Espirito Santo
DESCRIPTION
The fictional ghost ship that appears in 3.06 Red Sky at Morning is a death omen. It is described as a three-masted Clipper ship.
It was like the old Yankee clippers. A smuggling vessel. Rakish topsail, barquentine rigging, angel head on the bow.
– Peter Warren, 3.06 Red Sky at Morning
The name means literally "holy spirit" after the Holy Ghost of Christianity.