The Vice President of the United States is the ex officio President of the Senate, with authority to preside over the Senate's sessions, although he can vote only to break a tie. For decades the task of presiding over Senate sessions was one of the vice president's principal duties.
However, because they ride atop the water, rather than cutting through it as other hulls do, flat-bottom boats are usually limited in the size of their motors. The flat surface may also give a spine-jarring ride in anything less than calm weather.
A multihull is a ship, vessel, craft or boat with more than one hull.Multihull ships (vessels, craft, boats) include multiple types, sizes and applications. Hulls range from two to five, of uniform or diverse types and arrangements. Catamarans are the most common type, with two symmetric hulls.n outrigger is a small side hull attached to the main load-carrying hull by two or more struts. Proas have one hull and one outrigger. Engines are commonly placed on the main hull. A ship with one hull of conventional shape and two small side hulls (outriggers) is called an outrigger ship.