This volume contains the proceedings of UAV-MMNT 03 workshop held in Sydney, Australia, entitled "Multidisciplinary Methods and Numerical Tools for UAV Design Applications". This workshop brought together invited leading experts in the relatively new field of UAVs (Unmanned Aerial Vehicles), to deliver lectures on advanced multidisciplinary design methods and numerical tools for UAV applications. This book covers theoretical, numerical and experimental aspects, as well as practical applications. The topics of the papers include Aerodynamics, Electromagnetics, Guidance and Control as well as Propulsion and Energy Management. This research promotes the advanced technologies necessary for continued development in the field of UAV design applications.