Sailboat

The term sailboat has a wide meaning generally including yachts, (large sailboats) and smaller vessels of many configurations, which use wind as the chief means of propulsion. Some of the variations other than size are: hull configuration (monohull, catamaran, trimaran), keel type (full, fin, wing, centerboard etc.), purpose (sport, racing, cruising), number and arrangement of masts, and the sail chart. Some of the terms underneath have had various meanings through history, but now have a specific meaning in the parlance of modern yachting. See also the articles on sailing ships and yachts; each of these terms generally describes a larger vessel than a sailboat; however, the distinctions are fuzzy and the definitions differ by region and culture. At the smaller end, the distinction in the midst of, sailboards, windsurfing, and dinghies can be vague.

Motorboat

A motorboat usually speaking is a vessel other than a sailboat or personal watercraft, propelled by an interior combustion engine driving a jet or a propeller. However, the International Regulations for Preventing Collisions at Sea defines that any boat propelled by machinery. A speedboat is a small motorboat intended to move quickly, used in races, for pulling water skiers, as patrol boats, and as fast-moving armed attack vessels by the military. Even inflatable boats with a motor attached which may be serving as a high speed patrol boat or as a plodding walker dingy providing transport to and from a mooring buoy are strictly classified as motorboats.
There are three well-liked variations of power plants: inboard, inboard/outboard, and outboard. If the engine is installed within the boat, it's called a power plant; if it's a detachable module attached to the boat, it's normally known as an outboard motor.

An outboard motor is installed on the rear of a boat and contains the inner combustion engine, the gear decrease (Transmission), and the propeller.An inboard/outboard contains a hybrid of a power plant and an outboard, where the interior combustion engine is contained inboard and the gear reduction and propeller are outside.

A purely inboard boat contains everything apart from a shaft and a propeller inside the vessel. We have two configurations of an inboard, v-drive and straight drive. A direct drive has the power plant mounted close to the middle of the boat with the propeller shaft straight out the back, where a v-drive has the power plant mounted in the back of the boat facing backwards having the shaft go towards the front of the boat than making a 'V' towards the rear.

Yacht

The term luxuriousness yacht refers to a very expensive privately owned yacht which is professionally crewed. Also known as a super-yacht or a mega-yacht, a luxury yacht may be moreover a sailing or motor yacht.
This term began to appear at the beginning of the 20th century when wealthy individuals construct large private yachts for personal pleasure. Examples of early lavishness motor yachts include M/Y (motor yacht) Christina O and M/Y Savarona. Early luxury sailing yachts comprise Americas Cup classic J class racers like S/Y (sailing yacht) Endeavour and Sir Thomas Lipton’s S/Y Shamrock. The New York Yacht Club hosted many early luxury sailing yacht events at Newport, Rhode Island, throughout the Gilded Age.
More recently, over the last decade or two, there has been an increase in the number and fame of large private luxury yachts. Luxury yachts are mainly bountiful in the Mediterranean and Caribbean Seas, although increasingly luxury yachts are cruising in more remote areas of the world. With the increase in demand for luxury yachts there has been an increase custom boat building companies and yacht contract brokers.