From Gineipaedia, the Legend of Galactic Heroes wiki
The battleship (Japanese: 戦艦) is the largest type of military vessel (besides designated flagships) that are depicted in the series. Fielded by both the Free Planets Alliance and the Galactic Empire, the battleship was the most prominent vessel in any combat engagements and were more likely to be presented with a name compared to other smaller types of military vessels.
Free Planets Alliance
The armour of these battleships was considered heavy - at the Battle of Amritsar, the 13th Fleet lined up its battleships as a sort of wall, which the fleet's smaller ships could hide behind. (LOGH: 'The Battle of Amritsar Starzone')
The stark, utalitarian nature of the design is indicative of Alliance martial ideology. The most famous of these ships is likely the Ulysses (No. 913-D). Some variations appear, like the Muh'wäse, with distinctive 'hammerhead' prow, as well as the Abai Geser, which was equipped with more antennae than the standard variant. (LOGH: 'The Battle of Doria Starzone, And...')
- Length: 624 metres
- Width: 65 metres
- Height: 136 metres
- Armament: 8 forward cannons; 14 port cannons; 14 starboard cannons
The bread-and-butter of the modern Imperial Navy, battleships served as the backbone of every modern Imperial fleet, and often served as flagships for admirals.
- Length: 677 metres
- Width: 179 metres
- Height: 228 metres
- Armament: 8 forward cannons; 16 port cannons; 16 starboard cannons
The series features slight differences in the design of Imperial battleships, where the lower and two upper engines sometimes appear shorter. It is not clear whether this is merely animation inconsistencies or actual changes in the ships' design.