From ROI Wiki

The Appalachia is a Samurai class Shipkiller used by Earthfleet in the defense of Sol Space. It's captain is the ever venerable Commander "Toby" Tobias, and it's ships AI is Trent. The Appalachia takes on a lot of different jobs in the fleet, from ferrying diplomats to taking Society Intelligence operatives on deep space covert missions. There's never a dull moment working aboard this ship.