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Boom on 355

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Hdajani View Drop Down
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Joined: 27 August 2011
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Hdajani Quote  Post ReplyReply Direct Link To This Post Topic: Boom on 355
    Posted: 28 May 2012 at 09:33
The boom on the 355 seem to be very fragile. We went for a normal gybe and it was bent and cracked. The pivot of the sheet in the middle of the boom and the light material used makes it very vulnerable.

Did anyone experience any issues with it? Any suggestions?

Thanks 
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Perttu View Drop Down
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Joined: 13 October 2006
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Perttu Quote  Post ReplyReply Direct Link To This Post Posted: 28 May 2012 at 15:07
Sorry to hear - is it Selden or Z-spar rig on your boat?

I did intentionally few hard gybes (24-26 knts true wind) last summer to test that everything was ok. No damages occured - and should not...

- Perttu
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Mirja View Drop Down
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Joined: 24 November 2011
Location: Bullandö Sthlm
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Mirja Quote  Post ReplyReply Direct Link To This Post Posted: 29 May 2012 at 12:36
Hello. I got 355 nr 18 with the Z-spar rigg.
We have been out there in 7 weeks last summer in the Stockholm arcipelago and a tour to Gotland.
Not very hard winds but still some good.
No problems with anything actually, ecept for the cooler that broke (guarantie repaired in the nerest harbor, very smooth).
 
Fair winds
captain of
SY.Mymlan
 
Mirja Sy Mymlan 355 18
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Hdajani View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Hdajani Quote  Post ReplyReply Direct Link To This Post Posted: 02 June 2012 at 11:06
I have the z-spar. If you look at where the mainsheet is mounted, it is almost 33% of the way to the Tack. The force from that point to the end is just too big for the type of material used. Initially, it bends a little, then it just breaks.
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panos View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote panos Quote  Post ReplyReply Direct Link To This Post Posted: 02 June 2012 at 11:23
Hi,

Mid boom sheeting is IMHO just for the B-boats : 80% in a marina, 15% motoring and 5% sailing with perfect conditions only.
Panos

Hanse 630e - selling her -
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Mirja View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Mirja Quote  Post ReplyReply Direct Link To This Post Posted: 02 June 2012 at 17:10
Hello.
If what you point out. Is true. There must be a lot of booms breaking down?
Of course i will check my boom regulary after this. Still, i must say if there is something wrong with the construction it must be a case for the insurance company and a case for Z-spar (and others) to reinforce there construction?
And Panos, we do sail in most winds and in most conditions in spite of the mid boom sheetingWink  
 
Regards
SY.Mymlan
Mirja Sy Mymlan 355 18
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Perttu View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Perttu Quote  Post ReplyReply Direct Link To This Post Posted: 02 June 2012 at 18:31
Could you Hdajani eloborate the incident a bit further... Like exact wind & sea conditions, how many hours used since new, how many uneventful gybes prior to incident etc... Also is it going to be case with insurance company or with the manufacturer... Photo of the damage would be fantastic too...

Your set up is exactly same as mine and I would like to understand cause of the incident to perhaps avoid similar occasion. And lets hope you get things sorted out quickly and enjoy sailing again...

I dont know what Panos means with B-Boats but I feel trimming options are more narrow without full cockpit traveller. But structural strength should not be issue with this desing. Yes there are loads but they are not unpredictable and can be easily taken care with proper engineering...
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panos View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote panos Quote  Post ReplyReply Direct Link To This Post Posted: 03 June 2012 at 10:16
Hi,

The main reason the boating industry adopted the tween rudders and mid boom sheeting is to free the cockpit so that the guests have a nice and easy life while in the marina.

When I ordered my boat the Hanse moto was something like : Build by sailors for sailors

Now it sounds like : Hanse sailing a great feeling

I claim that "sailors" would sacrifice "feeling good" for safety in a storm.

B' boat German manufacturers destroyed the sailing boat industry!

If a worldwide stormy period approaches (like sun experts predict) I am sure that the current trend will revert and good boats will start to reappear.
Panos

Hanse 630e - selling her -
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Ericschuit View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Ericschuit Quote  Post ReplyReply Direct Link To This Post Posted: 26 June 2012 at 23:14
Last saturday sailed with 22knots and 1 riff and killed my boom with a small downwind switch.

VEGA
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handsome View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote handsome Quote  Post ReplyReply Direct Link To This Post Posted: 27 June 2012 at 11:19
I have a 350 and also suffered a boombrake with the z rigg when I was on a reaching course with winds above 18 knots. I notices that when the boat was rigged they only used two block instead of the three point of attachment the boom offers. Also my sheet for the high aspect did not have a block. Both the mast as the boom are suffering to much when used in winds more than 16 knots if not rigged properly.
HANDSOME
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