The RX-77-2 Guncannon was a prototype artillery mobile suit developed by the Earth Federation.
It was part of the Federation’s top-secret Project V, a programme initiated to research and build mobile weapons.
The Earth Federation begun the secret Project V to develop mobile weapons four years prior to the One Year War, after it received intelligence reports of the mobile suits that the Principality of Zeon was building.
The prototype RX-77-1A Guncannon A was the early concept that led to the production of the RX-77-2 Guncannon. Its heavier armour made it less mobile than its successor.
The initial number of Guncannons built was unknown. Only one of the units stationed in the Federation’s research base in the colony Side 7 survived when Zeon forces attacked the base. This Guncannon unit served on the assault carrier White Base as a support unit until the end of the war. It was piloted by Kai Shiden.
When the RX-75-4 Guntank was decommissioned at Jaburo, the headquarters of the Federation Forces, another Guncannon unit, C-109, was added to White Base’s mobile suit complement. To differentiate between the first and the new units, they were designated C-108 and C-109 respectively. The new unit was piloted by Hayato Kobayashi.
This made the Gunannon the only model from Project V to have more than one units in active service. Both units were heavily damaged in the battle at Zeon’s space fortress A Baoa Qu. After the war, Unit C-108 was put on display in the Kennedy Space Museum.
RX-77-2 Guncannon Gundam Evolve version
The Federation rolled out a mass production version of the Guncannon, the RX-77D Guncannon Mass Production Type.
The Guncannon was eventually succeeded by the RX-77-4 Guncannon II.
Unlike RX-75-4 Guntank, the first unit to emerge from Project V, the RX-77-2 Guncannon was a true mobile suit with a humanoid frame, as opposed to the former’s design that was a fusion of a mobile suit and a tank. The Guncannon was designed to function as a mid-range support unit.
Like the other units from Project V, the Guncannon used the Core Block System that allowed the separation of the Core Block from the upper torso to function as an FF-X7 Core Fighter. This was utilised as an escape system for the pilot.
RX-77-2 Guncannon Gundam Evolve version
Unlke its predecessor the RX-77-1A Guncannon A, the Guncannon was less heavily armoured and thus had better mobility. However, it had poorer mobility than the RX-78-2 Gundam as it was more heavily armoured. The additional armour was ineffective against beam weapons and heavy armaments.
The Guncannon was one of the first mobile weapons to be equipped with an energy cap-based beam rifle and head-mounted vulcan canons. While the vulcan cannons made the Guncannon better than the Guntank in close-ranged combat, the Guncannon was still at a disadvantage due to a lack of melee weapons.
The standard weapons used by the Guncannon were a ranged weapon, medium-range artillery cannons and hand grenades. It could also mount spray missile launchers in place of the cannons.
60 mm vulcan guns
A pair of fire-linked 60 mm gatling vulcan guns were mounted on either sides of the Guncannon’s head. This was an improvement from the Guntank, which lacked proper short-ranged weapons.
RX-77-2 Guncannon head
Each vulcan gun was loaded with 400 rounds of ammunition and fired at a rate of 1,600 rounds per minute. It was used primarily against light-armoured support units. Sustained fire from the guns could damage mobile suits and were often used in close distance combat.
240 mm artillery cannons
A 240 mm mid-range artillery cannon was mounted over each shoulder of the Guncannon. Each cannon drew ammunitions from a 20 round internal magazine. The limited ammunitions meant that the pilot had to use the cannons wisely.
RX-77-2 Guncannon artillery cannon
The artillery shells measured 240 by 800 mm and carried a 95 kg high explosive fragmentation warhead with a casualty radius of 40 metres. These cannons had a firing range of up to 2.5 kilometres.
Spray missile launchers
The artillery cannons could be replaced with spray missile launchers depending on the requirements of the mission. Each launcher consisted of twelve tubes and each tube carried two missiles.
RX-77-2 Guncannon with spray missile launchers mounted
The launchers were usually equipped in missions where the Guncannon had to provide support at a closer distance.
The Guncannon was one of the first mobile weapons to use an energy cap-based beam rifle. The Bauva*XBR-L (Bauva eXperimental Beam Rifle – Long range) beam rifle was larger and more powerful mega particle armament compared to the [beam spray gun] used by the RX-78-2 Gundam. Its beam bolts were able to penetrate medium and heavy armour.
BAUVA·XBR-L beam rifle
The beam rifle was powered by an internal energy cap with an average charge of fifteen rounds. It had a maximum effective range of 2.8 kilometres.
BAUVA·XBR-L beam rifle
The Guncannon had two high explosive dual purpose fragmentation hand grenades stored within a compartment in each lower leg. Upon removal from the hatch, the grenade was armed and would detonate within five to seven seconds.
The average throwing distance of the grenade was about 300 metres.
- Ryu Jose
- Kai Shiden
- Hayato Kobayashi
- Amuro Ray
- Bork Cry
- Job John
- Sana Nima
- Wesley Navarro
- Darryl Boyd
- Kirk Wahlberg
- RX-77D Guncannon Mass Production Type
- RX-77-1A Guncannon A
- RX-77-3 Guncannon Heavy Arms Type
- RX-77-3D Guncannon Heavy Arms Type D
- RX-77-4 Guncannon II
Behind the scenes
Kunio Okawara is the original mechanical designer.
- Mobile Suit Gundam
- Mobile Suit Gundam: Outer Gundam
- Mobile Suit Gundam: Climax UC
- Mobile Suit Gundam: Cross Dimension 0079
- Mobile Suit Gundam 0079: Zeonic Front
- Mobile Suit Gundam Battlefield Record UC 0081
- Mobile Suit Gundam: Bonds of the Battlefield
- Mobile Suit Gundam: Federation vs Zeon DX
- Mobile Suit Gundam Ex Revu
- Mobile Suit Gundam: Gundam vs Gundam
- Mobile Suit Gundam: Gundam vs Gundam Next
- Mobile Suit Gundam: Gundam vs Zeta Gundam
- Mobile Suit Gundam: Journey to Jaburo
- Mobile Suit Gundam: Lost War Chronicles
- Mobile Suit Gundam Side Story: MS Generation
- Mobile Suit Gundam Side Story: From Place Beyond the Blaze
- Mobile Ops: The One Year War
- Gundam Crisis
- Gundam Tactics Mobility Fleet 0079
- Gundam the Ride: A Baoa Qu
- Dynasty Warriors: Gundam
- Gundam Evolve
- Mobile Suit Gundam: Encounters in Space
- Gundam 0079: The War for Earth
- Mobile Suit Gundam: Pilot’s Locus
- Mobile Suit Gundam: Spirits of Zeon ~Dual Stars of Carnage~
- Mobile Suit Gundam: Target in Sight