Selbstrastende Flügelsicherun Graupner 590 For fuselages up to about 120 mm wide. This three-part wing retainer system consists of two special bolts which are mounted in the left-hand and right-hand wing roots, and a centre section into which the bolts engage when you plug in the wings. Both wing panels are automatically held tightly in place. To remove the wings, the bolts are disengaged at the centre section.
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