Design, Build & Fly (DBF) is a regular capstone design project under the Department of Mechanical Engineering at the University of Hong Kong. In the past seven years, DBF teams from HKU have participated in various competitions around the world. In previous years, HKU DBF teams have shown our passion and capabilities in each of the competitions. Coming to 2023, we are eager in maintaining high ranking by adopting revolutionary design in our flying mechanism. We get to achieve better results and strive for perfection. Under guidance of the supervisor and advisor, Prototypes with a new wing design and use of material has already built and went through flight tests successfully at Hong Kong Model Engineering Club.