
- Length (mm)
- 3147
- Height (mm)
- 2256
- Width (mm)
- 2421
- Wikipedia Article (URL)
- en.wikipedia.org/wiki/CFM_International_LEAP
- Fuel
- JET A
- Fan Blades
- 18
- Geared Fan
- No
- Low-Pressure Compressor Stages
- 3
- High-Pressure Compressor Stages
- 10
- Combustion Chamber
- TAPS II
- High Pressure Compressor Stages
- 2
- Low-Pressure Turbine Stages
- 5
- Afterburner
- No
- Streams
- 2
- Bypass Ratio
- 8.3584
- Overall Pressure Ratio
- 39.0582
- Maximum Takeoff Thrust (kN)
- 119.15
- Hydrocarbon Take Off (g/kg fuel)
- 0.0275
- Hydrocarbon Climb Out (g/kg fuel)
- 0.0146
- Hydrocarbon Approach (g/kg fuel)
- 0.0298
- Hydrocarbon Idle (g/kg fuel)
- 0.4483
- Hydrocarbon Unitary Average (g/kN)
- 0.6012
- Hydrocarbon Unitary Sigma (g/kN)
- 0.1104
- Hydrocarbon Unitary Range (g/kN)
- 0.48-0.79
- Hydrocarbon Unitary Characteristic (g/kN)
- 0.7013
- Hydrocarbon Unitary Characteristicto Regulatory (% of limit)
- 3.5781
- Hydrocarbon LTO (g)
- 71.6287
- Carbon Monoxide Take Off (g/kg fuel)
- 0.1655
- Carbon Monoxide Climb Out (g/kg fuel)
- 0.1379
- Carbon Monoxide Approach (g/kg fuel)
- 1.3444
- Carbon Monoxide Idle (g/kg fuel)
- 15.0106
- Carbon Monoxide Unitary Average (g/kN)
- 19.755
- Carbon Monoxide Unitary SD (g/kN)
- 0.7425
- Carbon Monoxide Unitary Range (g/kN)
- 18.94-21.02
- Carbon Monoxide Unitary Characteristic (g/kN)
- 21.366
- Carbon Monoxide Unitary Characteristicto Regulatory (% of limit)
- 18.1068
- NOx Take Off (g/kg fuel)
- 48.2173
- NOx Climb Out (g/kg fuel)
- 19.9921
- NOx Approach (g/kg fuel)
- 10.3454
- NOx Idle (g/kg fuel)
- 4.7604
- NOx Unitary Average (g/kN)
- 44.994
- NOx Unitary SD (g/kN)
- 3.5445
- NOx Unitary Range (g/kN)
- 39.8-49.11
- NOx Unitary Characteristic (g/kN)
- 47.658
- NOx Unitaryto Standard (% of limit)
- 40.3483
- NOx Unitaryto CAEP2 (% of limit)
- 50.4354
- NOx Unitaryto CAEP4 (% of limit)
- 55.9916
- NOx Unitaryto CAEP6 (% of limit)
- 61.8321
- NOx Unitaryto CAEP8 (% of limit)
- 69.8425
- NOx LTO (g)
- 5361.032
- Smoke Take Off (SN)
- 0.5915
- Smoke Climb Out (SN)
- 0.538
- Smoke Approach (SN)
- 0.7762
- Smoke Idle (SN)
- 0.5865
- Smoke Max (SN)
- 2.1594
- Smoke Sigma (SN)
- 1.3952
- Smoke Range (SN)
- 0.32-3.81
- Smoke Characteristic (SN)
- 2.3754
- Smoke Characteristicto Regulatory (% of limit)
- 10.5287
- Fuel Flow Take Off (kg/s)
- 0.9521
- Fuel Flow Climbout (kg/s)
- 0.7802
- Fuel Flow Approach (kg/s)
- 0.2664
- Fuel Flow Idle (kg/s)
- 0.096
- Fuel LTO (kg)
- 356.6018
- Fuel Venting Compliant
- Yes
- Carbon Monoxide LTO (g)
- 2353.81
- Compressor Description
- 1 fan, 3-stage LP, 10-stage HP
- Emissions Data Status
- C
- NOx Compliance Demonstration
- 2.3.2 e)
- nvPME Imass Approach (mg/kg)
- 1.7089
- nvPME Imass Climb Out (mg/kg)
- 0.0941
- nvPME Imass Idle (mg/kg)
- 0.6964
- nvPME Imass Max (mg/kg)
- 19.572
- nvPME Imass Take Off (mg/kg)
- 0.0928
- nvPME Inum Approach (#/kg)
- 77595560000000
- nvPME Inum Climb Out (#/kg)
- 13866180000
- nvPME Inum Idle (#/kg)
- 63000300000000
- nvPME Inum Max (#/kg)
- 379726600000000
- nvPME Inum Take Off (#/kg)
- 11912060000
- nvPMLTO Mass (mg)
- 226.9019
- nvPMLTO Mass Per Thrust (mg/kN)
- 2.15
- nvPMLTO Mass To CAEP11 (% of limit)
- 0.5031
- nvPMLTO Number (#)
- 14393310000000000
- nvPMLTO Number Per Thrust (#/kN)
- 136382900000000
- nvPMLTO Number To CAEP11 (% of limit)
- 2.5863
- nvPM Mass Concentration Characteristic (mg/m³)
- 448.2236
- nvPM Mass Concentration Max (mg/m³)
- 407.4801
- nvPM Mass Concentration To CAEP10 (% of limit)
- 7.3938
- Turbine Description
- 2-stage HP, 5-stage LP