What is the TR series?
Over the course of the story, several prototype machines are assigned to the Titans Test Team for testing and evaluation purposes. These trial machines are collectively referred to as the “TR series.” They include the Gundam TR-1 “Hazel,” the Bizack TR-2 “Bigwig,” the Prototype Asshimar TR-3 “Kehaar,” the TR-4 “Dandelion,” the Gaplant TR-5 “Fiver,” and the TR-6 “Woundwort.” Most of these machines have several variants or components, and the Titans Test Team is also assigned a variety of prototype and evaluation machines which are not part of the TR series.
