Da Longdan

Da Longdan (大龍蛋) is a class of mobile fortress belonging to the Chinese Federation and its successor the United States of China. It has a similar design as the Longdan though of a much larger scale. It is also noteworthy for its large bow cannon, which is perhaps the largest conventional gunnery weapon in Code Geass.

Design and Specifications
Whilst on the surface it closely resembles the smaller Longdan-class Ground Combat Command Battleship, the Da Longdan actually incorporates a Float System. Whilst it is unable to achieve true flight (likely due to either its immensed weight or underpowered Float System), it does give the Da Longdan the abillity to hover over soft bodies like water, making the Da Longdan an Amphibious Floating Command Battleship; a poweful naval asset in a nutshell.

As aforementioned, the Da Longdan is armed with the largest gun in the entire franchise, the bow-mounted cannon is an immediate threat to anything within its range, one-shotting other capital ships in a single shot. Moreover, it is backed with side-mounted naval guns which are as big as the ones mounted on the Longdan and dozens of CIWS. Other than its awesome firepower, the Da Longdan's Float System allows it to cross areas that was deemed impossible to the Longdan.

The only downside is its large size making it an easy target and its slow and sluggish speed, requiring the assistance of several Chinese Federation Floating Battleships to protect it.

Operational History
The Da Longdan first appeared during the Kagoshima Settlement Battle where it served as the flagship and command center for the Black Knights during their assault on the Kagoshima Settlement.