Since 2012, I was participating in the competitions every year held by American Institute of Aeronautics and Astronautics, called Cessna/Raytheon Missile Systems Student Design/Build/Fly Competition. In the competitions, we had to design a model aircraft according to the requirements. Simulation were done to validate our design and then we fabricated the airplane to fulfill the requirements of competition. As a lead engineer, I had to decide and determine each parameter by discussing with teammates and led them towards the best solutions. I found great joy throughout the exploration of aircraft design and I have gained lots of leadership experience.