Glacier Bay's high-speed, displacement hull is able to run at very high rates of speed in severe sea conditions. The sensation at the helm is very soft, and stable. However, the hull must absorb all the energy and impact of each wave, mile after mile, year after year. The integrated structure required to absorb these loads must be exceptionally strong. The grid structure in each GB includes from 7 to 10 full width athwartship bulkheads ranging in height from 7-24 inches. In addition, a multitude of ribs and stringers are combined with these bulkheads to even further enhance the strength. These components are fully encapsulated in polyester resins and bonded in with woven roving and knitted fiberglass. Sixty percent are also fiberglassed to the deck to create a fully integrated composite structure.