13. February 2021
The upper stage of Europe's new launcher comes to Baden-Württemberg

Ar­i­ane 6 – DLR ready to test first up­per stage

Hanging in there
Hang­ing in there
Image 1/4, Credit: © DLR. All rights reserved

Hanging in there

The con­tain­er car­ry­ing the up­per stage of Ar­i­ane 6 launch­er is un­load­ed in Bad Wimpfen.
Base on wheels
Base on wheels
Image 2/4, Credit: © DLR. All rights reserved

Base on wheels

To en­sure that ev­ery­thing rolls prop­er­ly, the con­tain­er has its own mo­bile base.
First transport by ship
First trans­port by ship
Image 3/4, Credit: © DLR. All rights reserved

First transport by ship

This is the first time that such valu­able car­go has been trans­port­ed by a barge from Bre­men to Bad Wimpfen.
Special construction for the journey
Spe­cial con­struc­tion for the jour­ney
Image 4/4, Credit: © DLR. All rights reserved

Special construction for the journey

As a heavy load trans­porter, the con­tain­er car­ry­ing the up­per stage must make its way to DLR Lam­pold­shausen dur­ing the night.
  • The upper stage of the Ariane 6 launcher will arrive at DLR's Lampoldshausen site on 14 February 2021.
  • The site has test facilities for the qualification of engines, individual launch vehicle components and complete cryogenic upper stages.
  • At the P5.2 test rig, the upper stage will undergo a test programme lasting several months as qualification for its first planned flight in 2022.
  • Focus: Space

On 14 February 2021, the German Aerospace Center (Deutsches Zentrum für Luft- und Raumfahrt; DLR) will receive the first upper stage of the European Ariane 6 launcher. The fully functional test module will be subjected to extensive testing at DLR's Lampoldshausen site over the coming months. The aim is to verify that the rocket's upper stage is fit for flight – a major milestone on the way to its first launch, which is planned for the second quarter of 2022.

After being manufactured at the ArianeGroup factory in Bremen, on 29 January 2021 the upper stage was dispatched in a specially designed container. With the upper stage inside, the container weighed approximately 57 tonnes. It is roughly 14 metres long, seven metres wide and six metres high. Its journey has been split into several stages – being carried by ship then by heavy transporter – via the Weser, Hunte, Ems and Ijsel rivers, then the Rhine and Neckar rivers, before reaching its final destination of Lampoldshausen, near Heilbronn.

Unique, flexible and efficient – DLR's infrastructure and expertise for future space transport systems

"By launching its test campaign for the upper stage of the future European launcher, Ariane 6, DLR is demonstrating its scientific and technological expertise in space research," says Professor Anke Kaysser-Pyzalla, Chair of the DLR Executive Board. "Our new P5.2 test rig meets the requirements of modern space transport; it is cost effective and can be quickly adapted. We are harnessing the potential of flexible testing facilities and working alongside industry to lay the groundwork for the future of European space transport."

"Thanks to its test facilities, DLR is able to validate not only engines and individual launcher components, but also entire cryogenic upper stages," says Hansjörg Dittus, Member of the DLR Executive Board for Space Research and Technology.

Refuelling and hot-firing tests during test campaign lasting several months

Following the arrival of the upper stage, it will be integrated into the new P5.2 test rig. The launcher will be lifted by a crane, hung on the test rig and fastened in place. The upper stage measures 5.4 metres across and is more than 10 metres high. It weighs approximately seven tonnes without fuel, but 38 tonnes once fuel has been added.

P5.2 was specially designed and constructed by DLR for the purpose of testing the upper stage of Ariane 6. The upper stage consists of the Vinci engine, which can be ignited multiple times, the tanks for the liquid hydrogen and liquid oxygen, piping, valves and the electronic and hydraulic control and steering systems.

Cryogenic upper stage – low temperatures, major challenges

Lasting several months, the test campaign will involve a clean fuelling and defuelling test and four 'hot-firing' tests. In the fuelling and defuelling test, the focus will be on filling and emptying the tank safely. The test is designed to build experience and facilitate the development of safe methods for carrying out such processes but also for aborting them if necessary. The fact that this is a cryogenic upper stage makes this no simple task. The hydrogen and oxygen that serve as the fuel must be cooled to extremely low temperatures –minus 183 and minus 253 degrees Celsius respectively. These temperatures require the use of specialist materials that must be handled very carefully. Ariane 6’s Vinci engine is ignited up to three times during the hot-firing tests – which simulate different flight scenarios – with the thrust and duration of the ignition varying from test to test. With this flexibility, Ariane 6 will be able to deploy its payloads in different orbits.

"With the P5.2 test rig and the test programme for the Ariane 6 upper stage, DLR has all the test facilities it needs in Lampoldshausen to comprehensively test all the space engines that Europe will require in the future," says Stefan Schlechtriem, Director of the DLR Institute of Space Propulsion, describing the unique test rig. "In addition, new development programmes and standardised acceptance tests of Ariane flight engines can take place in parallel. This makes it the most flexible and efficient test centre for rocket engines in Europe."

About the Ariane 6 programme

The upper stage is part of the Ariane 6 programme of the European Space Agency (ESA), whose German participation is managed by the German Space Agency at DLR. As prime contractor, ArianeGroup is responsible for the development and construction of the entire launcher, which it carries out in cooperation with industrial partners. ArianeGroup’s subsidiary, Arianespace, is responsible for marketing the launcher system. The French space agency, CNES, is responsible for constructing the launch site in Kourou, French Guiana, and for the tests carried out there.

  • Andreas Schütz
    DLR Spokesper­son, Head of Me­dia Re­la­tions
    Ger­man Aerospace Cen­ter (DLR)

    Com­mu­ni­ca­tions and Me­dia Re­la­tions
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  • Denise Nüssle
    Ger­man Aerospace Cen­ter (DLR)

    Com­mu­ni­ca­tions and Me­dia Re­la­tions
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  • Anja Kaboth
    Cor­po­rate Com­mu­ni­ca­tions Lam­pold­shausen
    Ger­man Aerospace Cen­ter (DLR)

    Com­mu­ni­ca­tions and Me­dia Re­la­tions
    Telephone: +49 6298 28-201
    Fax: +49 6298 28-112
    Im Langen Grund
    74239 Hardthausen


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