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rudder dent?

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alettaenmarcel View Drop Down
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    Posted: 06 November 2017 at 09:12

My boat went out of the water this week and I noticed a dent in my rudder.
Does anyone has any experience with any deforming off its rudder.
My boat is from 2006.
The rudder feels very solid, has no water in it , is not damaged .
I will post a picture later
Gr marcel




Edited by alettaenmarcel - 06 November 2017 at 09:33
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Kallisto View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Kallisto Quote  Post ReplyReply Direct Link To This Post Posted: 26 November 2017 at 20:04
Hi Marcel,
own a 370 of 2008. Discovered in autumn 2016 among other problems (corrosion of rudder shaft with water intruding into the rudder) a very strong detoriation of the rudder, not only a dent as in yours. had it fixed by a yard. Must have been bad production of Hanse. According to my yard the problem is well known.

Result: far better manoeverability
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alettaenmarcel View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote alettaenmarcel Quote  Post ReplyReply Direct Link To This Post Posted: 08 January 2018 at 11:53
i did take the rudder from my boat to my house.
It was fulle of water and it is now getting empty (I hope)
I drilled several holes in it and I want to heat it up fore some time so the watter can damp out off the holes.
Wenn it is dry enough I will repair it and fill the thend with laminate.
 


Edited by alettaenmarcel - 08 January 2018 at 11:55
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Peter-Blake Quote  Post ReplyReply Direct Link To This Post Posted: 08 January 2018 at 14:08
Marcel,

i would open the rudder, definatly! Remove one half of it!
Check if the inner construction still has a good connection to the "Skin" / outer form. Normally only one side has a good connection, So try to open the other half. Only emtying through the holes is in my opinion no solution.  The rudder ist to important for safety. If you loose the ouder skin or grp of the rudder, you will be in danger!

Just my 5cent
Blake 370
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iemand View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote iemand Quote  Post ReplyReply Direct Link To This Post Posted: 08 January 2018 at 17:23
Interesting link:

http://www.mergerandfriends.de/index.php/technik/rumpf-u-deck/79-rudersanierung-besser-als-neuwertig

Hanse 312 MJ 2004 - Hanse 370e MJ 2007
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alettaenmarcel View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote alettaenmarcel Quote  Post ReplyReply Direct Link To This Post Posted: 11 January 2018 at 08:41
I have opend it so the rudder can breath well.
I am heating and vaccuum the rudder at the moment , the system from hot vac wich is a methode from currin g from osmosis.
The weigth off the rudder must be (wenn new) about 50 kg, its weight was about 64,5 kg wenn full off water.
So wenn it is about the 50 kg I will close the holes and repair and finisch the rudder.
 
The rudder is still very strong , no movement at all so I will sail again with it this year .
Next time the boat is on shore I will again take the rudder from the boat and check again, wenn it is then not all right I will repace it by a new one.
gr Marcel
 
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alettaenmarcel View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote alettaenmarcel Quote  Post ReplyReply Direct Link To This Post Posted: 13 February 2018 at 21:02
Update

Edited by alettaenmarcel - 24 February 2018 at 10:32
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Carlosailfan Quote  Post ReplyReply Direct Link To This Post Posted: 14 February 2018 at 06:52
Hi Marcel,
a hint from Jefa:


Best regards
/C
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alettaenmarcel View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote alettaenmarcel Quote  Post ReplyReply Direct Link To This Post Posted: 13 April 2018 at 07:13
rudder has been repaired and is mounted under the boat.
The boat went in the water at eastern and it feels very OK.



Edited by alettaenmarcel - 13 April 2018 at 07:14
Kids Dingys 72-79 ,Several Windsurfboards 79-86 OK dingy competitions 86-92 , Trotter Pandora Race 92-98, Friendship 28 Sport 98-05, Hanse 370 06-......
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