Southampton 1 P Bradshaw EDXCW. Commercial Aircraft Conceptual Design - Some Considerations 15 th November 2005 P Bradshaw EDXCW Wing & Aerodynamics Skill.

Southampton 1

P Bradshaw

EDXCW

Commercial Aircraft Conceptual Design- Some Considerations

15th November 2005

P Bradshaw

EDXCW Wing & Aerodynamics Skill Group

Airbus UK Reference: EDXCW/ R+T/ PB/ 20441A

© A

IRB

US

S.A

.S.

All

right

s re

serv

ed.

Con

fiden

tial a

nd p

ropr

ieta

ry d

ocum

ent.

Future Projects Today

•Whole aircraft sizing and optimisation:Straightforward modelling of physics for many design iterations.

Realistic assumptions.Relies on intelligent use of constraints & performance trends.

Technology understanding.Realism through accurate component audit & re-run.

© A

IRB

US

S.A

.S.

All

right

s re

serv

ed.

Con

fiden

tial a

nd p

ropr

ieta

ry d

ocum

ent.

Current EDX Capabilities

EDXG, Overall a/c

EDXC, Disciplines & Components

Note: Only typical tasks & timing illustrated ITP

ATO

M6Structure / Sytem

Specification Completed

Detailed A/C Concept

Validated

M5Concept Phase Definition Phase

Feasibility PhaseM3

A/C Concept

Selected

Product Idea

Established

M0

Future Projects Office

Architect & Integrators

Technical responsibility

M1Market Opportunities

Identified

M4

Programs & Functions

© A

IRB

US

S.A

.S.

All

right

s re

serv

ed.

Con

fiden

tial a

nd p

ropr

ieta

ry d

ocum

ent.

What are Customers’ Needs ?

• Future concept selection will be chosen to fulfill the requirements to be met…………

Range

Payload

Noise

Safety

Operating cost – (Profit for airlines !)

Manufacturing Cost (Profit for us !)

•That means understanding the options available to us, and the challenges

ahead – does the latter infer that particular technologies have to be used,

whether we like it or not ??

Reliable etc etc etc (OI, MMEL)

Cheap to maintain (DMC)

© A

IRB

US

S.A

.S.

All

right

s re

serv

ed.

Con

fiden

tial a

nd p

ropr

ieta

ry d

ocum

ent.

Activities, illustrationsVariety of Activities

New products & derivatives, Configuration developments

18.2m

56.0m

62.4m

58.0m

© A

IRB

US

S.A

.S.

All

right

s re

serv

ed.

Con

fiden

tial a

nd p

ropr

ieta

ry d

ocum

ent.

Component Concept Integration

Fatigue Fatigue performanceperformance

Aerodynamic Aerodynamic loadingloading

Drag reducedDrag reduced

0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 12

4

6

8

10

12

14

16

18

20Skin Thickness (upper skin)

[1]

t [m

m]

Design constraintsDesign constraintsTechnology needsTechnology needs

Composite technology Modelling

Aerodynamics, aero elastics

Technology

Integration

Technology

improvement

Stiffness Stiffness

Loads & ControlsLoads & Controls

Load Load alleviationalleviation

TechnologyTechnology enablersenablers

Integration is the technology value multiplierIntegration is the technology value multiplier

+

WingWingHigh LiftHigh Lift EngineEngine

© A

IRB

US

S.A

.S.

All

right

s re

serv

ed.

Con

fiden

tial a

nd p

ropr

ieta

ry d

ocum

ent.

Product Safety

• Less than 15% of all accidents are caused by manufacturer related issues.

• 85% of all incidents due to operational factors, ie flight operations, weather, ATC.

• Closing the gap requires more focus on human factors

• Incident reporting key to improving safety environment

© A

IRB

US

S.A

.S.

All

right

s re

serv

ed.

Con

fiden

tial a

nd p

ropr

ieta

ry d

ocum

ent.

0.00

1.00

2.00

3.00

4.00

5.00

6.00

7.00

8.00

9.00

10.00

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46

Includes western built jetsExcludes training, flight test, war, terrorism

Fatal accident

per million departures

1st generation:

Early jet

2nd generation:

2nd jet generation

3rd generation:

Glass-cockpitNav displayFMS

4th generation:

FBWFlight EnvelopeProtection

Fatal Accident/ Million departures (@ end 2004)

1st generation

4th generation3rd generation 2nd generation

© A

IRB

US

S.A

.S.

All

right

s re

serv

ed.

Con

fiden

tial a

nd p

ropr

ieta

ry d

ocum

ent.

Which is the best selection of concepts and technologies that Airbus should be preparing in order to face all launching assumptions

The focus is to be shifted from Product Strategy

to Capability Development

Some Key Questions

What are the multiple challenges for aircraft & airlines in the next decade

Which aircraft configurations, evolutionary or revolutionary, will offer the opportunities to meet these challenges

1

2

3

© A

IRB

US

S.A

.S.

All

right

s re

serv

ed.

Con

fiden

tial a

nd p

ropr

ieta

ry d

ocum

ent.

Why do Things Differently?

“Everything that can be invented has been invented”Charles Durell, US Patent Office, 1899

“Heavier-than-air flying machines are impossible”

Lord Kelvin, Royal Society President, 1895

“640K ought to be enough for anybody”Bill Gates, Microsoft, 1981

“The telephone has too many shortcomings

to be ...a means of communication”

Western Union internal memo, 1876

© A

IRB

US

S.A

.S.

All

right

s re

serv

ed.

Con

fiden

tial a

nd p

ropr

ieta

ry d

ocum

ent.

This document and all information contained herein is the sole property of AIRBUS UK LTD. No intellectual property rights are granted by the delivery of this document or the disclosure of its content. This document shall not be reproduced or disclosed to a third party without the express written consent of AIRBUS UK LTD. This document and its content shall not be used for any purpose other than that for which it is supplied.

The statements made herein do not constitute an offer. They are based on the mentioned assumptions and are expressed in good faith. Where the supporting grounds for these statements are not shown, AIRBUS UK LTD will be pleased to explain the basis thereof.