https://hpa.aeromodelling.gr/plans/details.php?image_id=319 Thu, 15 Oct 2026 16:00:44 GMT https://hpa.aeromodelling.gr/plans/data/thumbnails/13/sparrow_mk_2_gurney_flap_assembly.jpg https://hpa.aeromodelling.gr/plans/details.php?image_id=319