Downloads Wallpaper : ship, weapon, LEGO, team, Halo, atmosphere, space station, Paris, machine, Battleship, savannah, UNSC, heavy, September, Battlecruiser, pelican ... PC-1173 conducted post-overhaul refresher training out of Miami and arrived at Norfolk on 11 September. Here the submarine chaser had most of her ordnance removed in preparation for air-sea rescue work in the North Atlantic. The PCS class submarine chasers were a class of submarine chasers built mainly for the US Navy from 1941-1944. They were designed as well-armed coastal antisubmarine warfare vessels, with an intended speed of 22 knots. Much larger than PT Boats, they were much slower, but capable of fast attack on submerged submarines.