what is hulling
hull-the frame or body of ship. keel-one of the main longitudinal beams (or plates) of the hull of a vessel; can extend vertically into the water to provide lateral stability.. hull-the frame or body of ship. keel-one of the main longitudinal beams (or plates) of the hull of a vessel; can extend vertically into the water to provide lateral stability. keelson-a longitudinal beam connected to the keel of ship to strengthen it.