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A rudder angle indicator is a device used to indicate the present position of the rudder blade, usually fitted near the Ship's wheel on the bridge and in the engine control room. [ 1 ] Rudder angle indicator of the MS Nordstjernen (1956) Rudder angle indicator
A professional helmsman maintains a steady course, properly executes all rudder orders, and communicates to the officer on the bridge using navigational terms relating to ship's heading and steering. A helmsman relies upon visual references, a magnetic and gyrocompass, and a rudder angle indicator to steer a steady course. The mate or other ...
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The navigation bridge of the Titanic. On the Titanic, the navigation bridge (or command bridge) was a superstructure where the ship's command was exercised.From this location, the officer on watch determined the ship's geographical position, gave all orders regarding navigation and speed, and received information about everything happening on board.
with maximum rudder angle; by the center of gravity of a ship; taken perpendicular to the initial track followed at approach speed; when the heading has changed by 180° The ratio of the tactical diameter divided by the ship's length between perpendiculars gives a dimensionless parameter which can be used to compare ships maneuverability.
Generally, a Scharnow turn involves 1.) placing the rudder hard over in any direction, 2.) deviating 240 degrees from the original course and then placing the rudder hard over to the opposite, 3.) when the heading is 20 degrees from the reciprocal course, the rudder should be placed amidships and engines stopped to bring the vessel alongside ...
The flap rudder is designed to improve the effective lift generated by the rudder and hence improve the manoeuvrability of the craft. The rudder consists of two or more sections which move relative to each other as helm is applied and the angle of the main or driven section moves, thus the shape of the rudder changes dynamically as the angle of helm is changed.
Like all rudders, the main effect of a Schilling rudder is to deflect the flow of water generated by the propeller.Schilling rudders are most commonly used on ships that are difficult to maneuver, particularly large ships such as container ships and oil tankers, slow-moving ships and boats, longer and narrower ships, or boats with slow-moving propellers.
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