Hull strength

But you could have a bigger Hallberg Rassy in great condition for much less... PM me if you're interested in one of the last of the fabulous 352s.
 
Oscarpop said:
So what is the difference? Is there any? Does A Malo,HR,Southerly have huge amounts of increased strength over the AWB.

Thanks.
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I doubt it. There is no point in making hulls thicker than necesary - all that would do is increase cost and increase weight to achieve nothing. And these days the design technology is such that designers know where to put thickness and where it isnt necessary unlike the old days of making laminates thich and full of filler for safety.

That said there is a whole range of hull constructions from simple hand laid polyester to vacuum infused poly , vinyl and epoxy not forgetting the use of sandwich construction.

The big difference between the likes of Southerly and the Swedes on the one hand and Bav and Benny on the other is the quality of internal fit out. Is it all veneered MDF or is there lots of expensive solid hardwood. Ironed on edgning veneers or solid trim.
 
wotayottie said:
The big difference between the likes of Southerly and the Swedes on the one hand and Bav and Benny on the other is the quality of internal fit out. Is it all veneered MDF or is there lots of expensive solid hardwood. Ironed on edgning veneers or solid trim.
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And that's just between the new boats - the older ones (Bav/Ben/Jen) from 1990s to 2001 at least used veneered ply - iirc Bavs were one of the last to move over to iron on MFI furniture that seems to be the vogue in the "cheap" boats these days.
 
The thing is, when I ordered my Hanse I had her fitted in Cherry wood. It is all veneer faced marine ply. But so is the Southerly.

As previously stated, I spent good twenty minutes on a newish 110 last week and the joinery was no better. The finish no superior. The galley drawers on both boats metal framed, veneer faced ply fronts. The fiddles are curved and veneered ply on both in places, and solid on both in places.

I can also vouch that none of the edging on my Hanse is ironed on.

I do struggle to see the huge difference between the two.
 
Twister_Ken said:
steelframe_150.jpg
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I hope that isn't your anchor!
 
wotayottie said:
I doubt it. There is no point in making hulls thicker than necesary - all that would do is increase cost and increase weight to achieve nothing. And these days the design technology is such that designers know where to put thickness and where it isnt necessary unlike the old days of making laminates thich and full of filler for safety.
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I'm sure that's true with regard to the hull's ability to support structural loads, but what about abrasion, particularly over a protracted period, e.g. when being pounded onto rocks. I saw a lightly built GRP yacht which had come off its mooring at Ravenglass and been driven against a low stone wall. The skin was rubbed through along the bilge and the boat filled and sunk. The laminate appeared to be very thin, about 5 mm or so. I should have thought a thicker laminate would have held out for longer and perhaps allowed the boat to be saved.
 
JimC said:
.... I should have thought a thicker laminate would have held out for longer and perhaps allowed the boat to be saved.
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Probably not much longer as the toughness of the rock compared to the FRP is so much larger that anything between, say, 5 mm and 50 mm will rub through quite quickly in relative terms compared to the time to rescue her.
 
JimC said:
I'm sure that's true with regard to the hull's ability to support structural loads, but what about abrasion, particularly over a protracted period, e.g. when being pounded onto rocks. I saw a lightly built GRP yacht which had come off its mooring at Ravenglass and been driven against a low stone wall. The skin was rubbed through along the bilge and the boat filled and sunk. The laminate appeared to be very thin, about 5 mm or so. I should have thought a thicker laminate would have held out for longer and perhaps allowed the boat to be saved.
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+1
 
JimC said:
I'm sure that's true with regard to the hull's ability to support structural loads, but what about abrasion, particularly over a protracted period, e.g. when being pounded onto rocks. I saw a lightly built GRP yacht which had come off its mooring at Ravenglass and been driven against a low stone wall. The skin was rubbed through along the bilge and the boat filled and sunk. The laminate appeared to be very thin, about 5 mm or so. I should have thought a thicker laminate would have held out for longer and perhaps allowed the boat to be saved.
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All part of risk assessment. How common is such a scenario? If you are using a boat in an environment where this is likely then you would guard against - for example by having a steel boat if you habitually sail in coral waters.

For the vast majority of boats the chances of running aground on rocks is just about zero.
 
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