Steinvatn-pattern Fast Battleship

The Steinvatn-pattern Fast Battleship (UNSC Reporting Name: Atlantis; Designator: TBA) is an Astral Fast Battleship in service with the Greater Leithanian Astral Navy. It was first encountered in the Battle of Aleria in 2558 as the flagship for a detachment of the Katla Sisterhood. Since then, the Office of Naval Intelligence has only recorded 6 separate examples of the ship, with ONI granting the ship the reporting name Atlantis. Since then it has been learned that the class's true name is Steinvatn (lit. Stone Lake).
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==History==
===The Great War===
Main Article: Human-Leithanian War
The Steinvatn-pattern was first encountered by UNSC forces on 13 August 2558 during the Battle of Aleria. The ship, later identified as the Áshverfi (ᚽᚭᛌ-38), was operated as a command ship for Battlegroup 13, XIV Grand Fleet, also known as the Katla Sisterhood. The Áshverfi commanded the Battle of Aleria, as well as coordinated the orbital operations and general strategy for the Occupation of Aleria.
Of the six Steinvatn battleships spotted, there has only been one other deployed in battle, the Merki (ᚽᚭᛌ-48), which was used as a command ship for the Woodworm Caste during the Battles of Selene. The other four have typically been spotted operating far behind enemy lines.
==Ships of the Line==
Name 	Hull Designation	Commissioned	Destroyed	Notes
ÁshverfiThe name of the vessel is a translation done at the request of ONI based on the inscription spotted on the vessel.	ᚽᚭᛌ-38 	 	 	First ship of the class encountered during the Battle of Aleria. Commission date is unknown. The ship would later be identified as one of the command ships of the Katla Sisterhood.
Hvanneyri 	ᚽᚭᛌ-39 	 	 	An example of the ship spotted by the UNSC Triangulum (PRO-48008). The Hvanneyri has not participated in any battles with UNSC forces.
Merki 	ᚽᚭᛌ-48 	 	 	Participated as a command ship for the Woodworm Caste during the First, Second, and Third Battles of Selene.
Skipaskagi 	ᚽᚭᛌ-66 	 	 	Believed to be one of the command ships for the Silver Knights. Spotted alongside the Hella at Aleria by the UNSC Dusk (PRO-47993).
Hella 	ᚽᚭᛌ-67 	 	 	Believed to be one of the command ships for the Silver Knights. Spotted alongside the Skipaskagi at Aleria by the UNSC Dusk (PRO-47993).
Unidentified AtlantisVessel was unable to be identified. 	ᚽᚭᛌ-88 	 	 	The unidentified Atlantis, hull designation ᚽᚭᛌ-88, was spotted by the UNSC Triangulum (PRO-48008) passing Selene. The vessel's only markings were its hull designation.