Unmanned Aircraft (PTTA) or Unmanned Aerial Vehicle (UAV) is an aircraft that flies without a pilot and is controlled automatically. UAVs have a wide range of applications, including remote sensing, communication links, and natural disaster monitoring. One type of UAV being developed is LSU 05, using a composite of carbon fiber (CFRP) and glass fiber (GFRP) for its wing structure. This study aims to create a 3D model of the UAV VTOL wing, analyze the effect of material variations on the strength of the wing structure, and find the optimal wing design using the finite element analysis method. This study uses the SolidWorks 2021 software with maneuver conditions loading. The results of the analysis show that carbon fiber provides higher strength than fiberglass. In a fiberglass wing, the maximum stress is 229 MPa, while in a carbon fiber wing it is 197 MPa. The biggest displacement occurred in the fiberglass wing, which was 2.661 mm. The safety factor of the carbon fiber wing is 2.7, while that of the fiberglass is 1.9. This research provides an in-depth understanding of the behavior of VTOL UAV wing structures and contributes to the development of better wing designs. The optimized design can increase the performance, efficiency and reliability of VTOL UAV.

<span><em>The foundation of the raft post is the bottom structure of a building that channeled the load from the structure </em><span><em>over the soil under it. Carrying capacity of drill pile foundation is influenced by the capacity of the pole tip</em><br /><span><em>and bearing capacity of the pole blanket. The decline in this area can be an immediate decline and a </em><span><em>decrease in consolidation. This study aims to analyze the decrease of raft poles and the proportion of load </em><span><em>bearing in the bogie area of the Kelapa Gading LRT warehouse depot - Jakarta. From the analysis of the</em><br /><span><em>NSPT test results in the field, the ultimate carrying capacity and the decrease that occurred on the raft poles </em><span><em>were obtained. Based on the results of calculation of the ultimate carrying capacity of a single drill pole of </em><span><em>1.1 x 104 kN and the carrying capacity of the group is 1.1 x 108 kN. Calculation of group efficiency with the </em><span><em>Feld method is obtained at a value of 0.588. In the calculation of the immediate decline of the pole, a value of </em><span><em>5 cm is obtained and a decrease in consolidation of 7 cm. From the calculation of the proportion of raft pole</em><br /><span><em>load bearing the value of Pr = 6 x 10-6 is obtained, which means that load bearing can be said to be </em><span><em>dominated by rafts.</em></span></span></span></span></span></span></span></span></span></span></span><br /><br class="Apple-interchange-newline" /></span>