Boeing 747-400

Eric Friedebach
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Boeing 747-400
Boeing 747-400

View a VR 180 walk through tour of this aircraft on my YouTube channel here:
youtu.be/LTy5CzrqZ0Q?feature=shared

Boeing 747-451
US Registration N661US

The Boeing 747 is a large, long-range wide-body airliner designed and manufactured by Boeing Commercial Airplanes in the United States between 1968 and 2023. After introducing the 707 in October 1958, Pan Am wanted a jet 2+1⁄2 times its size, to reduce its seat cost by 30%. In 1965, Joe Sutter left the 737 development program to design the 747. In April 1966, Pan Am ordered 25 Boeing 747-100 aircraft, and in late 1966, Pratt & Whitney agreed to develop the JT9D engine, a high-bypass turbofan. On September 30, 1968, the first 747 was rolled out of the custom-built Everett Plant, the world's largest building by volume. The first flight took place on February 9, 1969, and the 747 was certified in December of that year. It entered service with Pan Am on January 22, 1970. The 747 was the first airplane called a "Jumbo Jet" as the first wide-body airliner.

The 747 is a four-engined jet aircraft, initially powered by Pratt & Whitney JT9D turbofan engines, then General Electric CF6 and Rolls-Royce RB211 engines for the original variants. With a ten-abreast economy seating, it typically accommodates 366 passengers in three travel classes. It has a pronounced 37.5° wing sweep, allowing a Mach 0.85 (490 kn; 900 km/h) cruise speed, and its heavy weight is supported by four main landing gear legs, each with a four-wheel bogie. The partial double-deck aircraft was designed with a raised cockpit so it could be converted to a freighter airplane by installing a front cargo door, as it was initially thought that it would eventually be superseded by supersonic transports.

In 1985, development of the longer range 747-400 began.[85] The variant had a new glass cockpit, which allowed for a cockpit crew of two instead of three,[86] new engines, lighter construction materials, and a redesigned interior. Development costs soared, and production delays occurred as new technologies were incorporated at the request of airlines. Insufficient workforce experience and reliance on overtime contributed to early production problems on the 747-400.[14] The -400 entered service in 1989.

This aircraft:

23719/696 – 747-451 registration N661US at the Delta Flight Museum, Atlanta, Georgia, US. This particular plane was the first 747-400 in service, as well as the prototype.

From Wikipedia
en.wikipedia.org/wiki/Boeing_747

Photo by Eric Friedebach

Attribution Some rights reserved
Taken on: February 13, 2020
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Sets appears in:   • Boeing 747-400 Delta Flight Museum    • Delta Flight Museum, Atlanta GA   
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