Technology & Combat Characteristics
The YMF-01B was born in C.E. 67 as the first practical mobile suit. It was an improved version of the first prototype mobile suit, the "ZAFT", which was said to be developed in C.E. 65 by Italian Coordinator Gian Carlo Maniani. The YMF-01B was initially called "GINN" and it served as the prototype of the first combat mobile suit, the "ZGMF-1017 GINN". To distinguish the YMF-01B from the ZGMF-1017, the word "Proto" was added to the former's name. Besides differences in the overall shape of the frame of the two machines, the Proto GINN also lacks the GINN's fin-shaped sensor array on the top of the head and has a prop in the mono-eye rail. Although a prototype machine, a reasonable number of the Proto GINN were mass-produced, and it was used in ZAFT's early military operations as well as for practice and training. The operating system of the Proto GINN was specified for Coordinators, but it could also be piloted by Naturals to a certain degree.
By the First Battle of Jachin Due, the ZGMF-1017 GINN had already become the mainstay of the ZAFT military, and the YMF-01B Proto GINN was used exclusively as a training unit for pilots. There were also many units that were sold to private companies, many of which were used as heavy machinery for work.
- The Proto GINN resembles the Universal Century's MS-05 Zaku I. Like wise the Proto-GINN's successor unit, the ZGMF-1017 GINN resembles the MS-06 Zaku II. The GINN and Zaku mobile suit lines performed similar roles in their respective timelines, as the events of the Cosmic Era were largely derived from those of the early Universal Century.