Rocna Vulcan AnchorRocna Vulcan Anchor Carefully designed to offer the greatest possible compatibility across a wider range of vessel bow configurations. Choose the Vulcan for a snug fit on the bow of any boat, including those with platforms and bowsprits, for vessels from small runabouts to large yachts and powerboats. Unique shank and fluke geometry combine with an innovative roll palm to self right the anchor on the seabed The V bulb extends fluke ballast downward to