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Precision Manuals Development Group (often abbreviated as PMDG) is a commercial add-on aircraft developer for the Microsoft Flight Simulator, [1] Lockheed Martin Prepar3D, [2] and X-Plane [3] series. The company was founded by Robert S. Randazzo, who stated that his ultimate goal was to develop the software to the point where it could be used ...
The Boeing 747-400 is a large, long-range wide-body airliner produced by Boeing Commercial Airplanes, an advanced variant of the initial Boeing 747.The "Advanced Series 300" was announced at the September 1984 Farnborough Airshow, targeting a 10% cost reduction with more efficient engines and 1,000 nautical miles [nmi] (1,900 km; 1,200 mi) of additional range.
The Boeing Dreamlifter, officially the 747-400 Large Cargo Freighter (LCF), is a wide-body cargo aircraft modified extensively from the Boeing 747-400 airliner. With a volume of 65,000 cubic feet (1,840 m 3) [1] it can hold three times that of a 747-400F freighter. [2]
The improved 747-400, featuring canted winglets, entered service in February 1989 with Northwest Airlines. The 747-400 is an improved model with increased range. It has wingtip extensions of 6 ft (1.8 m) and winglets of 6 ft (1.8 m), which improve the type's fuel efficiency by four percent compared to previous 747 versions. [179]
Japan Air Lines Flight 123 was a scheduled domestic passenger flight from Tokyo to Osaka, Japan.On August 12, 1985, the Boeing 747 flying the route suffered a severe structural failure and decompression 12 minutes into the flight.
The 747SP was the longest-range airliner available until the 747-400 entered service in 1989. Despite its technical achievements, the SP never sold as well as Boeing hoped. [ 5 ] Increased fuel prices in the mid-1970s to early 1980s, the SP's heavy wings, high cost, [ 5 ] and reduced capacity, and the increased ranges of forthcoming airliners ...
As of January 2025, there were 427 Boeing 747 aircraft in active airline service, comprising 1 747-100, 2 747SPs, 16 747-200s, 1 747-300, 256 747-400s, and 151 747-8s. These aircraft are listed by airline operators and variant in the following table.
On June 28, 1998, United Airlines Flight 863, a Boeing 747-400 flying United's regularly scheduled transpacific service from San Francisco International Airport to Sydney Airport was forced to shut down one of its right-wing engines and nearly collided with San Bruno Mountain while recovering from the engine failure.