Model Number: FA-78-2
Code Name: Heavy Gundam
Unit Type: Prototype General Purpose Mobile Suit
Manufacturer: Earth Federation Forces
Operator: Earth Federation Forces
First Deployment: UC 0079
Accommodation: Pilot only, in standard cockpit in Torso
Head Height 18.4 Meters
Weight: Empty 52.2 Metric Tons; Max Gross Weight Unknown
Armor Materials: Luna Titanium Alloy
Powerplant: Minovsky Type Ultracompact Fusion Reactor
Propulsion: Rocket Thrusters: Total Output Unknown
Equipment and Design Features: Sensors, Range Unknown
Fixed Armaments: Cannon, mounted on Torso over right shoulder; Beam Saber, stored in recharge rack in backpack, Hand-carried in use
Optional Hand Armaments: Frame Launcher (mounts Gatling Gun and 4-tube Missile Launcher)
同屬聯邦軍針對 MS 強化的專案 F.S.W.S. (Full-armor System and Weapon System) 計畫下,但本機不似 FA-78-1 Full Armor Gundam 是將 Gundam 本體附上可裝卸的增加裝甲 – 這樣雖然有較高的運用彈性,但價格高昂又維修不易。本機則是從藍圖階段就直接以高攻擊力與防禦力為方向所設計出來的全新機體,為了更結實的軀幹而取消了 Core-Block System 的設計,外型上它與 FA Gundam 一樣有厚重的外裝甲,背上設置了與發電機直結的大口徑 Beam Cannon,而最引人矚目的點當然是裝置於右手臂的超大型武裝 Frame Launcher!將大型六連裝機槍與四連裝導彈合而為一的複合火器系統,這樣的傢伙即使在眾多的 MS 當中也甚為少見。