There are a number of design constraints which naval architects usually face when designing sail boat. Wind blowing on horizontal direction usually forces a ship or a boat to an inclined position, thus creating frequent rolling to the vehicles. In addition, if solar panels are to be installed the amount of energy will not be fully enough to drive electric motors that propel the boat. On the other hand, if sails are to be installed, it will not fully efective in propelling the boat all the time because wind blows are unpredictable. There are times when there is no wind blowing or if there is one, its direction might be from the front.
It says that the boat will carry passengers to Alcatraz, a famous island prison located in the middle of San Francisco bay.
Even though conventional sail boat has long been replaced by cargo, passenger ships and airplanes in transporting people and goods, they are still popular among hobbyists and tourists. One important example is Phinisi schooner from Indonesia. This type of sail boat has got 2 masts where the sails are installed. In the part, the boats are used to transport people and goods between small and big islands in Indonesia. Today more Phinisi schooners are being developed to cater the increasing demand for liveaboard vessels that transport visitors to various destinations in this country such as Raja Ampat, Cendrawasih bay, and Wakatobi. The sails and the masts are not used during the whole operation of the vessel. These liveaboard vessels have been installed with marine diesel engines to enable them to travel faster at sea.