Thanks for the information. Having had 4 boat over 45 years, the last two with a keel matrix, I've never lost a keel. I have heard of significant damage in our race fleet. I have experienced a few groundings but have not damaged the matrix but they were under two knots or dragging thru sand. We have had a few very hard groundings in the fleet with matrix boats, on rocks at over 2 to 7 knots. These resulted in major damage, tearing the hull open at the matrix edges, front and back. In all of these cases the keel never separated from the hull. The crews were able to get the boat back, sometimes sinking in the lift cradle. None the less I have always inspected my hull for delamination etc.
Especially if you're a family man, or give a flying fk about the safety of your wife, your family and your crew. Esp if you are ocean crossing and prefer the odds of actually getting there in safety and in style, instead of how fast you might not...
Can you do an in depth video on stray current causes and possible fixes and how boats are electrically grounded properly and issues to look for. Maybe a 2 part series or something like that. Thanks for these vids. Nice job.
Would it be bad to proactively glass over/tab in an undamaged factory glued in matrix because 1) it would obscure from observation future development of cracking/failure that needs addressing, and/or 2) be falsely yet logically construed by a surveyor as (DIY) repair of a failure of the keel matrix? Please preface any answers to source from logical reasoning or an experts experience with the experts credential (I ll take the obvious required leap of faith)
We see boats all the time losing their keels? Really? Can you please share the statistics that allow such a statement to be made? I don’t mean anecdotes here (in case anyone is tempted to bring up once again the Cheeki Rafiki). Since this is the opening statement of the video, the relevance of that discussion rests on hard, reliable data that will statistically show us the magnitude of the problem.
He can't. Because boats dont loose their keels all the time. If you do some thorough research you will find that there are 70-80 confirmed cases in the last 40-50 years. I dont know how many million sailboats there are, but the chance statistically is 0,0003 percent. Just wait till he finds out that new airplanes are glued together.
Fun fact. I purchased a boat 2 years ago that the keel came off and partially sunk the vessel and it had to be salvaged. The ''statistics'' online are not complete as a very large portion of boat incidents or accidents are NOT reported by boat owners or repaired through insurance claims. My sister purchased a similar boat that also required similar repairs before being seaworthy. From the sailors I have met, it's not a uncommon problem.
@@GordonDavis-j8q What type of boat? Was it old? How was the maintenance? Do you have pictures? What was the cause of the keel falling off? How do you know that most cases are not reported? And reported to who? Governments? Police? Insurance? How old was you sistes boat? What manufacturer? Was the maintenance up to date? Pictures? Why did it fall off?
The International Sailing Federation (ISAF) has a database of reported keel failures since 1984. The database includes 72 cases and 24 lives lost. That's one every six months for 40 years. That we actually know about. Notable accidents Moquini: 2005, lost its keel and sank during a yacht race from Mauritius to Durban, killing all six crew members. Excalibur: 2003, the racing yacht Excalibur sank after losing its keel near Port Stephens, Australia, killing four of the six crew. Hooligan V: In 2007, the production raceboat Hooligan V lost its keel and capsized, killing one crew member. Those are racing yacht tragic fatalities. There's plenty more. Caveat Emptor. Be honest and stop playing yourself. It's not just Cheeki Rafiki now, is it?
How do you account for all the boats that arent recorded by that particular data base? Uninsured vessels, unreported vessels? I have a boat that sank that is NOT on that data base. Be practical.
Thanks for the information. Having had 4 boat over 45 years, the last two with a keel matrix, I've never lost a keel. I have heard of significant damage in our race fleet. I have experienced a few groundings but have not damaged the matrix but they were under two knots or dragging thru sand.
We have had a few very hard groundings in the fleet with matrix boats, on rocks at over 2 to 7 knots. These resulted in major damage, tearing the hull open at the matrix edges, front and back. In all of these cases the keel never separated from the hull. The crews were able to get the boat back, sometimes sinking in the lift cradle.
None the less I have always inspected my hull for delamination etc.
Great video. Yet another good reason to buy an Island Packet.
Especially if you're a family man, or give a flying fk about the safety of your wife, your family and your crew. Esp if you are ocean crossing and prefer the odds of actually getting there in safety and in style, instead of how fast you might not...
Can you do an in depth video on stray current causes and possible fixes and how boats are electrically grounded properly and issues to look for. Maybe a 2 part series or something like that. Thanks for these vids. Nice job.
Another very helpful and insightful video. Thanks!
Thank you
Battle for the boats continues... Ty Tim , keep fighting these overpriced trash cans and the other side of the coin
Another very informative video. Provide greater understanding of keel systems are designed.
Would it be bad to proactively glass over/tab in an undamaged factory glued in matrix because 1) it would obscure from observation future development of cracking/failure that needs addressing, and/or 2) be falsely yet logically construed by a surveyor as (DIY) repair of a failure of the keel matrix? Please preface any answers to source from logical reasoning or an experts experience with the experts credential (I ll take the obvious required leap of faith)
We see boats all the time losing their keels? Really? Can you please share the statistics that allow such a statement to be made? I don’t mean anecdotes here (in case anyone is tempted to bring up once again the Cheeki Rafiki). Since this is the opening statement of the video, the relevance of that discussion rests on hard, reliable data that will statistically show us the magnitude of the problem.
He can't. Because boats dont loose their keels all the time. If you do some thorough research you will find that there are 70-80 confirmed cases in the last 40-50 years. I dont know how many million sailboats there are, but the chance statistically is 0,0003 percent.
Just wait till he finds out that new airplanes are glued together.
Fun fact. I purchased a boat 2 years ago that the keel came off and partially sunk the vessel and it had to be salvaged. The ''statistics'' online are not complete as a very large portion of boat incidents or accidents are NOT reported by boat owners or repaired through insurance claims. My sister purchased a similar boat that also required similar repairs before being seaworthy. From the sailors I have met, it's not a uncommon problem.
@@GordonDavis-j8q What type of boat? Was it old? How was the maintenance? Do you have pictures? What was the cause of the keel falling off? How do you know that most cases are not reported? And reported to who? Governments? Police? Insurance?
How old was you sistes boat? What manufacturer? Was the maintenance up to date? Pictures? Why did it fall off?
71 lost keels out of 2600000 sailing vessels world wide.
So X-yacht of Denmark is cheap production boats, since they choose to have fin keels??? You are absolute out of reach.
The International Sailing Federation (ISAF) has a database of reported keel failures since 1984. The database includes 72 cases and 24 lives lost. That's one every six months for 40 years. That we actually know about.
Notable accidents
Moquini: 2005, lost its keel and sank during a yacht race from Mauritius to Durban, killing all six crew members.
Excalibur: 2003, the racing yacht Excalibur sank after losing its keel near Port Stephens, Australia, killing four of the six crew.
Hooligan V: In 2007, the production raceboat Hooligan V lost its keel and capsized, killing one crew member.
Those are racing yacht tragic fatalities.
There's plenty more. Caveat Emptor.
Be honest and stop playing yourself.
It's not just Cheeki Rafiki now, is it?
How do you account for all the boats that arent recorded by that particular data base? Uninsured vessels, unreported vessels? I have a boat that sank that is NOT on that data base. Be practical.
So do I. And... be practical about what, exactly?
@@GordonDavis-j8q How do you know it's not in the database? Who made your boat? Was it old? Did it had prior damage?