Scharnow turn
The Scharnow turn is a man overboard maneuver in seafaring. The maneuver, English delayed turn , is also called "Scharnow-Turn" in German after the navigator Ulrich Scharnow (* October 4, 1926, † May 20, 1999).
The maneuver quickly puts a ship on the opposite course. The Scharnow turn is only suitable if the ship is more than one turning circle diameter from the scene of the accident. In such situations it is the quickest way to get back to the scene of the accident.
- Rudder hard over
- after 240 ° course change: Rudder hard over on the opposite side
- 20 ° before the opposite course: rudder midships.
Of course, these values are only intended as a guide. In practice, the values vary depending on the ship, wind direction and strength and the nature of the sea. The right behavior for the vehicle type in question is best obtained through thorough training and experience with the corresponding vehicle type.
In the commercial shipping of the turning circle and are Williamson's turn as a man-overboard maneuver usual.
literature
- Gerd-Fritz Walter: Man overboard. 1999, ISBN 3-9805423-1-9
- DJ House: Seamanship Techniques. 3. Edition. 2004, ISBN 0-7506-6315-4