Explore the fascinating story of the Boeing 747X—a series of aircraft that could have redefined aviation but were ultimately never released. The 747X was Boeing’s ambitious attempt to compete in an ...

Boeing Co. expects to launch development of its proposed 747X super jumbo airliner in six to nine months, spending about $4 billion on the project, the company said Thursday.

Boeing Co. said it had briefed more than 30 airline customers on its outlines for longer-range and higher-capacity versions of the 420-seat 747-400 during a three-day Seattle symposium.

The 747X Stretch has been getting most of the attention. It could carry about 100 passengers more than the 416-seat 747-400, and is being promoted to airlines as an alternative to the 555 ...

The 747X Stretch would be the basis for a new 747 family including a 150t payload freighter, domestic and combi versions, as well as asuccessor to today's -400.

747X and instead will focus on developing the "Sonic Cruiser" -- a radically new jetliner that will travel at nearly the speed of sound, the aerospace company announced Thursday ...

Boeing is having to con-front a dwindling number of prospective launch customers for the 747X in the near-term, with FedEx Express becoming the latest international carrier to add its name to the ...

Boeing Commercial CEO Alan Mulally yesterday confirmed the company will drop plans to develop the 747X in favor of producing a "sonic cruiser" by the end of the decade that will lop over three ...

Boeing has reportedly shelved designs for its giant 747X and will instead focus on developing smaller jetliners to travel at nearly the speed of sound.

Boeing believes the freighter version of its proposed 747X Stretch has strong advantages over a planned Airbus A3XXF that will make it tough for Airbus to make inroads in the air cargo business.