About the Book
Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Pages: 58. Chapters: Aftercastle, Aka (sailing), Ama (sailing), Ballast tank, Beakhead, Beitass, Bilge, Bilgeboard, Boomkin, Boom (sailing), Boom vang, Bowsprit, Bow (ship), Brail, Bulb keel, Bunt (sail), Canting keel, Carling (sailing), Cathead, Centreboard, Cockpit (sailing), Cringle, Daggerboard, Deck (ship), Dolphin striker, Fife rail, Figurehead (object), Gaff vang, Gunwale, Hawsehole, Hawser, Jackline, Jib, Marine canvas, Martingale (rigging), Mast (sailing), Parasailor, Pelican striker, Prow, Quarter gallery, Roller furling, Rudder, Sailboat design and manufacturing, Sailcloth, Scupper, Ship's wheel, Skeg, Spinnaker, Steering oar, Taffrail, Tiller, Trailboard, Trampoline (multihulls), Transom (nautical), Trim tab, Unstayed mast, Vaka (sailing), Winged keel, Wingsail. Excerpt: A rudder is a device used to steer a ship, boat, submarine, hovercraft, aircraft, or other conveyance that moves through a medium (generally air or water). On an aircraft the rudder is used primarily to counter adverse yaw and p-factor and is not the primary control used to turn the airplane. A rudder operates by redirecting the fluid past the hull or fuselage, thus imparting a turning or yawing motion to the craft. In basic form, a rudder is a flat plane or sheet of material attached with hinges to the craft's stern, tail, or after end. Often rudders are shaped so as to minimize hydrodynamic or aerodynamic drag. On simple watercraft, a tiller essentially, a stick or pole acting as a lever arm may be attached to the top of the rudder to allow it to be turned by a helmsman. In larger vessels, cables, pushrods, or hydraulics may be used to link rudders to steering wheels. In typical aircraft, the rudder is operated by pedals via mechanical linkages or hydraulics. Scheme of a sternpost-mounted medieval rudder. The iron hinge system was the first stern rudder permanently attached to the ship hull. It made a vital contribution to the navigation achievements of the age of discovery and thereafter. Quarter rudder of a Phoenician shipGenerally, a rudder is "part of the steering apparatus of a boat or ship that is fastened outside the hull," that is denoting all different types of oars, paddles, and rudders. More specifically, the steering gear of ancient vessels can be classified into side-rudders and stern-mounted rudders, depending on their location on the ship. A third term, steering oar, can denote both types. In a Mediterranean context, side-rudders are more specifically called quarter-rudders as the later term designates more exactly the place where the rudder was mounted. Stern-mounted rudders are uniformly suspended at the back of the ship in a central position, but the term has historically been found wanting because it does not take into account that the stern rud
