1989 - 2010 Boeing 747-400

The Boeing 747-400 is an improved version of the 747-300, the best selling model in the 747 family.
The 747-400 is to be superseded by the Boeing 747-8 as the latest commercial model, which is programmed to begin deliveries in 2010.
The aircraft received certification on January 10, 1989 having Pratt & Whitney PW4000 engines, May 18, 1989 having General Electric CF6-80C2s and June 8, 1989 having Rolls-Royce RB211-524Gs.
Boeing delivered the first 747-400 airplane in 1989 to Northwest Airlines.

he Boeing 747-400 airplanes offer their services at over 210 airports around the world; also it is called “the world’s best freighter” and the world’s fastest commercial jetliner.
The 747-400’s has also the most visible aerodynamic enhancements - the 6-foot (1.8 m) longer wing with a 6-foot-high winglet angled upward and slightly outward. These improvements reduce fuel burn and extend the airplane’s range.
So, the 747-400 aircraft will deliver more range, lower noise, better fuel economy and lower operating costs .