The electric plane revolution is finally here, and it promises to shake up the $840 billion airline industry

· Large segments of the $840 billion airline industry are ripe for electrification, according to an analyst at the research firm Lux Research. 
· Small, fixed-wing planes that carry 1 to 19 passengers will be the first to electrify. Those include private jets. 
· It will be much harder to bring futuristic-looking air taxis...