“Motor Boats” are interpreted mainly as boats with the outboard motors, "Power Boats" are small boats with more powerful stationary engines.
Day Cruiser. This type of boats is mainly for one-day trips. A word “cruiser” derives from a Dutch word "kruise". Day cruiser is a boat for short duration sea sails, exercises, swimming, water skis, picnic etc.
Overnighter and Weekender. These terms have wide meaning and describe rather functional boat qualities, than those which serve for determination of the boat type. If day cruiser can be called both the light opened boat and the runabout boat with a deckhouse-shelter, the terms “overnighter” or “weekender” are applicable to the cabin powerboat with caboose and latrine.
Runabouts
The most popular and numerous class for the most widespread type of boating - short duration (few hours) trips on an aquatorium for swimming, riding various means invented for this purpose, journeys on a picnic in picturesque places etc. It's possible to divide runabouts into types by structure.
?losed Bow. This type of boats is a type of runabouts. This is one of variants of small powerboats arrangement. It's clear from the name that this is the type of boat with closed nasal part, where luggage locker is arranged usually.
Bowrider. This is a boat with cockpit in nasal part. Such architecture is preferable to the aquatoriums with a warm climate; up to 80 % of American runabouts are exactly bowriders.
Cuddy Cabin. Boat with a small cabin or, if you wish, with a deckhouse-shelter. Cuddy means a "small cabin".
Hard Top. Traditions of north Europe generated the type of runabouts which have a small, opened from a stern deck-house (hard top means a "hard roof"). A V-type bunk is put in a bow. The presence of caboose (oven and sink), which hard tops are often equiped by, multiplies their autonomousness considerably. Light awning is erected above cockpit if necessary.
Midcab (Middle Cabin). Type of boat widespread in Scandinavia with a small deckhouse-cabin in the middle and, accordingly, nasal and stern cockpits.
Deck Boat. Type of deck boat, descended from the runabouts. Actually, they are bowriders with extended nasal cockpit; they can accommodate more passengers, at service of which are pair of tables, sink, boxes with ice and other necessary accessories for cocktail or even barbecue.

Sporting Tow Boats. Active types of entertainment often become types of sport. So happened with water skis and later - with wakeboarding in boating. Water skis and wakeboarding became a professional sport with time and they began to demand specialization from the boats, so boat-tows appeared. Above all their differences from ordinary cruisers is the ability of certain waveformation, caused by the hull shape and centering. Boats which are towing a skier should create low and flat waves; large and sharp waves are needed for wakeboarding. These boats have stationary engines with a straight axle as a rule. It's possible to place among this group another type of boats - parachute tows. So this boats help you to have fun on the water.
High Performance Boats. Out of all possibilities and feelings which technique gives to a man just a little can compare with high speed. Each of us is obsessed by a need for speed to a greater or lesser extent. The class of high performance boats is created for satisfaction of this necessity. They can be compared to a muscul-car or sportcars, by analogy with which the term "sportboat" is used. But in the English-language articles combination of words "sport boat" is used more frequently to imply runabouts. Applying the term "sportboat" for high performance boats, we allow some liberty.
High performance boats differ from ordinary runabouts by biger dimensions and power, which allow to make over 50 knots. By design and technical characteristics racing boats of offshore (ocean) class serve as an example for them. Quite often sportboat is simply a "civil" variant of such racing boat. Hull is usually cuddy, sometimes - bowrider. Interior of high performance boats certainly depends on the beam. There are many catamarans in this class. Like bikers and lovers of autotuning and hotrod, the apologists of sportboats formed their subculture with meetings for races (poker run), magazines (for example, "Powerboat" and "Hot Boat") and other attributes ordinary for such associations. However, the last is peculiar to the owners of other boat classes.