All About OCM 9.5 m Amphibious RIB – Walkaround Karel Overlaet, RIB Advocate A walk-around talk with Lucas about the OCM 9.8 m Amphibious Rigid Inflatable Boat. This is OCM’s biggest amphibious boat size. It was custom-built and includes many features that Lucas shows you and explains how they work. Others Also Read...Marine Headsets Used in OCM Amphibious RIBSealegs Solution - Amphibious Design OptionsSealegs Amphibious Vessel Impressive Training with Pete BethuneExclusive: Discover the Making of GEMINI WR880 12 Steps