The DFA-03 Dopp is a fighter aircraft developed by the Zeon forces during the One Year War, created to secure air superiority on Earth after their ground operations began. Due to the lack of a true sky in the colonies where Zeon was based, their personnel had limited knowledge of the aerodynamics necessary for developing fighter aircraft, and the development process was fraught with setbacks, relying heavily on simulated experiments and theoretical discussions. The prototype experienced multiple failures, crashing four times during flight tests. The completed Dopp has a design that differs significantly from traditional aircraft, appearing somewhat bizarre. The cockpit was designed with consideration for operation in a Minovsky particle environment, featuring a bubble design to enhance the pilot's visibility, protruding significantly from the fuselage, with the pilot boarding through an entrance at the bottom of the cockpit. The main wings are of a reverse gull wing design, resembling a gently sloping inverted V shape, and can be folded up to save space when parked. While this design offers reasonable stability, its cruising speed and climb performance are not impressive. To compensate for this, the Dopp is equipped with auxiliary thrusters in various parts of the fuselage in addition to its two main engines, which ensure agile manoeuvrability but result in high fuel consumption, severely impacting its endurance and operational range. In terms of armament, the Dopp is equipped with a Vulcan cannon and missile launchers, which provide relatively insufficient firepower compared to Mobile Suits (MS). Due to the limited air combat capabilities of the Zeon MS and their over-reliance on them, the Zeon forces were far behind the Earth Federation in fighter aircraft development, and since their descent to Earth, they have never achieved air superiority. Despite its many shortcomings, the Dopp can still effectively strike targets such as Federation warships and artiller