Trent 556-61

Turbofan · Rolls-Royce
Reaction Turbines
Maximum Takeoff Thrust
261.5 kN
Bypass Ratio
7.5
Overall Pressure Ratio
36.71
Fuel Flow Take Off
2.24 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 Phase5 Tiled
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 7.5 Overall Pressure Ratio 36.71 Afterburner No

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Similar reaction turbines

Name Aircraft Engine Manufacturer Maximum Takeoff Thrust (kN) Bypass Ratio Overall Pressure Ratio
Trent 556-61 Rolls-Royce 263.9 7.5 36.63 Compare
Trent 553-61 Rolls-Royce 251.9 7.5 35.19 Compare
GEnx-1B54/P2 GE Aircraft Engines 255.3 9.39 35.5 Compare
GEnx-1B54 GE Aircraft Engines 255.3 9.4 35.2 Compare
GEnx-1B54/P1 GE Aircraft Engines 255.3 9.4 35.1 Compare
GEnx-1B58 GE Aircraft Engines 271.3 9.2 37.2 Compare
All data (63 fields)
Name
Trent 556-61
EASA ID
6RR041
Aircraft Engine Manufacturer
Rolls-Royce
Aircraft Engine Type
Turbofan
Production End
1905-06-26
Geared Fan
No
Combustion Chamber
Phase5 Tiled
Afterburner
No
Streams
2
Bypass Ratio
7.5
Overall Pressure Ratio
36.71
Maximum Takeoff Thrust (kN)
261.5
Hydrocarbon Take Off (g/kg fuel)
0
Hydrocarbon Climb Out (g/kg fuel)
0
Hydrocarbon Approach (g/kg fuel)
0
Hydrocarbon Idle (g/kg fuel)
0.1
Hydrocarbon Unitary Average (g/kN)
0.1
Hydrocarbon Unitary Sigma (g/kN)
0.14
Hydrocarbon Unitary Range (g/kN)
0-0.2
Hydrocarbon Unitary Characteristic (g/kN)
0.2
Hydrocarbon Unitary Characteristicto Regulatory (% of limit)
1
Hydrocarbon LTO (g)
36
Carbon Monoxide Take Off (g/kg fuel)
0.02
Carbon Monoxide Climb Out (g/kg fuel)
0.25
Carbon Monoxide Approach (g/kg fuel)
0.46
Carbon Monoxide Idle (g/kg fuel)
10.3
Carbon Monoxide Unitary Average (g/kN)
14.6
Carbon Monoxide Unitary SD (g/kN)
0.99
Carbon Monoxide Unitary Range (g/kN)
13.9-15.3
Carbon Monoxide Unitary Characteristic (g/kN)
16.6
Carbon Monoxide Unitary Characteristicto Regulatory (% of limit)
14.1
NOx Take Off (g/kg fuel)
44.91
NOx Climb Out (g/kg fuel)
32.76
NOx Approach (g/kg fuel)
11.78
NOx Idle (g/kg fuel)
6.19
NOx Unitary Average (g/kN)
61.1
NOx Unitary SD (g/kN)
0.42
NOx Unitary Range (g/kN)
60.8-61.4
NOx Unitary Characteristic (g/kN)
67.2
NOx Unitaryto Standard (% of limit)
59.2
NOx Unitaryto CAEP2 (% of limit)
74.1
NOx Unitaryto CAEP4 (% of limit)
83.6
NOx Unitaryto CAEP6 (% of limit)
92.8
NOx Unitaryto CAEP8 (% of limit)
105.8
NOx LTO (g)
16113
Smoke Take Off (SN)
2.24
Smoke Climb Out (SN)
2.09
Smoke Approach (SN)
1.02
Smoke Idle (SN)
0.76
Smoke Max (SN)
3.1
Smoke Sigma (SN)
1.13
Smoke Range (SN)
2.3-3.9
Smoke Characteristic (SN)
3.7
Smoke Characteristicto Regulatory (% of limit)
20.3
Fuel Flow Take Off (kg/s)
2.24
Fuel Flow Climbout (kg/s)
1.83
Fuel Flow Approach (kg/s)
0.62
Fuel Flow Idle (kg/s)
0.23
Fuel LTO (kg)
843
Fuel Venting Compliant
Yes
Carbon Monoxide LTO (g)
3826
Emissions Data Status
C
Engine Status
Out of production