Watersport device with a longitudinally extended boat hull

摘要

A watersport device with a longitudinally extended boat hull, consisting of an upper shell and a lower shell connected thereto and made of plastics material, in which the hollow void between upper and lower shell is foam-filled by a foamable plastic, and the upper and the lower shell are designed with different flexural stiffness to increase the damping effect to dynamic flexural loads. The different flexural stiffness can be achieved with different material thicknesses, materials with different specific flexural stiffnesses or a combination of the two measures.