Trent 768

Turbofan · Rolls-Royce

Reaction Turbines

Maximum Takeoff Thrust

300.3 kN

Bypass Ratio

5.15

Overall Pressure Ratio

Fuel Flow Take Off

2.97 kg/s

NOx Unitaryto CAEP8

104.1 % 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 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 5.15	Overall Pressure Ratio 34	Afterburner No

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Similar reaction turbines

Name	Aircraft Engine Manufacturer	Maximum Takeoff Thrust (kN)	Bypass Ratio	Overall Pressure Ratio
Trent 768	Rolls-Royce	298.7	5.15	34.04	Compare
PW4168	Pratt & Whitney	302.48	5.1	33.1	Compare
PW4168A	Pratt & Whitney	302.48	5.1	33.1	Compare
CF6-80E1A4	GE Aircraft Engines	297.44	5.1	34.5	Compare
CF6-80E1A3	GE Aircraft Engines	304.8	5.1	35.7	Compare
PW4168-1D	Pratt & Whitney	305.1	4.92	33.1	Compare

All data (59 fields)

Name: Trent 768
EASA ID: 3RR029
Aircraft Engine Manufacturer: Rolls-Royce
Aircraft Engine Type: Turbofan
Fuel: AVTUR
Geared Fan: No
Combustion Chamber: Improved traverse
Afterburner: No
Streams: 2
Bypass Ratio: 5.15
Overall Pressure Ratio: 34
Maximum Takeoff Thrust (kN): 300.3
Hydrocarbon Take Off (g/kg fuel): 0
Hydrocarbon Climb Out (g/kg fuel): 0.01
Hydrocarbon Approach (g/kg fuel): 0.01
Hydrocarbon Idle (g/kg fuel): 1.89
Hydrocarbon Unitary Average (g/kN): 2.7
Hydrocarbon Unitary Range (g/kN): 2.29-3.13
Hydrocarbon Unitary Characteristic (g/kN): 4.2
Hydrocarbon Unitary Characteristicto Regulatory (% of limit): 21.4
Hydrocarbon LTO (g): 801
Carbon Monoxide Take Off (g/kg fuel): 0.18
Carbon Monoxide Climb Out (g/kg fuel): 0.15
Carbon Monoxide Approach (g/kg fuel): 1.02
Carbon Monoxide Idle (g/kg fuel): 20.22
Carbon Monoxide Unitary Average (g/kN): 29.7
Carbon Monoxide Unitary Range (g/kN): 27.6-31.4
Carbon Monoxide Unitary Characteristic (g/kN): 36.5
Carbon Monoxide Unitary Characteristicto Regulatory (% of limit): 30.9
NOx Take Off (g/kg fuel): 31.25
NOx Climb Out (g/kg fuel): 24.66
NOx Approach (g/kg fuel): 10.01
NOx Idle (g/kg fuel): 4.52
NOx Unitary Average (g/kN): 52.2
NOx Unitary Range (g/kN): 51-53.1
NOx Unitary Characteristic (g/kN): 60.5
NOx Unitaryto Standard (% of limit): 56
NOx Unitaryto CAEP2 (% of limit): 70
NOx Unitaryto CAEP4 (% of limit): 80.7
NOx Unitaryto CAEP6 (% of limit): 90.4
NOx Unitaryto CAEP8 (% of limit): 104.1
NOx LTO (g): 15658
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): 14.8
Fuel Flow Take Off (kg/s): 2.97
Fuel Flow Climbout (kg/s): 2.43
Fuel Flow Approach (kg/s): 0.81
Fuel Flow Idle (kg/s): 0.27
Fuel LTO (kg): 1061
Carbon Monoxide LTO (g): 8786
Emissions Data Status: C
Engine Status: Out of production
NOx Compliance Demonstration: 2.3.2 d)