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The oars used in competitive rowing are long (250–300 cm) poles with one flat end about 50 cm long and 25 cm wide, called the blade. The part of the oar the oarsman holds while rowing is called the handle. While rowing, the oars are supported by metal frames attached to the side of the boat called riggers, while the oar fits into the oarlocks ...
In rowing, oars are used to propel the boat. Oars differ from paddles in that they use a fixed or sliding fulcrum , an oarlock or rowlock attached to the side of the boat, to transfer power from the handle to the blade, rather than using the athlete's shoulders or hands as the pivot-point as in canoeing and kayaking .
In a "single banked" boat, there is one person on each thwart pulling one oar. Though there is usually an even number of oars used in single banked boats (alternating port and starboard along the length of the boat) a common exception is the arrangement in many whaleboats, where five oars were often used, three on one side and two on the other.
Rowing, often called crew in the United States, is the sport of racing boats using oars. It differs from paddling sports in that rowing oars are attached to the boat using rowlocks, while paddles are not connected to the boat. Rowing is divided into two disciplines: sculling and sweep rowing. In sculling, each rower holds two oars, one in each ...
(a) An oar made to be used in a sculling boat where each rower has two oars, one per hand (b) A boat (shell) that is propelled using sculling oars, e.g., a "single scull," is a one-person boat where the rower has two oars. Seat Molded seat mounted on wheels, single action or double action.
Types of boat shown in an 1808 engraving, including top left, 'a Jolly boat for oars or sail' The jolly boat was a type of ship's boat in use during the 18th and 19th centuries. Used mainly to ferry personnel to and from the ship, or for other small-scale activities, it was, by the 18th century, one of several types of ship's boat.