Engines Airbus A380

engine alliance gp7200 engine waiting installation

the a380 available 2 types of turbofan engines, rolls-royce trent 900 (variants a380-841, −842 , −843f) or engine alliance gp7000 (a380-861 , −863f). trent 900 derivative of trent 800, , gp7000 has roots ge90 , pw4000. trent 900 core scaled version of trent 500, incorporates swept fan technology of stillborn trent 8104. gp7200 has ge90-derived core , pw4090-derived fan , low-pressure turbo-machinery.

noise reduction important requirement in a380 design, , particularly affects engine design. both engine types allow aircraft achieve under qc/2 departure , qc/0.5 arrival noise limits under quota count system set heathrow airport, key destination a380. a380 has received award reduced noise. however, field measurements suggest approach quota allocation a380 may overly generous compared older boeing 747, still quieter. rolls-royce supporting caa in understanding relatively high a380/trent 900 monitored noise levels. heathrow’s landing charges having noise component, a380 cheaper land there pair of 777s , saves $4,300 $5,200 per landing or $15.3m $18.8m of present value on 15 years, , tokyo narita has similar noise charge.

the a380 planned without thrust reversers, incorporating sufficient braking capacity without them. airbus elected equip 2 inboard engines thrust reversers in late stage of development, helping brakes when runway slippery. 2 outboard engines not have reversers, reducing amount of debris stirred during landing. a380 has electrically actuated thrust reversers, giving them better reliability pneumatic or hydraulic equivalents, in addition saving weight.

in 2008, a380 demonstrated viability of synthetic fuel comprising standard jet fuel natural-gas-derived component. on 1 february 2008, three-hour test flight operated between britain , france, 1 of a380 s 4 engines using mix of 60% standard jet kerosene , 40% gas liquids (gtl) fuel supplied shell. aircraft needed no modifications gtl fuel, designed mixed normal jet fuel. sebastien remy, head of airbus sas s alternative fuel programme, said gtl used no cleaner in co2 terms standard fuel contains no sulphur, generating air quality benefits.

the auxiliary power comprises auxiliary power unit (apu), electronic control box (ecb), , mounting hardware. apu in use on a380 pw 980a apu. apu provides air power analysis ground station (ags) on ground , start engines. ags semi-automatic analysis system of flight data helps optimise management of maintenance , reduce costs. apu powers electric generators provide auxiliary electric power aircraft.