Our airplane was built using lightweight materials including styrofoam, paper, wooden dowels, and other small components. During the design process, we focused on keeping the plane balanced by considering both the center of gravity and the center of pressure. After testing, we found that the front of the plane was too heavy, so we adjusted the weight distribution to improve its balance and stability. These changes helped the plane glide more smoothly and increased its overall flight performance.

The propeller is powered by a rubber band that stores energy when it is wound up. As the rubber band unwinds, it spins the propeller and helps propel the airplane forward. We used a straw as a guide so the propeller shaft could rotate freely while staying in position. Paper clips were attached to secure and extend the rubber band, allowing it to be stretched and wound more effectively. This simple mechanism converts the stored elastic energy in the rubber band into the motion of the propeller.