Trent 772

Turbofan · Rolls-Royce

Reaction Turbines

Maximum Takeoff Thrust

316.3 kN

Bypass Ratio

5.03

Overall Pressure Ratio

35.8

Fuel Flow Take Off

3.2 kg/s

NOx Unitaryto CAEP8

105.8 % of limit

Architecture

Fan	Fan Stages —	Fan Blades —	Fan Technology —	Fan Pressure Ratio —
Gearbox	Geared Fan No	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 Improved traverse
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 5.03	Overall Pressure Ratio 35.8	Afterburner No

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Similar reaction turbines

Name	Aircraft Engine Manufacturer	Maximum Takeoff Thrust (kN)	Bypass Ratio	Overall Pressure Ratio
Trent 772	Rolls-Royce	315.9	5.03	35.79	Compare
PW4170	Pratt & Whitney	311.4	4.86	33.8	Compare
CF6-80E1A3	GE Aircraft Engines	304.8	5.1	35.7	Compare
PW4168-1D	Pratt & Whitney	305.1	4.92	33.1	Compare
PW4168A-1D	Pratt & Whitney	305.1	4.92	33.1	Compare
Trent 768	Rolls-Royce	304.2	5.15	34.48	Compare

All data (60 fields)

Name: Trent 772
EASA ID: 3RR030
Aircraft Engine Manufacturer: Rolls-Royce
Aircraft Engine Type: Turbofan
Fuel: AVTUR
Geared Fan: No
Combustion Chamber: Improved traverse
Afterburner: No
Streams: 2
Bypass Ratio: 5.03
Overall Pressure Ratio: 35.8
Maximum Takeoff Thrust (kN): 316.3
Hydrocarbon Take Off (g/kg fuel): 0
Hydrocarbon Climb Out (g/kg fuel): 0
Hydrocarbon Approach (g/kg fuel): 0.01
Hydrocarbon Idle (g/kg fuel): 1.46
Hydrocarbon Unitary Average (g/kN): 2.06
Hydrocarbon Unitary Range (g/kN): 1.74-2.37
Hydrocarbon Unitary Characteristic (g/kN): 3.2
Hydrocarbon Unitary Characteristicto Regulatory (% of limit): 16.3
Hydrocarbon LTO (g): 640
Carbon Monoxide Take Off (g/kg fuel): 0.2
Carbon Monoxide Climb Out (g/kg fuel): 0.16
Carbon Monoxide Approach (g/kg fuel): 0.89
Carbon Monoxide Idle (g/kg fuel): 17.94
Carbon Monoxide Unitary Average (g/kN): 26
Carbon Monoxide Unitary Range (g/kN): 24.2-27.4
Carbon Monoxide Unitary Characteristic (g/kN): 31.9
Carbon Monoxide Unitary Characteristicto Regulatory (% of limit): 27
NOx Take Off (g/kg fuel): 34.38
NOx Climb Out (g/kg fuel): 26.44
NOx Approach (g/kg fuel): 10.3
NOx Idle (g/kg fuel): 4.71
NOx Unitary Average (g/kN): 56.3
NOx Unitary Range (g/kN): 55-57.4
NOx Unitary Characteristic (g/kN): 65.3
NOx Unitaryto Standard (% of limit): 58.5
NOx Unitaryto CAEP2 (% of limit): 73.1
NOx Unitaryto CAEP4 (% of limit): 83.1
NOx Unitaryto CAEP6 (% of limit): 92.5
NOx Unitaryto CAEP8 (% of limit): 105.8
NOx LTO (g): 17784
Smoke Take Off (SN): 1.9
Smoke Climb Out (SN): 2
Smoke Approach (SN): 0.7
Smoke Idle (SN): 0.2
Smoke Max (SN): 2
Smoke Range (SN): 1.6-2.5
Smoke Characteristic (SN): 2.6
Smoke Characteristicto Regulatory (% of limit): 15.1
Fuel Flow Take Off (kg/s): 3.2
Fuel Flow Climbout (kg/s): 2.58
Fuel Flow Approach (kg/s): 0.85
Fuel Flow Idle (kg/s): 0.28
Fuel LTO (kg): 1116
Carbon Monoxide LTO (g): 8099
Emissions Data Status: C
Emissions Data Superseded: Yes
Emissions Superseded By: 14RR071
NOx Compliance Demonstration: 2.3.2 d)