A wing (no flap) with a symmetric airfoil cross-section is constructed using aluminum (E = 10 x 10⁶ lb/in²) stringers and a thin skin. Five large square stringers (A = 0.4 in², I = 0.013 in⁴) and two small square stringers (A= 0.20 in², I = 0.003 in⁴) are used in the wing construction.