. 24/7 Space News .
Largest Communications Satellite Ever Built Launched Into Orbit

Liftoff for Flight 166, an Ariane 5G, 11 August 2005.
Paris, France (SPX) Aug 12, 2005
Today an Ariane 5G, a 'standard' version of the launcher, successfully launched into orbit the largest communications satellite ever built, Thaicom 4 (IPstar), weighing 6.5 tonnes.

"With this successful launch, Ariane 5 has set a world record and once again proved its outstanding performance," said Evert Dudok, President of EADS SPACE Transportation. 'We can be proud of this success, which is the result of the great efforts made by all EADS-ST teams and industry partners,' said Hugues Laporte-Weywada, Director of Launchers at EADS SPACE Transportation.

EADS SPACE Transportation has extensive expertise, unrivalled in Europe, as prime contractor for large-scale space programmes.

Demonstrating its ability to lead a team of companies offering the wide range of skills and expertise required to design and develop complex projects such as Ariane 5, the company supplies all elements of the launch vehicle, including the stages, equipment bay and flight software, as well as numerous sub-assemblies.

Ariane 5's solid-propellant boosters (EAPs) are manufactured and integrated by EADS SPACE Transportation at the launch site in French Guiana.

The EAPs are ignited seven seconds after the main cryogenic stage (EPC) Vulcain engine and burn for about 130 seconds, delivering the main thrust at lift-off of up to 540 tonnes. EADS SPACE Transportation's Les Mureaux facility near Paris produces and integrates the EPCs.

After jettison of the EAPs at an altitude of about 65 kilometres, the launcher's sole propulsion for a flight phase of 600 seconds is delivered by the Vulcain engine, providing a thrust of about 110 tonnes, the essential part of the impulse needed for insertion into orbit.

The thrust chamber of the Vulcain engine was developed by EADS SPACE Transportation in Ottobrunn near Munich, and the necessary engine tests are also carried out in Germany, at Lampoldshausen near Heilbronn.

EADS SPACE Transportation is Europe's centre of competence for the development and construction of Ariane upper stages at its sites in Bremen and Ottobrunn.

The upper stage of Ariane 5 is designed to transport a payload to its target orbit following separation from the first stage, after which the upper stage is fully automatic and releases its payload on its way to geostationary orbit at an altitude of 36,000 kilometres.

During today's mission, the Thaicom 4 (IPstar) satellite was inserted into transfer orbit at an altitude of 1,896 kilometres.

Related Links
EADS SPACE
SpaceDaily
Search SpaceDaily
Subscribe To SpaceDaily Express

Sea Launch wins Multiple Launch Award with PanAmSat
Long Beach CA (SPX) Jul 29, 2005
The Sea Launch Company announces that PanAmSat has selected the Sea Launch system for the launch of two new spacecraft in 2006 and 2007.



Thanks for being here;
We need your help. The SpaceDaily news network continues to grow but revenues have never been harder to maintain.

With the rise of Ad Blockers, and Facebook - our traditional revenue sources via quality network advertising continues to decline. And unlike so many other news sites, we don't have a paywall - with those annoying usernames and passwords.

Our news coverage takes time and effort to publish 365 days a year.

If you find our news sites informative and useful then please consider becoming a regular supporter or for now make a one off contribution.
SpaceDaily Contributor
$5 Billed Once


credit card or paypal
SpaceDaily Monthly Supporter
$5 Billed Monthly


paypal only














The content herein, unless otherwise known to be public domain, are Copyright 1995-2016 - Space Media Network. All websites are published in Australia and are solely subject to Australian law and governed by Fair Use principals for news reporting and research purposes. AFP, UPI and IANS news wire stories are copyright Agence France-Presse, United Press International and Indo-Asia News Service. ESA news reports are copyright European Space Agency. All NASA sourced material is public domain. Additional copyrights may apply in whole or part to other bona fide parties. Advertising does not imply endorsement, agreement or approval of any opinions, statements or information provided by Space Media Network on any Web page published or hosted by Space Media Network. Privacy Statement All images and articles appearing on Space Media Network have been edited or digitally altered in some way. Any requests to remove copyright material will be acted upon in a timely and appropriate manner. Any attempt to extort money from Space Media Network will be ignored and reported to Australian Law Enforcement Agencies as a potential case of financial fraud involving the use of a telephonic carriage device or postal service.