The Sultan-class was a class of battlecruisers built and used by the People's Navy from the mid-19th to the early 20th Century PD.
It was almost ten percent larger than its predecessor, the Tiger-class, and boasted significant enhancements in both armament and electronics over the older design. The class was eventually superseded by the Warlord-class during the First Havenite-Manticoran War. (HH7)
The Sultan-class had twice the armament and five times the ammunition of an RMN Star Knight-class heavy cruiser. (HH2)
It had a designed n-space endurance of only 95 days between refuelings.
Jayne's Intelligence Review, Vol. 2: The Havenite Republican Navy