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20th November 2019, The Hague

Airborne delivers final XL substrate panels to Airbus

The Airborne team delivers final XL substrate panels for the JUICE mission. © Airborne

The Airborne team delivers final XL substrate panels for the JUICE mission. © Airborne

For the solar array of ESA’s JUICE mission to Jupiter, Airborne delivered the last four out of 10 XL substrate panels to Airbus Defence and Space Netherlands.

As timing is critical for the interplanetary spacecraft to be put on the right trajectory enabling gravity-assist flybys after its launch in 2022, the delivery of the XL panels is crucial in order for the solar array to be readied according to schedule. Given extreme distance from the Sun, the JUICE spacecraft asked for an exceptionally large solar array in order to generate sufficient power.

As market leader in the manufacturing of solar array substrate panels in Europe, Airborne was selected by Airbus Defence and Space Netherlands to develop and manufacture the XL substrate panels for JUICE’s solar array. With a total surface area of 85 m2 the satellite will be equipped with the largest solar array ever flown on an interplanetary mission.

Supersizing expertise

Airborne’s specific expertise was required to produce the substrate panels for the solar panels with a surface area of almost 9 m2 per panel – the largest units manufactured by Airborne to date. To enable production Airborne modified the manufacturing equipment, including extending the maximum inside diameter of the autoclave from 2.6 to 2.9 metres. Combined with a length of 13 metres, the extended autoclave enables Airborne to produce more XL size panels for aerospace customers.

“JUICE is a great example of what we can do in terms of state-of-the-art substrate panel technology for solar arrays of extremely demanding space missions. Building on this position we are determined to move forward in the domain of affordable space panels for new space. Combining our knowledge on high end substrates with our capabilities in the domain of industrialisation of composites will allow us to provide the new space market with high performance, yet radically affordable solutions in high volumes,” said Arno van Mourik, CEO of Airborne.

Extreme conditions

JUICE’s solar array is built with the new ARA Mk4 technology, which has been developed and qualified by Airbus Defence and Space Netherlands in close cooperation with Airborne. Airbus’ ARA Mk4 technology allows for 20% cost reduction and increases the robustness of the solar array by expanding the temperature range and adding stiffness. As the satellite will be exposed to extreme conditions during the full length of the mission, the panels need to withstand temperatures as low as -240 degrees C, as well as space radiation.

The extreme temperatures to which the satellite will be exposed near Jupiter made additional qualification necessary on the panel design and its interfaces. Airborne manufactured 160 qualification test samples and two full-size panels which were delivered in January 2017. After an intensive testing campaign by Airbus Defence and Space Netherland, Airborne manufactured a total of 10 substrate panels. The last four panels were completed in October 2019 – on time for the next step in the manufacturing process of JUICE’s solar array.

www.airborne.com

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