An apparatus comprising: a control surface and an airfoil of an aircraft, the control surface having a flexible portion comprising a flexible core and a skin adhered to the flexible core the skin having perforations filled with an elastomer to increase a flexibility of the skin , wherein the skin includes a first flexible region and a second flexible region including the perforations and a first rigid region , a second rigid region and a third rigid region adjacent to the flexible regions , the rigid regions not including the perforations so that the rigid regions are less flexible than the flexible regions ; an inboard articulating seal to extend over a gap between the third rigid region and a fourth portion of the skin adjacent the third rigid region ; an outboard articulating seal to extend over a second gap between the first rigid region and a fifth portion of the skin adjacent the first rigid region ; an inboard cap attached to the third rigid region ; an outboard cap attached to the first rigid region ; wherein the flexible core is adjacent the perforations of the skin to support the skin; and wherein each articulating seal includes first and second seals on opposing sides of the airfoil and first and second ribs , the first and second seals rotatably engaged about a hinge line , the seals fixed to the respective first and second ribs , the first rib to rotate in a first direction while the second rib remains stationary to hold the second seal over a first side of each gap, the second rib to rotate in a second direction away from the first direction while the first rib remains stationary to hold the first seal over a second side of the each gap opposite the first side of each gap. a control surface and an airfoil of an aircraft, the control surface having a flexible portion comprising a flexible core and a skin adhered to the flexible core the skin having perforations filled with an elastomer to increase a flexibility of the skin , wherein the skin includes a first flexible region and a second flexible region including the perforations and a first rigid region , a second rigid region and a third rigid region adjacent to the flexible regions , the rigid regions not including the perforations so that the rigid regions are less flexible than the flexible regions ; an inboard articulating seal to extend over a gap between the third rigid region and a fourth portion of the skin adjacent the third rigid region ; an outboard articulating seal to extend over a second gap between the first rigid region and a fifth portion of the skin adjacent the first rigid region ; an inboard cap attached to the third rigid region ; an outboard cap attached to the first rigid region ; wherein the flexible core is adjacent the perforations of the skin to support the skin; and wherein each articulating seal includes first and second seals on opposing sides of the airfoil and first and second ribs , the first and second seals rotatably engaged about a hinge line , the seals fixed to the respective first and second ribs , the first rib to rotate in a first direction while the second rib remains stationary to hold the second seal over a first side of each gap, the second rib to rotate in a second direction away from the first direction while the first rib remains stationary to hold the first seal over a second side of the each gap opposite the first side of each gap. <EOS>