The Anderson turn is a maneuver used to bring a ship or boat back to a point it previously passed through, often for the purpose of recovering a man overboard, an emergency situation in almost all circumstances.
The Anderson turn is most appropriate when the point to be reached remains clearly visible. For other situations, a Scharnow turn or a Williamson turn might be more appropriate. Both will require more time before returning to the point in question.
- If the turn is in response to a man overboard, stop the engines.
- Put the rudder over full. If in response to a man overboard, put the rudder toward the person (e.g., if the person fell over the starboard side, put the rudder over full to starboard).
- When clear of the person, go all ahead full, still using full rudder.
- After deviating from the original course by about 240 degrees (about 2/3 of a complete circle), back the engines 2/3 or full.
- Stop the engines when the target point is 15 degrees off the bow. Ease the rudder and back the engines as required.
If dealing with a man overboard, always bring the vessel upwind of the person. Stop the vessel in the water with the person well forward of the propellers.
Read more about this topic: Man Overboard Rescue Turn
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