Special Feature: Bering Yachts 77' Expedition Series | Page 2 | YachtForums: The World’s Largest Yachting Community Bering's hybrid hull design is one part round bilge, one part hard chine and one part bilge keel. The result is better passive stabilization by presenting a some hard edges to resist lateral rolling motions, but still maintaining the dampening characteristics of a round bilge hull. This can be most effective at anchor or in a beam sea.