This makes a total of THREE rudders with ONE main rudder and TWO flanking rudders, The flanking rudders work as a pair and are used independently of the main rudder.
Alan Rose
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Rudder System found on Towboats | |
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This system is not special to Towboats and can also be found on other vessels that require a high degree of manoeuvrability, but is not so common on UK or European craft. | |
| This multi - rudder system has a
single rudder conventionally positioned astern of each propeller, used to steer
when going ahead and a pair of "Flanking" (sometimes called "Backing") rudders
mounted each side of the propeller shaft ahead of the propeller which are used
when going astern. This makes a total of THREE rudders with ONE main rudder and TWO flanking rudders, The flanking rudders work as a pair and are used independently of the main rudder. |
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| The following diagrams show the rudder set up on a twin propeller vessel such as on my Towboat models. | ||
| Rudder Positions when going Ahead in a Straight Line | ||
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| MAIN RUDDERS are used when turning AHEAD | ||
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| FLANKING (or BACKING) RUDDERS used when turning ASTERN | ||
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2002 Alan Rose |