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PostPosted: Sun Jul 31, 2016 4:00 pm 
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My front crossbar snapped in 2 at the point where the mast ball and thread passes through. There are no signs of corrosion on the inside or outside of the fractured site.

I use the wave in choppy conditions and recently have rigged up a bigger mainsail and jib.

The boat is a 2005 model and I thought that it should not snap after just 11 years.

Any comments please?


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PostPosted: Mon Aug 01, 2016 10:28 am 
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Quote:
and recently have rigged up a bigger mainsail and jib


Seems like your answer...

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PostPosted: Mon Aug 01, 2016 6:57 pm 
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I'm always amazed at the number of boat owners who just assume they can overload and overstress a boat (any boat) and are then surprised when they experience a failure of some sort.

Looking at the Wave front crossbar (without the benefit of a dolphin striker) it should be obvious there are stress load limitations.


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PostPosted: Tue Aug 02, 2016 9:02 am 
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BTW... never have heard of a Wave forward beam failing. They are thick!

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PostPosted: Wed Aug 03, 2016 4:23 pm 
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Waves have a very solid beam ie. thick. What did you do with the main to increase its size, not a taller mast by chance?


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PostPosted: Wed Aug 03, 2016 7:10 pm 
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Take a really close look at the break with a good magnifier (or get a high resolution camera and zoom after taking the photo). You should be able to tell whether it was a ductile failure or a brittle failure. That'd tell you whether or not it was fatigue from shock loading going over/through chop or overstress due to more sail. 11 years of repeated pounding would be my guess given the location at the weakest part. Aluminum is great stuff but it fatigues eventually. Is there much slop at the beam/float connection?

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PostPosted: Sat Aug 20, 2016 11:29 am 
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Many thanks for your posts; I have been using the standard sails till 1 month ago. I use the most in up to 18 knots and do sail in choppy conditions. The new mainsail and jib are 20% larger but use the same mast.

Looking at the breaking point there is a white 2 mm margin but no pitting which may have weakened this area.

I do not usually change the mast side stay tension but leave them always tensioned for light to moderate airs.

I appreciate greatly your advice.


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PostPosted: Sun Aug 21, 2016 8:27 am 
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Sounds like fatigue failure based on the description. Think of that chop as "accelerated aging". You might want to look at your shrouds and think about replacing them, as well. Hate to think about replacing the bar only to lose the mast down the road a few...

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PostPosted: Sun Aug 21, 2016 10:44 pm 
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Out of interest how did you make a main that is 20% larger than standard with the same mast? Don't suppose you have a photo by chance?

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PostPosted: Mon Aug 22, 2016 9:15 am 
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And where is this boat? European versions have an internal I-Beam ... US has an extra thick extrusion.

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PostPosted: Tue Aug 23, 2016 4:15 am 
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I sail in Gozo Malta 50 miles south of Sicily. The boat is European and made in France. Image


Sent from my iPhone using Tapatalk


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PostPosted: Tue Aug 23, 2016 4:16 am 
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The larger mainsail and jib were ordered from Calvert Sails


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PostPosted: Tue Aug 23, 2016 4:20 am 
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Will send a photo of the larger mainsail


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PostPosted: Tue Aug 23, 2016 7:48 am 
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Does that bolt hold the mast ball? Do you have a mast step casting on the other side?
My Wave has this masst step:
Image


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PostPosted: Tue Aug 23, 2016 8:41 am 
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Ahhh... as I suspected... not the US designed crossbar or mast step. Contact Hobie Cat Europe for any guidance.

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