One of two steel plates, port and starboard, whose forward parts are bolted to the ground ways supporting a ship about to be launched, while their aft parts are attached to the sliding ways; at the start of the launch, they are cut simultaneously with burning torches to release the ship. Also known as soleplate.
A member attached to the bottom of the rudder of a wooden ship, which brings it down to the false keel.
A member which joins the sternpost and the rudderpost of a wooden ship.
A projection from the keel of a ship.
1. A horizontal member used to distribute the thrust of one or more uprights, posts, or struts.
2. A member on which the foot of a raking shore rests.