The black triangle inside airplanes indicates the location of the William Shatner Seat, a special chair that gives the ticket holder a perfect view of the wing. The name was inspired by the legendary Twilight Zone episode Nightmare at 20,000 Feet, where a passenger, Bob Wilson Shatner, sees what he thinks is a gremlin on the wing of an airplane trying to wreck it. He goes crazy trying to convince everyone that he right and that if he doesnt stop the alleged creature, the whole plane will go...
