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Tiller blocked by two lines Stern compartment containing the tiller of Swedish 17th century warship Vasa.. A tiller or till is a lever used to steer a vehicle. The mechanism is primarily used in watercraft, where it is attached to an outboard motor, rudder post or stock to provide leverage in the form of torque for the helmsman to turn the rudder.
Shown are the whipstaff, the rowle, the tiller, the rudderstock, and the helmsman. A whipstaff is a steering device that was used on European sailing ships from the 14th to the 18th century. Its development preceded the invention of the more complex ship's wheel and followed the simple use of a tiller to control the steering of a ship underway. [1]
Generally, a rudder is "part of the steering apparatus of a boat or ship that is fastened outside the hull, " denoting all types of oars, paddles, and rudders. [1] 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.
This construction is called "The Saye's Rigg". Another version of wind vane self steering on sail boats is known as the vertical axis vane and usually, because of the inferior steering force output compared to servo pendulum devices it makes use of a trim tab hung off the rudder to control the course of the boat. The vane spins at right angles ...
In coxless ("straight") boats, a steersman is responsible for steering by either use of a mechanism connecting one of his shoes by wire to the rudder—the swiveling of the shoe turns the rudder, or by using a hand controlled string, called a tiller rope, which is parallel to the gunwales or the boat, and controls the rudder in a similar fashion.
It has a masthead sloop rig, a clipper bow with a bowsprit, wooden decorative trailboards on the bow, a keel-mounted rudder and a fixed long keel. Steering is by a tiller with a wheel optional. It displaces 3,500 lb (1,588 kg) and carries 1,300 lb (590 kg) of ballast. [1] [2] [6] [4] The boat has a draft of 2.92 ft (0.89 m) with the standard keel.
Like all boats built for this race, Emma was designed to be self-righting in the event of a capsize—with the caveat that self-righting works only when cabin doors are closed. Had the rogue wave ...
Coxswains may steer with the tiller, commands for increased "pressure" or strength from rowers on one side of the boat, or both, depending on the situation. In the most extreme cases, the coxswain may go "full tiller", turning the rudder to its maximum angle, and may enlist the rowers to help the boat turn faster.
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