User blog comment:Midhav/Shoutbox/@comment-4898132-20110105034742/@comment-4898132-20110109064625

To answer your question(as well as what type of ship): Sentinel is a brig, a defensive warship that patrolled the waters near the EITC's ports in the Bight of Benin (the slave coast) to guard against pirate attack. It's fairly heavily armed and has marines aboard. It's like "private security" or "paramilitary". And at the end of PoF, Sentinel was anchored 1 mile off the coast of Africa near the mouth of the Calabar.