Top view of a Boat.

This Drawing is Top view of a Boat. Typically they will require two different length oars which is fine if you're going to be rowing tandem and need two sets. Otherwise you'll need to compromise the correct length to work properly in both stations. If you are rowing more than 75% in one station size the oar to that length. Oars are long poles with a wide, flat blade at one end which are used for rowing a boat. Synonyms: paddle More Synonyms of oar.  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. For More details and information download the drawing file.