<![CDATA[Pada PUNA Pasopati, sayap merupakan bagian penting untuk menghasilkan gaya angkat. Namun, besarnya gaya angkat harus mampu ditahan oleh struktur sayap. Oleh karena itu, tujuan penelitian ini adalah untuk mengetahui material dan ketebalan struktur spar, ribs, dan front reinformence leading edge yang paling optimal pada sayap PUNA Pasopati. Penelitian ini melakukan uji statik pada struktur sayap dengan konstruksi skin, front reinforcement leading edge, ribs, dan spar menggunakan metode elemen hingga. Uji statik dilakukan dengan variasi material dan ketebalan pada struktur spar, ribs, dan front reinforcement leading edge. Pada variasi material, carbon fiber reinforced plastic lebih kuat dibandingkan plywood. Perpindahan pada sayap dengan material carbon fiber reinforced plastic lebih kecil 61,03% daripada plywood, tetapi sayap dengan material plywood mempunyai berat 68,43% lebih ringan dibandingkan carbon fiber reinforced plastic. Namun, pada material plywood mendapatkan nilai safety factor 1,15 yang berarti dibawah limit nilai safety factor yaitu 1,5. Dengan demikian, sayap dengan material carbon fiber reinforced plastic untuk PUNA Pasopati lebih optimal dibandingkan plywood. Semakin tinggi ketebalan pada struktur ribs, spar, front reinforcement leading edge, maka perpindahan dan stress pada sayap semakin kecil. Walaupun ketebalan 1 mm memiliki nilai perpindah dan stress yang paling tinggi tetapi masih mempunyai nilai safety factor diatas limit. Dengan demikian, ketebalan 1 mm merupakan yang paling optimal. In PUNA Pasopati, the wing is an important part to generate lift. However, the magnitude of the lift force must be able to be resisted by the wing structure. Therefore, the purpose of this study is to determine the most optimal material and thickness of the spar structure, ribs, and front reinformence leading edge on the PUNA Pasopati wing. This research conducted static tests on the wing structure with skin construction, front reinforcement leading edge, ribs, and spars using the finite element method. static tests were conducted with material and thickness variations on the spar, ribs, and front reinforcement leading edge structures. In material variations, carbon fiber reinforced plastic is stronger than plywood. Displacement on the wing with carbon fiber reinforced plastic material is 61.03% smaller than plywood, but the wing with plywood material weighs 68.43% lighter than carbon fiber reinforced plastic. However, the plywood material gets a safety factor value of 1.15 which means below the limit of the safety factor value of 1.5. Thus, the wing with carbon fiber reinforced plastic material for PUNA Pasopati is more optimal than plywood. The higher the thickness of the ribs, spar, front reinforcement leading edge structure, the smaller the displacement and stress on the wing. Although the 1 mm thickness has the highest displacement and stress values, it still has a safety factor value above the limit. Thus, a thickness of 1 mm is the most optimal.]]>
