Trent 772

Turbofan · Rolls-Royce

Reaction Turbines

Maximum Takeoff Thrust

320.3 kN

Bypass Ratio

5.03

Overall Pressure Ratio

36.3303

Fuel Flow Take Off

3.139 kg/s

NOx Unitaryto CAEP8

93.1 % 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 Phase5
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 36.3303	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	320.3	5.03	36.3303	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 (64 fields)

Name: Trent 772
EASA ID: 14RR071
Aircraft Engine Manufacturer: Rolls-Royce
Aircraft Engine Type: Turbofan
Geared Fan: No
Combustion Chamber: Phase5
Afterburner: No
Streams: 2
Bypass Ratio: 5.03
Overall Pressure Ratio: 36.3303
Maximum Takeoff Thrust (kN): 320.3
Hydrocarbon Take Off (g/kg fuel): 0.01
Hydrocarbon Climb Out (g/kg fuel): 0.01
Hydrocarbon Approach (g/kg fuel): 0.04
Hydrocarbon Idle (g/kg fuel): 2.46
Hydrocarbon Unitary Average (g/kN): 3.27
Hydrocarbon Unitary Sigma (g/kN): 0.75
Hydrocarbon Unitary Range (g/kN): 2.41-3.74
Hydrocarbon Unitary Characteristic (g/kN): 3.82
Hydrocarbon Unitary Characteristicto Regulatory (% of limit): 19.5
Hydrocarbon LTO (g): 1048
Carbon Monoxide Take Off (g/kg fuel): 0.21
Carbon Monoxide Climb Out (g/kg fuel): 0.49
Carbon Monoxide Approach (g/kg fuel): 1.56
Carbon Monoxide Idle (g/kg fuel): 23.97
Carbon Monoxide Unitary Average (g/kN): 33.12
Carbon Monoxide Unitary SD (g/kN): 5.61
Carbon Monoxide Unitary Range (g/kN): 26.8-37.48
Carbon Monoxide Unitary Characteristic (g/kN): 35.8
Carbon Monoxide Unitary Characteristicto Regulatory (% of limit): 30.4
NOx Take Off (g/kg fuel): 35.56
NOx Climb Out (g/kg fuel): 26.82
NOx Approach (g/kg fuel): 10.42
NOx Idle (g/kg fuel): 4.66
NOx Unitary Average (g/kN): 55.17
NOx Unitary SD (g/kN): 2.4
NOx Unitary Range (g/kN): 53.41-57.9
NOx Unitary Characteristic (g/kN): 58.4
NOx Unitaryto Standard (% of limit): 51.9
NOx Unitaryto CAEP2 (% of limit): 64.8
NOx Unitaryto CAEP4 (% of limit): 73.4
NOx Unitaryto CAEP6 (% of limit): 81.6
NOx Unitaryto CAEP8 (% of limit): 93.1
NOx LTO (g): 17668
Smoke Take Off (SN): 1.4
Smoke Climb Out (SN): 1.8
Smoke Approach (SN): 0.6
Smoke Idle (SN): 0.2
Smoke Max (SN): 1.94
Smoke Sigma (SN): 0.66
Smoke Range (SN): 1.3-2.6
Smoke Characteristic (SN): 2.14
Smoke Characteristicto Regulatory (% of limit): 12.4
Fuel Flow Take Off (kg/s): 3.139
Fuel Flow Climbout (kg/s): 2.53
Fuel Flow Approach (kg/s): 0.821
Fuel Flow Idle (kg/s): 0.27
Fuel LTO (kg): 1085
Fuel Venting Compliant: Yes
Carbon Monoxide LTO (g): 10606
Emissions Data Status: C/R
Emissions Data Superseded: Yes
Emissions Superseded By: 01P14RR102
NOx Compliance Demonstration: 2.3.2 e)