AERONAUTICAL ENGINEERING-AIRBUS A350 XWB OVERVIEW

2. Contents
INTRODUCTION
DEVELOPMENT
DESIGN
FUSELAGE
WINGS
ENGINE

3. 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-
Introduction

4. VariantsVariant
s
There 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−

5. 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

6. 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

7. 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.

8. Wings
• .
The A350 features new composite wings
with a wingspan area of 443 m2
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
Wings

9. 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.

10. Engine

11. 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

12. 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

14. 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

15. 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

16. AERODYNAMICS
Nearly
ALL-COMPOSITE
32-METER wings
More lift and less drag, and fuel burn
WINGS CHANGE THEIR SHAPE
For maximum aerodynamic efficiency
throughout the flight
Reduce wing drag

17. AIRFRAME
70%advanced
materials combining
COMPOSITES, TITANIUM
AND MODERN ALUMINIUM
ALLOYS
Corrosion-free and fatigue-free
25% lower operating cost

18. New
CARBON
FIBRE
REINFORCED
PLASTIC fuselage
Lower fuel burn and
Easier maintenance
4 PANEL CONCEPT
associated with ultra-long panels
Weight savings and easier maintenance