Dassault Aviation Evaluates Laminar Designs in Flight as part of Europe's Clean Sky Research Program

By Clean Sky And Dassault Falcon, PRNE
Tuesday, January 25, 2011

SAINT-CLOUD, France, January 26, 2011 - Dassault Aviation recently performed a successful flight test
to evaluate potential applications of a laminar wing for large business jets.
The flight was performed with a Falcon 7X at Dassault's Flight Test Center in
Istres, France. The tests are part of the "Smart Fixed Wing Aircraft", one of
the Integrated Technology Demonstrators of the European Clean Sky initiative.
Clean Sky, one of Europe's largest research initiatives ever, aims to develop
technologies for cleaner and quieter next-generation aircraft which will
enter service beyond 2020.

The flight evaluated a new infrared (IR) camera technology,
developed by FLIR, which is capable of measuring temperature gradients in
high altitude/low temperature and pressure environment. The camera measured
differences in surface temperatures between laminar and turbulent areas of
the horizontal tail plane on the Falcon 7X. While the Falcon 7X is not based
on a laminar design, at high altitudes a laminarity of up to 40% was
predicted on the upper surface of the horizontal tail. Measurements from the
IR camera placed at the top of the vertical tail were performed to provide
experimental validation.

"The results, which are still under analysis by Dassault
Aviation and ONERA, (the French national aerospace research center) do show
laminar extensions as expected," said Philippe Rostand, Future Falcon
Programs Project Manager. "The tests also permitted us to qualify new
measurements techniques and equipment that will be used in future test
flights to be flown by Dassault, Airbus and the other European partners on an
even larger scale, such as the 'smart laminar wing' that will be flight
tested in 2014 on a modified Airbus A340-300 test aircraft."

Among other aerodynamic innovations, a laminar wing offers the
largest potential for a dramatic decrease in drag. Laminar wings are
currently only used on sail planes and small business jets. Initial studies
indicate a potential 5-10% drag decrease and corresponding reduction in fuel
burn and CO2 emissions with a laminar wing design on a large aircraft.
Demonstrations and analysis on a larger scale have yet to be performed to
confirm possible efficient and safe application on larger aircraft.

Dassault Aviation previously performed a series of successful
test flights with an experimental laminar airfoil from 1986-1989 on a
modified Falcon 50. "Today, better measurement tools and production methods
are in place to implement what we've learned so that we can someday bring
these exciting findings into reality," said Rostand.

About Clean Sky

The Clean Sky initiative aims to develop cleaner and quieter
aircraft in order to establish an innovative and competitive Air Transport
System. It is built upon 6 different technical areas called Integrated
Technology Demonstrators (ITDs): Smart fixed wing aircraft; green regional
aircraft; green rotorcraft; sustainable and green engines; systems for green
operations; eco-design. In addition, the Technology Evaluator (TE) will be
used to assess the impact of all innovations from subsystem up to global
level. Clean Sky will assess, design, build and test many technological
validation vehicles that will give the industry greener, more innovative and
competitive aviation products. Clean Sky is one of the largest European
research initiatives ever, with a budget estimated at EUR1.6 billion over
seven years, of which half is contributed by the European Commission in cash
and half by the European Aeronautics industry, in kind. This public-private
partnership will speed up technological breakthroughs to be introduced in
future aircraft fleet.

About Dassault Falcon

Dassault Falcon is responsible for selling and supporting
Falcon business jets throughout the world. It is part of Dassault Aviation, a
leading aerospace company with a presence in over 70 countries across five
continents. Dassault Aviation produces the Rafale fighter jet as well as the
complete line of Falcon business jets. The company has assembly and
production plants in both France and the United States and service facilities
on multiple continents. It employs a total workforce of over 12,000. Since
the rollout of the first Falcon 20 in 1963, 2,000 Falcon jets have been
delivered to 67 countries worldwide. The family of Falcon jets currently in
production includes the tri-jets-the Falcon 900EX, 900LX, and the 7X-as well
as the twin-engine 2000LX.

    For further information, please visit www.cleansky.eu

    Or contact: Helene BARBIER, Communication Officer
    Tel: +32-2-221-81-59 helene.barbier@cleansky.eu

    Press Contacts

    Dassault Aviation (France)
    Vadim Feldzer, Tel. +33-1-47-11-44-13
    Marie-Alexandrine Munoz, Tel. +33-1-47-11-64-23

    Dassault Falcon (USA)
    Ralph Aceti, Tel. +1-201-541-45-85
    Andrew Ponzoni, Tel. +1-201-541-45-88


    Hi Res Photos are available at: www.falconphotogallery.com
    USER ID: dassault - PASSWORD: falcon

For further information, please contact: Helene BARBIER, Communication Officer, Tel: +32-2-221-81-59 helene.barbier at cleansky.eu; Press Contacts: Dassault Aviation (France), Vadim Feldzer, Tel. +33-1-47-11-44-13, Marie-Alexandrine Munoz, Tel. +33-1-47-11-64-23; Dassault Falcon (USA), Ralph Aceti, Tel. +1-201-541-45-85 , Andrew Ponzoni, Tel. +1-201-541-45-88

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