767s were manufactured was in a conventional slant position (shown here) until 2002, when the 767 program officially transitioned to orienting the airplane in a straight line configuration when it faced two 767s toward the big factory doors in Everett, WA. At that time, the Boeing 767 joined the 717, 737, 747 and 757 programs, which also use this innovative manufacturing technique -- called a moving line -- to improve production efficiency and quality, while shortening the time it takes to deliver airplanes to airline customers.