Airbus has been quietly pitching the standing-room-only option to Asian carriers, though none has agreed to it yet. Passengers in the standing section would be propped against a padded backboard, held in place with a harness, according to seating experts who have seen a proposal.
"There is clearly pressure on carriers to make the total passenger count as efficient as possible," said Howard Guy, a director for Design Q, a seating- design consultancy in England. "After all, the fewer seats that are put on board, the more expensive the seat price becomes. It's basic math."