Rudder
A rudder was the part of a sailing vessel that was directly controlled by a steering wheel that, together, directed the way water flows around the ship, and thus caused a change in direction.

In 2293, James T. Kirk, captain of the , ordered Valeris to put the ship at "Right standard rudder" in order to "bring us alongside", during a rendezvous with the Klingon flagship Kronos One. To perform this maneuver, Valeris had to adjust the ship to "Z plus five s". ()

See also 
 Stick-and-rudder system

External link 
 

Transportation technology