Nowadays mariners are getting used to count on modern aids f...

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Q2196963

Ano: 2006 Banca: Marinha Órgão: DPC - Marinha Prova: Marinha - 2006 - DPC - Marinha - Praticante de Prático |

Q2196963 Engenharia Naval

Nowadays mariners are getting used to count on modern aids for docking and undocking maneuvers, like bow thrusters, stern thrusters, controllable pitch propellers and so on. Nevertheless, there are still lots of ships not fitted with these devices. Furthermore, sometimes not even a single tug is available. When facing such a situation, an accomplished shiphandler will use the ship’s characteristics combined with the forces of nature, say wind and current, as an aid rather than a hindrance. Considering a single screw right hand turning propeller ship on a berthing maneuver, which of the following assertive contains incorrect information, according to Daniel H. Mac Elrevey?

When berthing port side to, the ship is set up to allow a swing of the stern to port. Since the ship’s angle of approach decreases each time the engine goes astern, the initial angle of approach is smaller for a port side to docking.

When going starboard side to the berth, put the rudder to port and kick the engine ahead until the stern develops a slight swing to starboard. After this slight swing of the stern to starboard has begun, go astern to slow or stop the ship. Repeat the maneuver as required so the ship is stopped in position and parallel to the pier.

Knowing that the ship swings when setting up to back and berthing port side.

When the wind is quite strong onto the berth, put the ship alongside earlier in docking. Don’t fight a strong wind: let the ship go alongside and slide up the stringpiece into position.

The rudder can often remain hard left during the final stages of a docking maneuver whether docking port or starboard side to, once this is the position in which it will most likely be needed.

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Nowadays mariners are getting used to count on modern aids f...

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