Movement in rudder blade

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Hi Michael,Recently my 311 has a strong vibration from the rudder in the range between  5 and 6 knots. Today I and the marina staffs including a engineer were on board to investigate the problem. After test cruising, the boat again sit on the cradle, the engineer tapped it on the both side of the rudder by the stainless stick, listened to the taps, and told me that the inside of the left side of the rudder was likely to peel from the ribs, because the taps of the both sides sounds differently each other. As a result, the rudder lost strength and became flexible, to cause the vibration. It seems to be neccesary to rebuild or remake the rudder. I am very sorry....
The engineer said the structure of the rudder of Hanse generallly weak even if it is new. I tried to bend a lot of rudders including my 311 and other sailing boats in the marina, and I found that my rudder is clearly softer than any other boats.

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km311 Members Profile Send Private Message Find Members Posts Add to Buddy List Sub Lieutenant Joined: 27 February 2012 Location: YOKOHAMA Status: Offline Points: 1	Post Options Post Reply Quote km311 Report Post Thanks(0) Quote Reply Posted: 27 February 2012 at 12:01
	Hi Michael, Recently my 311 has a strong vibration from the rudder in the range between 5 and 6 knots. Today I and the marina staffs including a engineer were on board to investigate the problem. After test cruising, the boat again sit on the cradle, the engineer tapped it on the both side of the rudder by the stainless stick, listened to the taps, and told me that the inside of the left side of the rudder was likely to peel from the ribs, because the taps of the both sides sounds differently each other. As a result, the rudder lost strength and became flexible, to cause the vibration. It seems to be neccesary to rebuild or remake the rudder. I am very sorry.... The engineer said the structure of the rudder of Hanse generallly weak even if it is new. I tried to bend a lot of rudders including my 311 and other sailing boats in the marina, and I found that my rudder is clearly softer than any other boats.

samba Members Profile Send Private Message Find Members Posts Add to Buddy List Captain Joined: 24 December 2007 Location: Netherlands Status: Offline Points: 234	Post Options Post Reply Quote samba Report Post Thanks(0) Quote Reply Posted: 27 February 2012 at 20:29
	Hi km311, Thanks for the info. At my boat the barings were replaced solving 90% of the problems. There was a lot of movement in the rudder pole. Interesting to know it can also be the rudder blase itself. Next time when the boat is out of the water I will check that as well. Thanks for the info Cheers, Michiel
	Samba - Hanse 411 - Bruinisse

Ronmeul Members Profile Send Private Message Find Members Posts Add to Buddy List Sub Lieutenant Joined: 30 July 2009 Location: Netherlands Status: Offline Points: 5	Post Options Post Reply Quote Ronmeul Report Post Thanks(0) Quote Reply Posted: 02 August 2014 at 23:40
	There is a simple way to adjust the rudder. On the rudder shaft just below deck there is an adjustment ring. Is is black and it has three inbus bolts, i believe arounf M6. Beforre loosening them attach a line to the shaft where the emergency rudde can be placed. Make sure there is som pressure on the line but not too much. Loosen the three bolts. After that turn up the pressure on the line to pull the rudder up and fasten the three bolts. The rudder wil have far less movement after, at least mine did.. Ron
	Ronald



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