787 Dreamliner

Why is 787 Dreamliner buzzing?

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787 Dreamliner

The Boeing 787 Dreamliner is an American long-haul, mid-size widebody, twin-engine jet airliner made by Boeing Commercial Airplanes. Its variants seat 242 to 335 passengers in typical three-class seating configurations. It is the first airliner with an airframe constructed primarily of composite materials. The 787 was designed to be 20% more fuel-efficient than the Boeing 767, which it was intended to replace. The 787 Dreamliner's distinguishing features include mostly electrical flight systems, raked wingtips, and noise-reducing chevrons on its engine nacelles. The aircraft's initial designation was the 7E7, prior to its renaming in January 2005. The first 787 was unveiled in a roll-out ceremony on July 8, 2007 at Boeing's Everett factory. Development and production of the 787 has involved a large-scale collaboration with numerous suppliers worldwide. Final assembly takes place at the Boeing Everett Factory in Everett, Washington, and at the Boeing South Carolina factory in North Charleston, South Carolina. Originally planned to enter service in May 2008, the project experienced multiple delays. The airliner's maiden flight took place on December 15, 2009, and completed flight testing in mid-2011. Boeing has reportedly spent $32 billion on the 787 program. Final US Federal Aviation Administration and European Aviation Safety Agency type certification was received in August 2011, and the first 787-8 was delivered in September 2011. It entered commercial service on October 26, 2011 with launch customer All Nippon Airways. The stretched 787-9 variant, which is longer and can fly farther than the -8, first flew in September 2013. Deliveries of the 787-9 began in July 2014; it entered commercial service on August 7, 2014 with All Nippon Airways, with 787-9 launch customer Air New Zealand following two days later., the 787 had orders for 1,403 aircraft from 70 customers, with American Airlines having the largest number on order. The aircraft has suffered from several in-service problems related to its lithium-ion batteries, including fires on board during commercial service. These systems were reviewed by both the FAA and the Japan Civil Aviation Bureau. The FAA issued a directive in January 2013 that grounded all 787s in the US, and other civil aviation authorities followed suit. After Boeing completed tests on a revised battery design, the FAA approved the revised design and lifted the grounding in April 2013; the 787 returned to passenger service later that month.
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