Maybe until mid-1995. They all sit down, flap their arms and make jet swooshing sounds as if they are flying. They gather on the tarmac, arguing constantly about what kind of plane they want to build and how to put it together. Eventually, the passengers split into groups and build several different aircraft, but give them all the same name. Some passengers actually reach their destinations.
All passengers believe they got there.
The passengers all gather in the hangar, watching hundreds of technicians check the flight systems on this immense, luxury aircraft. It is claimed to cost less per passenger mile to operate these humungous planes than any other aircraft ever built, unless you personally have to pay for the ticket. All the passengers scramble aboard, as do the 200 technicians needed to keep it from crashing. The pilot takes his place up in the glass cockpit. He guns the engines, only to realize that the plane is too big to get through the hangar doors.