JSX, an American semi-private airline, may very well shake up the travel world with plans to buy up to 330 electric and hybrid aircraft. JSX (Jet Suite Executive) dispatches with some niceties of larger airlines, but also avoids long lines, TSA (Transport Safety Administration) baggage checks and shoe removal, and lengthy waits for mobs of passengers to stuff their bags in overhead compartments (there are none on their JSX Embraer 135s). Instead, a passenger arrives at a JSX ticket office, sometimes situated in a hangar on the sometimes funky end of the airport, gets a boarding pass and self-serves some light refreshments. He or she walks out to the 30-passenger (maximum allowed) craft, climbs aboard and finds an assigned seat (either two abreast or single). Passengers can even bring a certified service animal into the cabin. This type of aviation seems looser and more enabling than that of the big carriers. JSX is enjoying a lot of press and some …