airbus a350 xwb
TRANSCRIPT
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ContentsINTRODUCTIONDEVELOPMENTDESIGNFUSELAGEWINGSENGINE
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Introduction
The Airbus A350 XWB is a family of long-range, twin-engine wide-body jet airliners developed by European aircraft manufacturer Airbus. The A350 is the first Airbus with both fuselage and wing structures made primarily of carbon-fiber-reinforced polymer .
Introduction
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Variants
VariantsThere are three variants of the A350 In July 2012, the A350-900( 440 passengers) was scheduled to enter service in the second half of 2014;then the A350 800(440 −passengers) in mid-2016, and A350 1000(475 −passengers) in 2017.
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DesignThe A350 XWB will be built on the technologies developed for Airbus A380 and will have a similar cockpit and fly-by-wire systems layout .The A350 XWB will be made out of 53% composites, 19% Al/Al-Li,14% titanium, 6% steel, and 8% miscellaneous.
Design
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Fuselage
The A350 XWB's innovative carbon-fibre reinforced plastic fuselage plus aluminium-lithium and titanium alloy components result in lower fuel consumption and easier maintenance.
The A350 XWB’s major fuselage sections are created by the assembly of four large panels each, which are joined with longitudinal riveted joints.
Fuselage
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One advantage of this approach is a better management of tolerances when the jetliner’s composite fuselage sections come together on the A350 XWB final assembly line.
The four-panel concept also provides considerable weight savings, as longer panels require fewer circumferential joints – which are relatively heavy – relying more on lighter longitudinal joints.
Another benefit is improved reparability in operational service, as an individual panel can be replaced in the event of significant damage – avoiding major repair work that could require extensive composite patching.
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Wings• .The A350 features new composite wings with a wingspan area of 443 m 2
The A350 features the largest wing of a single-deck wide body aircraft in production.
The A350's new wing has a 31.9° sweep angle ,helping to increase typical cruise speed to Mach 0.85 and maximum operating speed to Mach 0.89.
The wing tip will not have Airbus's traditional wingtip fences, but instead will curve upwards over the final 4.4 metres (14 ft) in a "sabre-like" shape.
Wings
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The manufacturer has extensively used computational fluid dynamics and also carried out more than 4,000 hours of low- and high-speed wind tunnel testing to refine the aerodynamic design ,achieving the final configuration of wing and winglet.
The wing design includes several streamlined features. Among these are droop-nose leading edge devices and new adaptive dropped-hinge flaps, which increase the jetliner’s efficiency at low speeds.
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Engine
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This lightweight, three-shaft power plant – the latest member of Rolls-Royce's Trent family – is produced using advanced manufacturing techniques for a lighter, more capable and highly efficient engine.
The Trent XWB’s state-of-the-art design also includes low hub-tip ratio swept fan, advanced compressor aerodynamics, next-generation clearance control and new material technologies.
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The thrust produced by the A350-900 is 350 kN (79,000 lbf).
The Trent XWB will feature a 300-centimetre (118 in) fan diameter and the design will be based on the advanced developments of the Trent 900 (Airbus A380) and Trent 1000 (Boeing 787)
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6 identical, interchangeable SCREEN DISPLAYS
More comfort and clarity for pilots
Optimized ELECTRICAL ARCHITECTURE
More reliable , weight savings and easier maintenance
ADVANCED TECHNOLOGY
CONNECTED AIRCRAFT data-ground Efficient in-advance maintenance operations that support better air traffic management
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NEW Rolls Royce TRENT XWB ENGINES
-25% CO2 emissions per passenger than current generation aircraft
LOWEST CARBON EMISSIONS of
any wide body power plant
ENGINE
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AERODYNAMICSNearly
ALL-COMPOSITE
32-METER wings
More lift and less drag, and fuel burn
WINGS CHANGE THEIR SHAPEFor maximum aerodynamic efficiencythroughout the flight
Reduce wing drag
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AIRFRAME
70% advancedmaterials combiningCOMPOSITES, TITANIUMAND MODERN ALUMINIUM ALLOYS
Corrosion-free and fatigue-free25% lower operating cost
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New CARBON
FIBRE REINFORCED
PLASTIC fuselageLower fuel burn and Easier maintenance
4 PANEL CONCEPT associated with ultra-long panelsWeight savings and easier maintenance
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