The RGM is a series of mobile suits used by the Earth Federation from UC 0079 till around UC 0200, and typically serve as the organization's main machine. With a few exceptions, the numerals in the model code of the RGM series generally indicate the year of deployment. The series was initially developed by the Earth Federation itself, but Anaheim Electronics took over development in the late UC 0080s.
Introduced during the One Year War, the RGM-79 GM (pronounced Jim) was developed using the combat data of RX-78-2 Gundam, and was the first mass production mobile suit deployed by the Earth Federations Forces. Prior to its deployment, Earth Federation produced in limited numbers the RGM-79［G］ GM Ground Type and the RGM-79［E］ GM Early Type for ground and space-use respectively. Usable in both Earth and space, the GM's basic frame has a fairly high level of mobility for the time, and is easily adaptable to modifications into mission specific units. The GM's armor uses titanium alloy, a sturdy metal that could be refined more quickly and easily than the Gundam's Gundarium Alloy, but also less durable and slightly lighter.
- RGM-79F Land Combat Type GM
- RGM-79D GM Cold Climate Type
- RGM-79G GM Command
- RGM-79GS GM Command Space Type
- RGM-79L GM Light Armor
- RGM-79SC GM Sniper Custom
- RGM-79U GM Sloep
- RGM-79V GM Night Seeker
- RGM-79［G］ GM Ground Type
- RGM-79［E］ GM Early Type
- RGM-79C GM Type C
- RGM-79EW EWAC GM
- RGM-79SR GM Sniper III
- RGM-79FP GM Striker
- RGM-79N GM Custom
- RGM-79Q GM Quel
- RGM-79ARA GM Juggler
- RAG-79 Aqua GM
Also given the model number RGM-79R, the GM II was the successor of the RGM-79 GM, but its performance was only slightly improved, and some units were retrofitted GMs.
Compared to its predecessor, the GM II, the GM III represent a giant leap in terms of performance, armor and armaments. The suit's overall frame was strengthened, and its mobility and speed were improved thanks to a backpack with higher output and additional verniers on the legs. The suit's armor was enhanced via the addition of Gundarium Alloy, and it could carry more weapons than the GM II.
Anaheim's RGM models
With the dissolution of Titans at the end of Gryps Conflict, the EFF commissioned Anaheim to convert the remaining RMS-154 Barzam into a machine more suitable for their use. The Bar-GM was subsequently put into limited mass production.
Despite being the prototype of the RGM-89 Jegan, the Jeddah was put into limited production alongside the Jegan as the Earth Federation could not produce sufficient number of the latter.
The Jegan was designed to be lighter and more maneuverable than previous GM units. Its design focused more on being easy to use, easy to maintain, and its parts could be quickly and cheaply replaced. The Jegan remained in service for many years, and received multiple periodic technological upgrades, producing multiple variants.
- RGM-89 Jegan (Burnham Corps)
- RGM-89A2 Jegan Type-A2 (GR)
- RGM-89B Jegan Kai
- RGM-89D Jegan D Type
- RGM-89J Jegan Normal Type
- RGM-89S Prototype Stark Jegan
- RGM-89ST-2 ST-Gun
- RGM-89T Jegan
RGM-90 Jeddah Improve Type and RGM-91S Jegan Enhanced Armor Type
These units were limited production machines created by Anaheim to improve the Jegan and the Jeddah. The RGM-90 Jeddah Improve Type was a ground combat mobile suit that was delivered to Federation bases on Earth. The RGM-91S Jegan Enhanced Armor Type was a high-performance mobile suit, featuring powerful engines and added Gundarium armor.
The Jesta is a high-performance special operations mobile suit developed by Anaheim Electronic as part of the UC Project, and was meant to serve as escort units for the RX-0 Unicorn Gundam. It was fitted with a backpack capable of tremendous thrust, allowing it to surpass most Federation's mobile suits of its time.
The Heavygun represented a new age of mobile suits, being the first miniature mobile suit to be mass produced. Its smaller size and reduced weight made the Heavygun highly efficient, as well as faster and more maneuverable than previous mobile suits. It was also cheaper to produce. Since the Heavygun remained in service with the Federation for an extended number of years, it would see combat with the mobile suits of the Crossbone Vanguard, which were more technologically advanced and had greater performance.
The Hardygun was developed as a part of the Silhouette Formula Project, using plans and technical data stolen by SNRI. Compared to the G-Cannon, which was being developed around the same time, the Hardygun had higher output reactor and higher combat capabilities.
- RGM-111 type B.T. Hardygun Blitzkrieg
- RGM-111 type NR Hardygun Night Raid
- RGM-111G Hardygun Close Combat Type
- RGM-111R Hardygun Reconnaissance Type
The Jamesgun was a mass-produced mobile suit, developed as the successor of the Heavygun. Mainly deployed on the ground, it was used in large numbers by the Earth Federation. Like its predecessors, the suit was used for an extended number of years, and was involved in the battles against the Jupiter Empire and Zanscare Empire, enemies that deployed more technologically advanced mobile suits.
The Javelin was a space-use MS developed from the Jamesgun. It was equipped with various thrusters that improve its mobility, and has a backpack with a pair of shot lancers that were inspired by similar weapons used by the Crossbone Vanguard. It was used in the conflict againts Zanscare Empire. In the Mobile Suit Victory Gundam novels' continuity, it was replaced by a newer RGM-147 mobile suit.
- RGM-122 Javelin Prototype
- RGM-122 Javelin Early Type
- RGM-122 Javelin Mega Spear Loading Type
- RGM-122C Javelin Cannon
The Freedom was a mass-produced mobile suit used by the Earth Federation before it was dissolved. A modified variant served as the prototype of the F-SAVIOUR F-Saviour, an early unit of the Illuminati's Saviour line of mobile suits.
The RGC series was developed at the end of One Year War from the RGM series to create a mass-produced line of mid-range artillery mobile suits.
- RGC-80 Prototype GM Cannon
- RGC-80 GM Cannon
- RGC-83 GM Cannon II
- RGC-90 Jegan Heavy Armor Type
The TGM series (the T standing for "Training") were created by the Federation for training mobile suit pilots. These mobile suits have a two seater cockpit to fit an instructor and a pilot trainee.