USS PC-815
USS PC-815 was a PC-461-class submarine chaser built for the United States Navy during World War II. Her first commander, for about eighty days in 1943, was L. Ron Hubbard, who later became the founder of Scientology. After Hubbard was removed from command for conducting unauthorized gunnery practice in Mexican territorial waters, PC-815 served as a shore patrol vessel off San Diego, California.