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Why They Dim Planes' Lights (But Sometimes Not) For Take Offs & Landings (It's Not As Simple As You Think)
You may have heard that planes dim the lights during take off/landing so your eyes get used to darkness in the event of an emergency. But that's only part of the story. (yourmileagemayvary.net) Plus d'info...
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Sure want to have that extra electrical power available in case of a go around? Well maybe if we get to an all-electric airliner. Actually a crew would want to reduce electrical load demand in an engine out or generator failure but then again then aircraft will auto-shed to reduce loads in most cases. As a side note: the A-320 that landed on the Hudson River in daylight did quite well until some idiot opened the rear door before looking out!
