The four- engine aircraft , manufactured by Boeing Commercial Airplanes , uses a two-deck configuration with the upper deck reserved for business class. The 3-class configuration (first class, business class and economy class) can accommodate 400 passengers and the 1-class configuration (economy class only) can accommodate 600 passengers.The 747 can fly at a speed of 0.85 Mach or 909 kilometers per hour and is capable of flying a maximum distance of 13,570 km to 15,000 km. In 1989 , Qantas flew non-stop from London to Sydney , the flight distance was 18,000 km and was completed in 20 hours 9 minutes . However, the flight did not carry passengers or cargo (the plane was empty). By May 2004 , 1382 Boeing 747 aircraft , with various configurations, had been repaired or improved, making the 747 one of Boeing's most successful products . [1] Archived 2018-09-28 at the Wayback Machine