ALF 502R-5

Turbofan · Textron Lycoming

Reaction Turbines

Maximum Takeoff Thrust

31 kN

Bypass Ratio

5.6

Overall Pressure Ratio

Fuel Flow Take Off

0.3581 kg/s

NOx Unitaryto CAEP8

74.1 % of limit

Architecture

Fan	Fan Stages —	Fan Blades —	Fan Technology —	Fan Pressure Ratio —
Gearbox	Geared Fan Yes	Gear —	Reduction Ratio —
LP compressor	Low-Pressure Compressor Stages —	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 —	High-Pressure Compressor Technology —	HP Compressor Pressure Ratio —
Combustor	Combustion Chamber —
HP turbine	High Pressure Compressor Stages —	High-Pressure Turbine Technology —
IP turbine	Intermediary-Pressure Turbine Stages —	Intermediary-Pressure Turbine Technology —
LP turbine	Low-Pressure Turbine Stages —	Low-Pressure Turbine Technology —
Whole engine	Streams 2	Bypass Ratio 5.6	Overall Pressure Ratio 12	Afterburner No

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Name	Aircraft Engine Manufacturer	Maximum Takeoff Thrust (kN)	Bypass Ratio	Overall Pressure Ratio
LF507-1F, -1H	Textron Lycoming	31	5.1	13	Compare
ALF 502R-3	Textron Lycoming	29.8	5.7	11.4	Compare
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AE3007C	Rolls-Royce	29.62	5.2	15.8	Compare
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All data (53 fields)

Name: ALF 502R-5
EASA ID: 1TL003
Aircraft Engine Manufacturer: Textron Lycoming
Aircraft Engine Type: Turbofan
Geared Fan: Yes
Afterburner: No
Streams: 2
Bypass Ratio: 5.6
Overall Pressure Ratio: 12
Maximum Takeoff Thrust (kN): 31
Hydrocarbon Take Off (g/kg fuel): 0.06
Hydrocarbon Climb Out (g/kg fuel): 0.053
Hydrocarbon Approach (g/kg fuel): 0.217
Hydrocarbon Idle (g/kg fuel): 5.39
Hydrocarbon Unitary Average (g/kN): 11.7
Hydrocarbon Unitary Characteristic (g/kN): 13.6
Hydrocarbon Unitary Characteristicto Regulatory (% of limit): 69.4
Hydrocarbon LTO (g): 351
Carbon Monoxide Take Off (g/kg fuel): 0.3
Carbon Monoxide Climb Out (g/kg fuel): 0.25
Carbon Monoxide Approach (g/kg fuel): 7.1
Carbon Monoxide Idle (g/kg fuel): 40.93
Carbon Monoxide Unitary Average (g/kN): 90.4
Carbon Monoxide Unitary Characteristic (g/kN): 97.8
Carbon Monoxide Unitary Characteristicto Regulatory (% of limit): 82.9
NOx Take Off (g/kg fuel): 13.35
NOx Climb Out (g/kg fuel): 10.56
NOx Approach (g/kg fuel): 6.6
NOx Idle (g/kg fuel): 3.78
NOx Unitary Average (g/kN): 32.9
NOx Unitary Characteristic (g/kN): 34.8
NOx Unitaryto Standard (% of limit): 54.4
NOx Unitaryto CAEP2 (% of limit): 68
NOx Unitaryto CAEP4 (% of limit): 69.1
NOx Unitaryto CAEP6 (% of limit): 69.6
NOx Unitaryto CAEP8 (% of limit): 74.1
NOx LTO (g): 1017
Smoke Take Off (SN): 13.5
Smoke Climb Out (SN): 12.7
Smoke Approach (SN): 5.7
Smoke Idle (SN): 2.3
Smoke Max (SN): 15.4
Smoke Characteristic (SN): 16.9
Smoke Characteristicto Regulatory (% of limit): 51.8
Fuel Flow Take Off (kg/s): 0.3581
Fuel Flow Climbout (kg/s): 0.2955
Fuel Flow Approach (kg/s): 0.1034
Fuel Flow Idle (kg/s): 0.0408
Fuel LTO (kg): 143
Fuel Venting Compliant: No
Carbon Monoxide LTO (g): 2796
Emissions Data Status: C
Engine Status: Out of production