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Tumansky R-25 ✕ CF34-3A/A1/A2/B1/B2 ✕
EASA ID 07P05GE220
Aircraft Engine Manufacturer Tumansky General Electric Company
Aircraft Engine Type Turbojet Turbofan
Dry Weight (kg) 1212
Diameter (mm) 1191
Length (mm) 4615
Wikipedia Article (URL) en.wikipedia.org/wiki/Tumansky_R-25
Fuel Jet A
Geared Fan No No
Combustion Chamber Cannular 10 burners SAC
Afterburner Yes No
Streams 1 2
Bypass Ratio 6.25
Overall Pressure Ratio 19.3
Maximum Takeoff Thrust (kN) 40.3 41.01
Thrust To Weight 5.6
Hydrocarbon Take Off (g/kg fuel) 0.06
Hydrocarbon Climb Out (g/kg fuel) 0.05
Hydrocarbon Approach (g/kg fuel) 0.13
Hydrocarbon Idle (g/kg fuel) 4.69
Hydrocarbon Unitary Average (g/kN) 8.9
Hydrocarbon Unitary Characteristic (g/kN) 13.7
Hydrocarbon Unitary Characteristicto Regulatory (% of limit) 69.9
Hydrocarbon LTO (g) 366
Carbon Monoxide Take Off (g/kg fuel) 0
Carbon Monoxide Climb Out (g/kg fuel) 0
Carbon Monoxide Approach (g/kg fuel) 1.88
Carbon Monoxide Idle (g/kg fuel) 47.59
Carbon Monoxide Unitary Average (g/kN) 89.7
Carbon Monoxide Unitary Characteristic (g/kN) 110.1
Carbon Monoxide Unitary Characteristicto Regulatory (% of limit) 93.3
NOx Take Off (g/kg fuel) 11.28
NOx Climb Out (g/kg fuel) 9.68
NOx Approach (g/kg fuel) 6.63
NOx Idle (g/kg fuel) 3.72
NOx Unitary Average (g/kN) 26.3
NOx Unitary Characteristic (g/kN) 30.5
NOx Unitaryto Standard (% of limit) 38.8
NOx Unitaryto CAEP2 (% of limit) 48.5
NOx Unitaryto CAEP4 (% of limit) 50.9
NOx Unitaryto CAEP6 (% of limit) 52.1
NOx Unitaryto CAEP8 (% of limit) 56.4
NOx LTO (g) 1078
Smoke Take Off (SN) 18.3
Smoke Climb Out (SN) 9.2
Smoke Approach (SN) 3.1
Smoke Idle (SN) 3.1
Smoke Max (SN) 18.3
Smoke Characteristic (SN) 23.6
Smoke Characteristicto Regulatory (% of limit) 78.1
Fuel Flow Take Off (kg/s) 0.3991
Fuel Flow Climbout (kg/s) 0.3288
Fuel Flow Approach (kg/s) 0.116
Fuel Flow Idle (kg/s) 0.0489
Fuel LTO (kg) 164
Afterburner Thrust (kN) 69.6
Carbon Monoxide LTO (g) 3683
Compressor Description Two-spool axial compressor 3 LP stages, 5 HP stages
Emissions Data Status C
NOx Compliance Demonstration 2.3.2 e)
nvPME Imass Approach (mg/kg) 0.8088
nvPME Imass Climb Out (mg/kg) 114.0471
nvPME Imass Idle (mg/kg) 1.4487
nvPME Imass Max (mg/kg) 287.0006
nvPME Imass Take Off (mg/kg) 287.0006
nvPME Inum Approach (#/kg) 80427050000000
nvPME Inum Climb Out (#/kg) 1333178000000000
nvPME Inum Idle (#/kg) 167524400000000
nvPME Inum Max (#/kg) 2006645000000000
nvPME Inum Take Off (#/kg) 2006645000000000
nvPMLTO Mass (mg) 10006.38
nvPMLTO Mass Per Thrust (mg/kN) 339.1479
nvPMLTO Mass To CAEP11 (% of limit) 35.0526
nvPMLTO Number (#) 107382800000000000
nvPMLTO Number Per Thrust (#/kN) 3639545000000000
nvPMLTO Number To CAEP11 (% of limit) 31.4128
nvPM Mass Concentration Characteristic (mg/m³) 10129.73
nvPM Mass Concentration Max (mg/m³) 7869.784
nvPM Mass Concentration To CAEP10 (% of limit) 90.6489
Turbine Description 1 HP stage, 1 LP stage