Boeing has cut its production target twice in six months. Just 18 will be produced in each of the next two years. Counting cancellations, it hasn't sold a single 747 this year. Some brand-new 747s go into storage as soon as they leave the plant.
Boeing says it's committed to the 747, and sees a market for it in regions like Asia. But most airlines simply don't want big, four-engine planes anymore. They prefer newer two-engine jets that fly the same distance while burning less fuel.
Delta inherited 16 747s when it bought Northwest Airlines in 2008. Northwest last ordered a 747 in 2001, according to Flightglobal's Ascend Online Fleets.
Part of the problem is all those seats. A 747 can seat from 380 to 560 people, depending on how an airline sets it up. A full one is a moneymaker. But an airline that can't fill all the seats has to spread the cost of 63,000 gallons of jet fuel, roughly USD 200,000, among fewer passengers.
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And business travelers want more than one flight to choose from. So airlines fly smaller planes several times a day instead.
"No one wants the extra capacity" that comes with jumbo jets like the 747 and the Airbus A380, said Teal Group aviation consultant Richard Aboulafia.
The 747 once stood alone, with more seats than any other jet and a range of 6,000 miles, longer than any other plane. The plane was massive: six stories tall and longer than the distance the Wright Brothers traveled on their first flight.
"Everyone on the flight was dressed up," recalls passenger Thomas Lee, who was 17 when he took the inaugural passenger flight on Pan Am from New York to London in 1970. "After all, it was still back in the day when the romance of flight was alive and thriving."
International travel was mostly limited to those who could afford the pricy flights. The 747 changed that. The first 747s could seat twice as many passengers as the preferred international jet of the time, the Boeing 707.
The plane's profile was enhanced by its role as Air Force One and by flying the space shuttle piggyback across the country. The 747 became the world's most recognizable aircraft.