The G Project was the Earth Alliance's crash program to develop mobile suits that could be piloted by Naturals. First-generation mobile suits were too complex for Naturals to control, and could only be piloted by Coordinators. The G project began in Cosmic Era year 69 under the aegis of Admiral Lewis Halberton to produce G Weapons and reached fruition in 71. The G mobile suits eventually became known collectively as "Gundams," after the acronym for their mobile operating system - General Unilateral Neuro - Link Dispersive Automatic Maneuver.
The five mobile suits developed under the G Project were:
Several later mobile suits were derived from the G Project, all designated GAT-01 with a suffix to indicate which suit they were developed from. "A" or no suffix designates mobile suits derived from the GAT-X105 Strike Gundam, "D" designates mobile suits derived from the GAT-X102 Duel Gundam, and "E" designates mobile suits derived from the GAT-X103 Buster Gundam.
See Cosmic Era Mobile Units for detailed information about all the produced units.