Why are the 787 wings curved?
The wings of Boeing 787 Dreamliner are curved due to the presence of carbon fiber material on its wings. The carbon fiber material can be stretched more hence providing flexibility to its wings. The carbon fiber material has high aspect ratio of 11 which ultimately magnifies this bending effect.
Why did Boeing adopt the radical change approach for designing and developing the 787 Dreamliner?
Boeing decided to change the rules of the way large passenger aircraft were developed through its Dreamliner program; rather than simply relying on technological know-how, it decided to use collaborated as a competitive tool embedded in a new global supply chain process.
What is revolutionary about the structure of the new Boeing 787 airliner?
The chief breakthrough material technology on the 787 is the increased use of composites. The 787 is 50 percent composite by weight. A majority of the primary structure is made of composite materials, most notably the fuselage. Composite materials have many advantages.
Where are 787 wings made?
Nagoya
MHI is the sole supplier of the 787 composite wings and manufactures them at its factory in Nagoya. The deal with MHI fits with Boeing’s company-wide drive of reducing its cost structure.
What went wrong with Boeing culture?
A “culture of concealment”, cost cutting and “grossly insufficient” oversight led to two fatal crashes of Boeing 737 Max aircraft that claimed 346 lives, a congressional report has concluded.
Why does Boeing have to change the design of the 787?
Making changes is a routine part of designing and building airplanes. This rigorous process is in place because of the complexity of commercial jetliners—the 787 Dreamliner has 2.3 million parts and complex, integrated systems—and because changes can have significant engineering and production implications.
When was the first Boeing 787 Dreamliner made?
13 May 2007 – Boeing starts to put together the first Boeing 787 Dreamliner in Everett, Washington. June 2007 – Reports surface at the Paris Air Show that the Boeing 787 is up to four months late.
What kind of propulsion system does the 787 have?
The variable frequency starter generator delivers many benefits, including the replacement of the heritage bleed air system. The 787 main electrical power generation and start system is a four-channel variable frequency system with two 250 kVA VFSGs on each of the two main engines.
Why is the 787 made out of composite materials?
The 787 is 50 percent composite by weight. A majority of the primary structure is made of composite materials, most notably the fuselage. Composite materials have many advantages. They allow a lighter, simpler structure, which increases airplane efficiency, reduces fuel consumption and reduces weight-based maintenance and fees.