Stern Rudder

Stern Rudder is a form of Technology and Culture.

Description
Small ships can be steered with an oar mounted to one side, but this becomes difficult to handle as ships get larger. The development of the stern rudder allows larger vessels to be constructed. It consists of a large central paddle mounted on a post at the rear of the ships. It is moved by handle at the top of the post, which may require several men on larger ships. The rudder post is the strongest part of a ship, and traditionally made of elm.

Effects

 * Enables construction of: Shipyard