American Institute of Aeronautics and Astronautics (AIAA) Design/Build/Fly Michael R. Lau, Jocelyn Pedroza Mentor: Robert Liebeck The Design/Build/Fly (DBF) contest is an annual, international, electric radio-controlled aircraft competition, hosted by the American Institute of Aeronautics and Astronautics (AIAA). As a team, the University of California, Irvine Design/Build/Fly team must design, manufacture, and demonstrate the flight capabilities of an aircraft that can best meet the specified mission rules within a six month time period and document the entire design process within a written report. The competition provides real- world aircraft design experience for UC Irvine engineering students by giving us the opportunity to validate our analytical studies through practical application. The challenges posed by this year’s competition included flying with a 5lb. payload and dropping payloads while in flight. The UC Irvine plane design features a conventional plane configuration and utilizes composites and extensive balsa work to reduce weight. This year the team was able to integrate molding into various components throughout the plane, adding to the repertoire of manufacturing techniques the team uses. The controls of the plane were coupled in sequence to minimize the number of actuators, which was a heavily weighted element used in the competition scoring. The UC Irvine DBF team received a high flight score and written report score, placing second out of 100 teams, continuing a four-year streak of placing in the top two. In the future, the UC Irvine DBF team hopes to continue improving the plane design, manufacturing techniques, and continue performing well in competition.