The AOS Airbus OneWeb Satellites mega constellation enabling global broadband internet, consists of 900 small satellites. AOS selected SpaceTech to develop and deliver 1800 deployment mechanisms – two on every satellite.

SpaceTech AOS Airbus OneWeb satelliteAirbus OneWeb satellite

STI development

Delivering key parts to make this project a success, SpaceTech proves its suitability for the New Space Market as a flexible and cost-efficient SME. SpaceTech was able to provide AOS with a QM development of only three months and delivered the SADM flight hardware for the pilot satellites that are already built at Airbus OneWeb Satellites (Toulouse site, France).

SpaceTech’s AOS SADMs consist of a CRFP booms and SAP launch support parts.

Testing of complete deployment sequence 

Extensive testing of the complete deployment sequence on a STI developed Zero-G robotic arm in combination with in-orbit analysis showed the robustness and reliability of the SADM. The guided deployment and the robust design ensures a safe deployment without any risk of overswinging, spring delatching.
Following figure gives an impression of the simulation visualization and the QM test setup.

SpaceTech AOS satellite deployment mechanism QM test setupSimulation of the release in comparison to QM test setup


The launch of six pilot satellites took place February 27th, 2019 and the solar arrays deployed successfully.