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It broke

Printed From: myHanse.com
Category: Hints and Tips
Forum Name: 430
Forum Description: 430 Hints and Tips
URL: http://www.myhanse.com/forum_posts.asp?TID=3819
Printed Date: 20 August 2018 at 05:40
Software Version: Web Wiz Forums 11.04 - http://www.webwizforums.com


Topic: It broke
Posted By: rtchina
Subject: It broke
Date Posted: 03 April 2010 at 10:25
Hi, first trip of the year, from Punat in Croatia to Zadar. Course roughly SE so of course first day the wind was SE, from 15 to 25 knots. Got just about half way and put into Navalja at dusk, Second day the wind veered gradually to SW so had a 4 hour close hauled on the port tack to within 1 hour of Zadar with winds 9 to 15 knots. Absolutely great sail and mostly under Simrad autopilot, a great piece of kit.
However, at some stage the lower vange fitting bent and shattered and I really have no idea why. On day one, things were pretty tight and on the wind all the time so I really can't see how this can happen. Any ideas gratefully received.

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430e Ella Jane - Greece



Replies:
Posted By: Adam
Date Posted: 06 April 2010 at 16:01
The same thing happened to me. did not even notice it until we had mored for the day, happened on the second day I had the boat, no false jibs or any sudden maneuvers. Sparecraft dealer in norway blames me.



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/Jørgen Adam Holen

wherever you go, there you are.
"firefly" 430e 2008


Posted By: rtchina
Date Posted: 06 April 2010 at 16:13
Very curious, and thank goodness I am not alone! Nobody has offered any suggestions at all.

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430e Ella Jane - Greece


Posted By: Terry
Date Posted: 06 April 2010 at 16:58
also happened to me , they replaced with a new diff type.

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Terry
"ELYSIUM" 430e


Posted By: Adam
Date Posted: 07 April 2010 at 09:11
I replaced it with a identical one, have not happened again even in a lot rougher conditions. I believe it was a material weakness, or damage sustained to it before it was mounted on the boat. Terry, did they offer any comments as to why it might have happened? Do you have any pictures? I'm still claiming a refund under warranty, so any further evidence would help me.

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/Jørgen Adam Holen

wherever you go, there you are.
"firefly" 430e 2008


Posted By: Terry
Date Posted: 07 April 2010 at 09:30
I think because it was cast not forged, can't remember which way round.

but they made a new one for me and it was a little different.
cheers.

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Terry
"ELYSIUM" 430e


Posted By: Timeout
Date Posted: 07 April 2010 at 13:14
I had a 430 a couple of weeks last year. The same happened to me. I don't know the reason, but we had heavy wind from behind.

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Timeout
Hanse 470e


Posted By: Nereide
Date Posted: 04 May 2010 at 15:57
I can only think that if there were no uncontrolled manoeuvers,
it could be that the wang has hard in, (black down haul on photo) to sail close hauled, and then on following leg, reach/broad reach, the mainsail  sheet was hardened, but not the wang. this would bring force and pressure on the wang fitting.


Posted By: landlocked
Date Posted: 06 May 2010 at 03:59
This is really puzzling.  It seems to me that you can't really put much compression force on the vang, and tightening the vang can only put a tension force on the mast fitting, which wouldn't bend it like that.
 
If the boom was allowed to swing far enough forward the mast would eventually interfere with the movement of the vang and that could bend the fitting, but it looks to me like the boom would bump into the shrouds before this happens right?
 
I certainly hope not to figure this out "the hard way" Confused


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"Kerkyra" 400e #042


Posted By: Hol2
Date Posted: 06 May 2010 at 06:31

Hi

 

I have tried in on a H470 but it is the same in Principe

The problem is if the vang is pressed together from tension on the mainsheet

( and the vang is fully compressed) it will bend the fitting like on the picture.

