How does the anchor hold the ship?
An anchor is a heavy weight that is used to hold a boat in place in the water. In olden days, sailors used large stones or other heavy objects which held the boat in place merely by their weight.
But as ships became larger, iron anchors were made with flukes, or “hook,’ that dug into the ocean bottom and prevented the heavy ship from dragging the anchor along the bottom.
A stock, or cross arm, near the top of the anchor prevented it from laying flat and made sure that one of the flukes would dig into the mud.
Today, stockless anchors have replaced most of the old-fashioned stock anchors. The arm of the stockless anchor pivots, or turns, so that both flukes dig into the ocean bottom.
The weight of the heavy chain also helps hold the ship in place. Most large ships carry two or more anchors. To “weigh” anchor means to pull the anchor up.-Dick Rogers