MAKING OF INFLATABLE RESILIENT KEEL-SHAPED BOTTOM OF SMALL INFLATABLE VESSEL AND BOTTOM TO THIS END Russian patent published in 2015 - IPC B63B7/08 

FIELD: transport.

SUBSTANCE: in compliance with claimed method, keel-shaped of the bottom is made and shaping webs are used. Said webs are arranged inside inflatable bottom composed of the lower and upper parts. The latter are made of resilient sheet. Keel-webs are shaped to wings and secured via connectors arranged on both sides of mirror axis in centreline plane to inner surfaces of said lower and upper parts and are interconnected over to rib of free end in its entire length. Said webs are secured in symmetry at bottom upper part centreline plane. Lower part of said webs are secured at the bottom lower keel section at the spacing larger than the upper section of webs in the bottom upper plane, or lower section of the webs are secured in parallel.

EFFECT: better bottom deadrise.

3 dwg