The Boeing 787 Dreamliner represents a quantum leap in
aircraft design. It incorporates composite materials instead of predominantly aluminum,
and is equipped with revolutionary systems that make it the leader in the long-haul
aircraft category.
Features and their resulting advantages
to the customer are as follows:
Structural Composites: The
use of these materials result in lightweight, fuel economy and extended
range.
Electromechanical Brakes: Compared to older
hydraulic brakes, these are lighter and have increased
reliability.
Large size: The aircraft can carry more fuel,
cargo and passengers.
Pressurization: Because of the
composite technology, less pressurization is needed than in conventional aircraft. The
result is that passengers feel less of a sense of jet
lag.
Spaciousness: The cabin design incorporates increased
legroom and added amenities such as
lounges.
Environmentally “Green”: The Dreamliner used 20%
less fuel per passenger. This results in fewer carbon emissions and quieter takeoffs
and landings.
Structural Superiority: Compared to aluminum
designs, composite technology provides improved structural strength and durability. The
result is longer aircraft life, less maintenance, corrosion resistance and less
susceptibility to structural fatigue.
Systems powering:
The Dreamliner has far less reliance on bleed-air powering of onboard systems. Instead
of bleeding hot air from the engines to provide power, the 787 has converted these
systems to a largely electric architecture. This results in improvements in engine
start, auxiliary power, de-icing, cabin pressurization and hydraulic
pumps.
Computing Systems: An advanced maintenance control
system improves troubleshooting.
Selective Paint
Stripping: The composite body allows chemical stripping of paint from the aircraft skin
(no longer requiring hand sanding).
Electrochromic Dimmable
Windows: Providing added passenger
comfort.
Interchangeable Engine Types: The composite wing
design facilitates interchange of engine types to the specifications of the
customer.
Quick Reparability: The composite materials
allow quick repair in the event of minor damage, allowing quick repairs at the
gate.
High-intensity LED Interior Lighting: Provides
improved interior lighting with lower energy
consumption.
Reduced Maintenance: Design permits overall
reduction in required scheduled maintenance: Compared to earlier aircraft, the 787
offers a 30% reduction in airframe and system maintenance requirements (and
costs).
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