Steersman
In coxless pairs, quadruple sculls and coxless fours, one of the oarsmen will be designated steersman. They will control the rudder using lines attached to the toe of one shoe, which pivots around the ball of the foot. The steersman is chosen according to experience and the nature of the course on which the boat is rowing: bow has a clear view ahead when looking over his shoulder, whereas stroke may be able to steer well on a straight course by pointing the stern at a reference point. Steersmen rowing in the middle of a four or quad are not uncommon, since bow and stroke have other duties already.
Read more about this topic: Boat Positions (sport Rowing)