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Traditional wooden oars. An oar is an implement used for water-borne propulsion. Oars have a flat blade at one end. Rowers grasp the oar at the other end. The difference between oars and paddles is that oars are used exclusively for rowing. In rowing the oar is connected to the vessel by means of a pivot point for the oar, either an oarlock, or ...
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 .
The pivot point of the oars (attached solidly to the boat) is the fulcrum for this lever. The person operating the oar is kept in position (when applying maximum force) by a stretcher, a footrest that may be as simple as a wooden bar that can be adjusted by positioning in different pairs of notches in the bottom of the boat.
In older texts, the U-shaped metal fitting may be called an "oar crutch", a usage which is largely obsolete. [4]: 213–217 [5] An alternative pivot point for oars are thole pins that the shaft of the oar nestled between. Single thole pins may be used when the oars have holes cut into the loom, which then sits over/around the thole pin. [6]
A distinctive feature was that the washstrake had cut-outs (called rowlocks) in which the oars were worked, unlike most boats of the period, that used thole pins as the pivot point for the oars. [ c ] This allowed a higher freeboard, which was helpful if sailing – when the cut-outs were filled with wooden shutters (often mis-called poppets ...
The Chinese yuloh [8] (Chinese: 摇 橹; pinyin: yáolǔ; Jyutping: jiu 4 lou 5) is a large, heavy sculling oar with a socket on the underside of its shaft which fits over a stern-mounted pin, creating a pivot which allows the oar to swivel and rock from side to side. The weight of the oar, often supplemented by a rope lashing, holds the oar in ...
In a boat propelled by oars, the thwart has to be positioned with the right geometry for the oar to be worked efficiently and comfortably. Firstly, with a rearward facing oarsman, [a] the thwart has to be nearer the front of the boat than the pivot point for the oar (which acts as a fulcrum). The usual distance between the after edge of the ...
Man rowing in slow pace typical for long distances. In rowing (sport), the stroke is the action of moving the oar through the water in order to propel the boat forward. The two fundamental reference points in the stroke are the catch where the oar blade is placed in the water, [1] and the extraction (also known as the 'finish', 'release' or 'tapping down') where the oar blade is removed from ...