Patent ID: 8028639
Filing Date: 2011-10-04
Classification: B63H

Abstract:
1. A tuned transom for a marine vessel comprising a boat hull having a bow, an aft section, a port side and starboard side with a centerline, wherein the tuned transom comprises: a. an outer constraining layer positioned in the aft section enclosing the boat hull; b. an inner constraining layer that is a separate sheet from the outer constraining layer and parallel to the outer constraining layer; c. a constrained damping layer adapted to bond the outer constraining layer to the inner constraining layer, wherein the constrained damping layer consists of a visco elastic material, wherein the visco elastic material does not provide a structural glue line, wherein the constrained damping layer is thinner than the outer constraining layer and the inner constraining layer at a ratio of no more than 4:1; and d. means for securing edges of the outer constraining layer and the inner constraining layer to the boat hull.