Sea Battles of Gondor

NUmenor and Gondor were supposedly naval powers... but there is little mention of sea battles. Did Tolkien write anything about naval battles? Oh, LOTR Appendix did mention Aragorn, disguised as Thorongil, leading the Gondorians on a raid on Umbar that destroyed most of the enemy ships, and during the Kinstrife, Castamir used the ships to good effect. Castamir probably bombarded Osgiliath with Greek (Numenorean?) Fire and catapults from the ships on the River.

ASide from that, the Gondorian NAvy is notable for its absence.

What were the ships like, for one thing? My guess is that they were similar to the oared dromonds (like galleys, but larger and too unwieldy for ramming, but armed with ballistae, catapults and later, small cannon) practically every sea-power used until the English developed tactics using larger long range cannon and broadsides. BUt it's a guess only. The ships could have been Chinese junks for all I know. (Naaaahhh....)

THe English and French commandeered merchant ships and built "castles" at the bow and stern for fighting at the Battle of Sluys in the Middle Ages, but the resulting structure was a bit top heavy and rolled nastily. Both sides wisely abandoned them, and I doubt the Sea-Kings of Gondor and Numenor would ever put up with them.