Galileo solar arrays being inspected in the Dutch Space cleanroom. The panels received from Ottobrunn in Germany are integrated together with the mechanisms, typically sourced from local Dutch companies assembled and tested by Dutch Space, into complete solar array wings. The completed wings are then suspended on specially weighted deployment rigs, to compensate for the presence of gravity the 29 kg wings are not designed to endure. Here alignment testing is performed, to check the wings will unfold in a straight line as planned.