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How many Boeing 777X prototypes were built?
For most of its 777X testing, Boeing has operated four prototypes. These aircraft are WH001 (N779XW), WH002 (N779XX), WH003 (N77XY) and WH004 (N779XZ). However, in August 2025, a fifth test aircraft ...
Boeing’s last 787-8 Dreamliner test aircraft ‘ZA004’ has retired to the Arizona desert after performing more than 670 test flights over 16 years of service.
Boeing still faces a “mountain” of uncompleted 777-9 certification work and is “falling behind” in bringing the jet through Federal Aviation Administration approval, according to chief executive Kelly ...
With a United 737-8 jet serving as Boeing’s 2025 ecoDemonstrator Explorer, pilots conducted test flight evaluating a modernized data communications system designed to improve information flow between ...
Boeing and United Airlines completed nine test flights of a United 737-8 to evaluate the Internet Protocol Suite, a next-generation digital communications system for aviation. The tests, spanning the ...
In 2014, NASA awarded Boeing's Starliner a contract to fly astronauts to and from the International Space Station (ISS). But after some technical issues during Starliner's 2024 crewed test flight, the ...
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