Scharnow turn
The Scharnow 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. The Scharnow Turn is most appropriate when the point to be reached is significantly further astern than the vessel's turning radius. For other situations, an Anderson turn or a Williamson turn might be more appropriate. Put the rudder over hard. 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 hard to starboard). After deviating from the original course by about 240 degrees, shift the rudder hard to the opposite side. When heading about 20 degrees short of the reciprocal course, put the rudder amidships so that vessel will turn onto the reciprocal course. 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.
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