Move the vang 4-5 cm more backwards on the boom so it can go further down

You can ask your rigger or Dealer for help

 

Best Regards

Bo Hold

Marineparken.dk



Posted By: Alain & Anne
Date Posted: 09 May 2010 at 23:12
Hi All
 The inside tube could be too long as it was for us I cut it 5cm and I bolted the two fittings as you can see on the two pictures.
 Worked since  perfectly for more than 12 000 NM






-------------
UHAMBO 430e#004
White hull-teck deck-Yanmar 55hp-long range cruising
OCC-RCYC

Our blog: www.uhambo.fr



Posted By: rtchina
Date Posted: 10 May 2010 at 05:15
That's excellent but can you tell me the size of the threaded rod that you used. It seems to me it should be 15mm but I have been unable to find that as a stock size.
thanks


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430e Ella Jane - Greece


Posted By: Alain & Anne
Date Posted: 10 May 2010 at 11:00
In fact the bolt passes through the existing tube which was cut  to fit excatly with the fitting's width. Thre are two washers and two bolts on each side.
The diameter is 14mm.

Alain


-------------
UHAMBO 430e#004
White hull-teck deck-Yanmar 55hp-long range cruising
OCC-RCYC

Our blog: www.uhambo.fr



Posted By: rtchina
Date Posted: 10 May 2010 at 11:10
Very many thanks.

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430e Ella Jane - Greece


Posted By: landlocked
Date Posted: 10 May 2010 at 22:54
Originally posted by Hol2 Hol2 wrote:

Hi

 

I have tried in on a H470 but it is the same in Principe

The problem is if the vang is pressed together from tension on the mainsheet

( and the vang is fully compressed) it will bend the fitting like on the picture.

Move the vang 4-5 cm more backwards on the boom so it can go further down

You can ask your rigger or Dealer for help

 

Best Regards

Bo Hold

Marineparken.dk

 
Thanks for this solution to the puzzel Bo, this makes sense.  I know what to check for now to see if this can happen on my boat and will try some gentle experiments with the sail down.


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"Kerkyra" 400e #042


Posted By: Alain & Anne
Date Posted: 11 May 2010 at 14:37
Yes!
But that would not save the end fittings from breaking when bent too much.

-------------
UHAMBO 430e#004
White hull-teck deck-Yanmar 55hp-long range cruising
OCC-RCYC

Our blog: www.uhambo.fr



Posted By: Hol2
Date Posted: 13 May 2010 at 13:32
Dear Alain
Your mainsail is cut to ca 90 degres luff-foot
if you place the vang so it can go further down  ca 98 degres
You will not breake it more under sail, but take care when you
reef the sail , it can some times let the boom drop a little more.
 
Bo Hold
 


Posted By: Alain & Anne
Date Posted: 20 May 2010 at 15:51
Dear Bo,

Not sure that will avoid the end fittings to breaking in torsion if the pin is too loose!
The second point is that by moving the vang you will change the compositions of the pressure on it and you are not sure that the internal tube won't get stuck in the end fitting. That's why I did cut the tube which is more les a guide for the spring in order to avoid it.


-------------
UHAMBO 430e#004
White hull-teck deck-Yanmar 55hp-long range cruising
OCC-RCYC

Our blog: www.uhambo.fr



Posted By: Tomix
Date Posted: 26 May 2018 at 23:12
The Same thing happened to me today with no obvious reason. I just tightened the main sheet and the boom Vang must have come to its upmost compression point. The fixture plate bend and the Vang broke off. Where can I get spare parts? Or should I look for a total replacement of The vang?


Posted By: rtchina
Date Posted: 27 May 2018 at 06:40
I managed to get a replacement from the Hanse people in the UK. I have had no problems since then.
Roger


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430e Ella Jane - Greece


Posted By: Tomix
Date Posted: 27 May 2018 at 08:30
Thank you Roger, I will try my Hanse Dealer in Portugal


Posted By: Ratbasher
Date Posted: 13 June 2018 at 11:32
Looking at the original photo the stainless steel tang appears to have suffered some plastic deformation before the vang fitting snapped.  This suggests that the process might have been gradual and it would seem a good idea to include this as part of regular rigging checks.

I don't think the fitting would have broken because of compression alone but due to mis-alignment with the tang.  Something appears to have stopped the tang turning properly and this is what I'll be checking for on my own boat under various conditions.

For anyone with a specific query, on a previous vang issue I found the Managing Director of Eurospars UK to be highly knowledgeable and most willing to help.  I'm sure he wouldn't mind contact from anyone overseas; details below.

Adrian Hood
Adrian@eurospars

Good luck




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Rat

Hanse 400, south coast UK


Posted By: Ratbasher
Date Posted: 13 June 2018 at 11:34
Sorry - Adrian@eurospars.com.  Finger-trouble with wretched computer.

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Rat

Hanse 400, south coast UK



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