More Electric Aircraft

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More Electric Aircraft, originally known, somewhat misleadingly, as All Electric Aircraft, is a term given to simplyfying both the engine and airframe, by replacing conventional systems (e.g., hydraulic and pnuematic) with electric systems.

One example is using very compact electric actuators, with say Samarium-Cobalt permanent magnets, to deflect aircraft wing and tailplane moving surfaces.

Another example is replacing the bleed air system on the engine with an electrically driven blower system. The Rolls-Royce Trent 1000, currently being developed for the Boeing 787, has this latter feature, whereas the very similar Trent 1700 on the Airbus A350 will use the conventional system.


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