A nacelle inlet, comprising an active laminar flow control arrangement, and further comprising: an outer skin (312, 512) having a first hat stiffener (340a, 540a) and a second hat stiffener (340b, 540b) spaced apart along an inner surface (314, 514) of the outer skin (312, 512) and a first stringer and a second stringer circumferentially spaced apart and extending longitudinally along the inner surface (314, 514) of the outer skin (312, 512), the first stringer and the second stringer are oriented substantially orthogonal with respect to the first hat stiffener (340a, 540a) and the second hat stiffener (340b, 540b), the first hat stiffener (340a, 540a) and the second hat stiffener (340b, 540b) extending between the first stringer and the second stringer; a first frame (322a, 522a) coupled to the inner surface (314, 514) and disposed between the first hat stiffener (340a, 540a) and the second hat stiffener (340b, 540b), a second frame (322b, 522b) coupled to the inner surface (314, 514) and disposed between the first hat stiffener (340a, 540a) and the second hat stiffener (340b, 540b), the first frame (322a, 522a) and the second frame (322b, 522b) oriented substantially parallel with respect to the first hat stiffener (340a, 540a) and the second hat stiffener (340b, 540b); a first cover panel (324a, 524a) coupled between the first frame (322a, 522a) and the first hat stiffener (240a, 540a); a second cover panel (324c, 524c) coupled between the second frame (322b, 522b) and the second hat stiffener (340b, 540b); a third cover panel (324b, 524b) coupled between the first cover panel (324a, 524a) and the second cover panel (324c, 524c); a first plenum (325a, 525a) defined circumferentially between the first stringer and the second stringer, radially between the inner surface (314, 514) and the first cover panel (324a, 524a), and longitudinally between the first hat stiffener (340a, 540a) and the first cover panel (324a, 524a), and at least partially defined by the first frame (322a, 522a); a second plenum (325b, 525b) defined circumferentially between the first stringer and the second stringer, radially between the inner surface (314, 514) and the third cover panel (324b, 524b), and longitudinally between the first cover panel (324a, 524a) and the second cover panel (324c, 524c), and at least partially defined by the first frame (322a, 522a) and the second frame (322b, 522b); and a third plenum (325c, 525c) at least partially defined by the second frame (322b, 522b) and the second hat stiffener (340b, 540b), and enclosed by the second cover panel (324c, 524c); wherein at least one of the first cover panel (324a, 524a), the second cover panel (324c, 524c), and the third cover panel (324b, 524b) extend from the first stringer to the second stringer. an outer skin (312, 512) having a first hat stiffener (340a, 540a) and a second hat stiffener (340b, 540b) spaced apart along an inner surface (314, 514) of the outer skin (312, 512) and a first stringer and a second stringer circumferentially spaced apart and extending longitudinally along the inner surface (314, 514) of the outer skin (312, 512), the first stringer and the second stringer are oriented substantially orthogonal with respect to the first hat stiffener (340a, 540a) and the second hat stiffener (340b, 540b), the first hat stiffener (340a, 540a) and the second hat stiffener (340b, 540b) extending between the first stringer and the second stringer; a first frame (322a, 522a) coupled to the inner surface (314, 514) and disposed between the first hat stiffener (340a, 540a) and the second hat stiffener (340b, 540b), a second frame (322b, 522b) coupled to the inner surface (314, 514) and disposed between the first hat stiffener (340a, 540a) and the second hat stiffener (340b, 540b), the first frame (322a, 522a) and the second frame (322b, 522b) oriented substantially parallel with respect to the first hat stiffener (340a, 540a) and the second hat stiffener (340b, 540b); a first cover panel (324a, 524a) coupled between the first frame (322a, 522a) and the first hat stiffener (240a, 540a); a second cover panel (324c, 524c) coupled between the second frame (322b, 522b) and the second hat stiffener (340b, 540b); a third cover panel (324b, 524b) coupled between the first cover panel (324a, 524a) and the second cover panel (324c, 524c); a first plenum (325a, 525a) defined circumferentially between the first stringer and the second stringer, radially between the inner surface (314, 514) and the first cover panel (324a, 524a), and longitudinally between the first hat stiffener (340a, 540a) and the first cover panel (324a, 524a), and at least partially defined by the first frame (322a, 522a); a second plenum (325b, 525b) defined circumferentially between the first stringer and the second stringer, radially between the inner surface (314, 514) and the third cover panel (324b, 524b), and longitudinally between the first cover panel (324a, 524a) and the second cover panel (324c, 524c), and at least partially defined by the first frame (322a, 522a) and the second frame (322b, 522b); and a third plenum (325c, 525c) at least partially defined by the second frame (322b, 522b) and the second hat stiffener (340b, 540b), and enclosed by the second cover panel (324c, 524c); wherein at least one of the first cover panel (324a, 524a), the second cover panel (324c, 524c), and the third cover panel (324b, 524b) extend from the first stringer to the second stringer.