Boeing builds planes in days, not months

Boeing's assembly lines are so efficient they can build commercial airplanes in just days, a massive leap from the months it once took. At facilities like the Renton factory, a Boeing 737 moves through final assembly in about nine to ten days, with the line advancing every 17 hours. This rapid pace, inspired by lean manufacturing, helps meet the global demand for over 40,000 new jets by 2040.