B747-400

The Boeing 747-400 is a long-range, wide-body airliner and an advanced variant of the original Boeing 747 "jumbo jet". It features improvements like a glass cockpit, which eliminated the need for a flight engineer, a longer-span wing with winglets for better aerodynamics, a redesigned upper deck, and more powerful engines. First flown in 1988, it entered service in 1989 and was produced until 2009 in various models, including passenger, freighter, and extended-range versions.

Key features and improvements

• Flight deck: Features a two-crew, "glass cockpit" that eliminates the need for a flight engineer.
• Wings: Stretched by 5.2 meters with 1.8-meter winglets to improve aerodynamics and efficiency, despite being lighter than the original due to new materials.
• Range: Increased range due to the addition of a fuel tank in the horizontal tail.
• Performance: Offers a cruise speed of 933 km/h and can carry 416 to 660 passengers depending on the configuration.
• Cabin: Includes a restyled cabin with new materials and an all-new interior, as well as a stretched upper deck (SUD) on the passenger version.
• Service entry: First delivered to Northwest Airlines in January 1989.

Variants

• 747-400: The standard passenger version.
• 747-400F: The freighter version.
• 747-400M: A combination passenger and freighter version.
• 747-400D: A version for short-haul, high-density domestic routes.
• 747-400ER and 747-400ERF: Extended-range versions for both passenger and cargo