Hydrosport 636 RIB Roughneck marine Karel Overlaet, RIB Advocate Hydrosport 636 with Evinrude Etec 90 at rough sea
RIB Hydrosport 646 (Hungarian) Karel Overlaet, RIB Advocate RIB (Rigid Inflatable Boat) prototypes of all models of the Portuguese manufacturer of Hydrosport Inflatables are intensively tested like this Hydrosport 646.