The invention is vessel with a tower adapted to be inclined for handling of tubulars mad of a vessel, a tower with a mast that can be inclined, a pipe reel for storing passing tubulars, a strut with a sleeve for engaging and enabling tower inclination, and a tensioner mounted moveably on the mast for receiving the tubular wherein the tensioner is made of two connectors connected to the mast, a frame that engages the connectors, two track bodies that engage the tensioner frame and the tubular, and an adjustable vertical support adapted to modify the relationship between the force transmitted by the adjustable vertical support onto the tensioner and the motion of the tensioner relative to the mast.