63' Bertram Possibly stuffed off SC???
#21
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A Bertram 630 weighs over 90,000 lbs. The boat was also supposed to be traveling around 25 knots, not 40. It is reported in that thread that seas were under 6 ft. I am no expert, but in my opinion a 63 foot sportfish should not be stuffing under those conditions.
#22
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Im not buying the buoy theory as a lone cause.
Id say this, plus existing damage,plus a big wave hit - plus manufacturing defects.
Look at how the fibreglass pulls away from the core material indicating they were never fused together to begin with.
Core material should be bonded so thoroughly that it becomes one piece not a sandwich of layer loosely held together.
This is what resin infusion and vacuum bagging are employed in the mafgr process for - to insure the complete bond.
Uncle Dave
Id say this, plus existing damage,plus a big wave hit - plus manufacturing defects.
Look at how the fibreglass pulls away from the core material indicating they were never fused together to begin with.
Core material should be bonded so thoroughly that it becomes one piece not a sandwich of layer loosely held together.
This is what resin infusion and vacuum bagging are employed in the mafgr process for - to insure the complete bond.
Uncle Dave
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I didn't read everything on the other site, but I would think they had radar on and could have seen most anything in front of them.
Last edited by rush; 01-13-2010 at 02:06 PM.
#24
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An investigation is underway to determine what sank "Absolutely", a Bertram 630 in November. Bertram has developed its line of sportfishermen to a point where they are fast and light, making them more like their high performance "magnum" counterparts than the heavy Hatterases that they have been compared to in the past.
Look at the pics taken of "Absolutely" as she sits on the bottom. Note the fore-deck and the delimitation of the entry just above the waterline at the bow. Brings back memories of "The Heat is On" in Key West.
http://www.yachtforums.com/forums/ge...ram-630-a.html
T.
Look at the pics taken of "Absolutely" as she sits on the bottom. Note the fore-deck and the delimitation of the entry just above the waterline at the bow. Brings back memories of "The Heat is On" in Key West.
http://www.yachtforums.com/forums/ge...ram-630-a.html
T.
#25
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There is no way that a 63 Bertram would have gone down as a result of impact with that buoy or one like it. I personally have seen a 73 Rybovitch hit a Large Chanel Marker (Nun) and sustain far less damage than this boat has. Also 32 Intrepid collided with a Large Can at 35 mph and finally went down after 2 hours, and sustained damage at the point of impact, but the entire boat didn't delaminate.
IMO the transom came off as a result of the water being forced through the hull, and traveling through the lower lazzarette and bilge area ripping the transom off with the force of the water. This is not an isolated incident with newer Bertrams, just the worst case so far, but I am sure there are more out there.
I have over 6000 hours at the helm of several large Sport Fish Boats, and the 63 Bertram that I ran for a customer shuddered and flexed in a big sea, where as the Vikings that I ran more frequently have a solid feel. There may have been several factors involved, but the construction of the boat and their layup deffinately failed.
IMO the transom came off as a result of the water being forced through the hull, and traveling through the lower lazzarette and bilge area ripping the transom off with the force of the water. This is not an isolated incident with newer Bertrams, just the worst case so far, but I am sure there are more out there.
I have over 6000 hours at the helm of several large Sport Fish Boats, and the 63 Bertram that I ran for a customer shuddered and flexed in a big sea, where as the Vikings that I ran more frequently have a solid feel. There may have been several factors involved, but the construction of the boat and their layup deffinately failed.
#28
Neno the mind boggler
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Thats usually what happens when a core is not bagged or not bagged properly or is dry. Just the surface of the core is bonded with no cross linking or very poor resin penetration. Although from the pics the dark lines do indicate resin presence so its tough to tell. Man this boat really is a mess. What were the seas that day? I didnt get a chance to read all the way through yet.
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Throttles- Cleveland Construction 377 Talon
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Throttles- Cleveland Construction 377 Talon
08 OPA Class 1 National Champion
08 Class 1 Geico Triple Crown Champion
08 OPA High Points Champion
10 OPA Class 1 National Champion ( happy now Ed! )
#29
Neno the mind boggler
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oops, just saw this. Yea thats a lot of available forces there. Delams only need a small breach to become catastrophic but man this thing is a mess.
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Throttles- Cleveland Construction 377 Talon
08 OPA Class 1 National Champion
08 Class 1 Geico Triple Crown Champion
08 OPA High Points Champion
10 OPA Class 1 National Champion ( happy now Ed! )
Throttles- Cleveland Construction 377 Talon
08 OPA Class 1 National Champion
08 Class 1 Geico Triple Crown Champion
08 OPA High Points Champion
10 OPA Class 1 National Champion ( happy now Ed! )
#30
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