Blueboatman
Well-Known Member
Re Jonjo . Yes ,I was thinking of the practicalities of doing a really sound repair ,and was referring to the symptoms as described on the boatdesign.net/forum at the beginning of this thread . Clearly ,once a separation between hull and grid has occured ,due to inadequate keel support during the manufacturing process ,then .... My concern is that once that bond fails ,how does one determine whether the hull laminate ITSELF has been overstressed by the repeated flexure from the keel leverage.-take a core sample ,tap it with an 'ammer ,UV light ,crack detection fluids?
For my own piece of mind ,and obviously this is imho ,what i did to MY boat -and here is the key ,I had a little money ,I had a place to do it ,I had an affordable source of materials ,and I had the time so allowing a very thorough yet still economic repair-I bonded a grid onto the hull laminate and effectively relaminated the whole midships section of the hull itself ,3metres fore/aft and athwart up to the waterline ,which meant removing the interior etc.It was a 26 foot Pearson (USA ,mid-low end production boat ) .
Again ,imho Re Broken Bavaria examples , I would be concerned about the practicalities of rebonding the existing grid ,without actually removing enough interior as to enable the grid to be lifted up ,and the hull and grid properly keyed with a grinder..and at that point of dismantling ,it is so easy to ''go beyond'' and apply additional laminate across the whole pan ,as to leave no doubt whatsoever in the future as to the structural integrity of the Boat and manufactures reputation .
I do apologise if I was worrying you at all, it would indeed be helpful if a copy of the designers mod were to appear on the net , if only in the interest of transparency and reputation and in fairness to all existing owners .
For my own piece of mind ,and obviously this is imho ,what i did to MY boat -and here is the key ,I had a little money ,I had a place to do it ,I had an affordable source of materials ,and I had the time so allowing a very thorough yet still economic repair-I bonded a grid onto the hull laminate and effectively relaminated the whole midships section of the hull itself ,3metres fore/aft and athwart up to the waterline ,which meant removing the interior etc.It was a 26 foot Pearson (USA ,mid-low end production boat ) .
Again ,imho Re Broken Bavaria examples , I would be concerned about the practicalities of rebonding the existing grid ,without actually removing enough interior as to enable the grid to be lifted up ,and the hull and grid properly keyed with a grinder..and at that point of dismantling ,it is so easy to ''go beyond'' and apply additional laminate across the whole pan ,as to leave no doubt whatsoever in the future as to the structural integrity of the Boat and manufactures reputation .
I do apologise if I was worrying you at all, it would indeed be helpful if a copy of the designers mod were to appear on the net , if only in the interest of transparency and reputation and in fairness to all existing owners .
