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#11
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Yacht sunk by Ferry
On Thu, 12 Apr 2007 19:04:25 -0400, Peter Hendra wrote:
Great idea. I have been in situations where the ships can visually see me but I do not appear on their radar screen - sea state and waves etc. - I have the old metal "forget what it's called" aluminium sphere permanently swinging at my cross trees. The best way to be seen on someone else's radar is to have your own radar turned on. Matt O. |
#12
posted to rec.boats.cruising
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Yacht sunk by Ferry
"otnmbrd" wrote in message 25.201... "Capt. JG" wrote in : No doubt it's a net positive....but not a cureall.... and unless you consider the possible limitations, not only in the system but also in it's usage, then you are still going to get caught short at the wrong time. The ability to call a vessel by name is probably one of it's greatest benefits.....but knowing the name and then getting an answer to a call is still not guaranteed to be successful. I like it, I use it, but I frequently see problems with reception while using it and I stay ready to try different channels while calling and try to watch my "Boston" accent and tendency to talk fast. otn Yah, like you really need it driving a little pilot boat in and out of a harbor in a marked channel... Lame, otn, lame! Wilbur Hubbard |
#13
posted to rec.boats.cruising
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Yacht sunk by Ferry
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#14
posted to rec.boats.cruising
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Yacht sunk by Ferry
On Fri, 13 Apr 2007 00:32:27 -0400, Matt O'Toole
wrote: On Thu, 12 Apr 2007 19:04:25 -0400, Peter Hendra wrote: Great idea. I have been in situations where the ships can visually see me but I do not appear on their radar screen - sea state and waves etc. - I have the old metal "forget what it's called" aluminium sphere permanently swinging at my cross trees. The best way to be seen on someone else's radar is to have your own radar turned on. Matt O. Great idea Matt, That's fine if you have radar which a lot of yachrts crossing the oceans don 't. It's also fine so long as you don't mind turning the engine on to charge the batteries. To have the radar on 24x7 means a lot of battery charging even if you use the sleep/sweep function that some have. There are other drains on power - eg navigation lights etc. Technology is there but in practice it may not be practical. regards Peter Hendra |
#15
posted to rec.boats.cruising
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Yacht sunk by Ferry
On Fri, 13 Apr 2007 00:32:27 -0400, Matt O'Toole wrote: On Thu, 12 Apr 2007 19:04:25 -0400, Peter Hendra wrote: Great idea. I have been in situations where the ships can visually see me but I do not appear on their radar screen - sea state and waves etc. - I have the old metal "forget what it's called" aluminium sphere permanently swinging at my cross trees. The best way to be seen on someone else's radar is to have your own radar turned on. Matt O. Ok, I gotta ask...... how will this help? otn |
#16
posted to rec.boats.cruising
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Yacht sunk by Ferry
* Rick B. wrote, On 4/13/2007 7:18 PM:
I wish the technology with fuel cells would advance far enough to be economical to address applications of this nature. What type of fuel cells are you talking about? The fuels cells most people refer to convert hydrogen to electricity. But the hydrogen is either taken on as fuel requiring high pressure tanks and hydrogen filling stations everywhere, or its created with electricity, and thus works just like a battery. There are maybe reasons why this works for cars, but it isn't very practical for boats. |
#17
posted to rec.boats.cruising
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Yacht sunk by Ferry
On Fri, 13 Apr 2007 23:43:47 GMT, otnmbrd
wrote: On Fri, 13 Apr 2007 00:32:27 -0400, Matt O'Toole wrote: On Thu, 12 Apr 2007 19:04:25 -0400, Peter Hendra wrote: Great idea. I have been in situations where the ships can visually see me but I do not appear on their radar screen - sea state and waves etc. - I have the old metal "forget what it's called" aluminium sphere permanently swinging at my cross trees. The best way to be seen on someone else's radar is to have your own radar turned on. Matt O. Ok, I gotta ask...... how will this help? otn Quite simply, if you are on watch you can glance at the radar when you do your "stand up and slowly scan the horizon 360 degrees with your peripheral vision" The oncoming ship may not see you at all or even be aware of your presence but at least you can take avoiding action. Also, if you have a guard zone set, an audible alarm will warn you of approaching shipping. I do not want to place my life in the hands of someone I do not know and whom I cannot ensure is attending diligently to his instruments and thus I take sole responsibility for not being run down by a larger vessel. I have installed external piezo alarms (a few dollars each) of the loud lazarus variety (awaken the dead) on all of my instruments - GPS for anchor drag, wind for increase above a set level, depth and so on. I am in the process of installing a seatalk one for the Raymarine radar as the unit's internal one is not loud enough. I couldn't do it for my last solo sail as it needs a "box" to attach an alarm to. None of this is intended to allow me to armchair sail. They are merely an attempt to make life easier and longer. At anchor now for years with a 60lb anchor down on 5:1 depth of chain, I can sleep more soundly knowing that should the wind turn or the anchor drag, I will be awakened from the deepest sleep by a strident alarm that can be heard on the other side of the planet. It's amazing how much better one sleeps. Note - I test this alarm very often. When it does go off in the night I don't even have to think. My body leaps out of bed and heads towards the deck, followed by my mind shortly thereafter. Anyone who neglects to add a $7 peizo, available from any electronics shop (make sure they are 12 volt) is avoiding very cheap and very easily installed insurance and peace of mind. cheers Peter |
#18
posted to rec.boats.cruising
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Yacht sunk by Ferry
All understood, Peter. My question was directed at Matt O's statement "The
best way to be seen on someone else's radar is to have your own radar turned on." otn Peter Hendra wrote in : On Fri, 13 Apr 2007 23:43:47 GMT, otnmbrd wrote: On Fri, 13 Apr 2007 00:32:27 -0400, Matt O'Toole wrote: On Thu, 12 Apr 2007 19:04:25 -0400, Peter Hendra wrote: Great idea. I have been in situations where the ships can visually see me but I do not appear on their radar screen - sea state and waves etc. - I have the old metal "forget what it's called" aluminium sphere permanently swinging at my cross trees. The best way to be seen on someone else's radar is to have your own radar turned on. Matt O. Ok, I gotta ask...... how will this help? otn Quite simply, if you are on watch you can glance at the radar when you do your "stand up and slowly scan the horizon 360 degrees with your peripheral vision" The oncoming ship may not see you at all or even be aware of your presence but at least you can take avoiding action. Also, if you have a guard zone set, an audible alarm will warn you of approaching shipping. I do not want to place my life in the hands of someone I do not know and whom I cannot ensure is attending diligently to his instruments and thus I take sole responsibility for not being run down by a larger vessel. I have installed external piezo alarms (a few dollars each) of the loud lazarus variety (awaken the dead) on all of my instruments - GPS for anchor drag, wind for increase above a set level, depth and so on. I am in the process of installing a seatalk one for the Raymarine radar as the unit's internal one is not loud enough. I couldn't do it for my last solo sail as it needs a "box" to attach an alarm to. None of this is intended to allow me to armchair sail. They are merely an attempt to make life easier and longer. At anchor now for years with a 60lb anchor down on 5:1 depth of chain, I can sleep more soundly knowing that should the wind turn or the anchor drag, I will be awakened from the deepest sleep by a strident alarm that can be heard on the other side of the planet. It's amazing how much better one sleeps. Note - I test this alarm very often. When it does go off in the night I don't even have to think. My body leaps out of bed and heads towards the deck, followed by my mind shortly thereafter. Anyone who neglects to add a $7 peizo, available from any electronics shop (make sure they are 12 volt) is avoiding very cheap and very easily installed insurance and peace of mind. cheers Peter |
#19
posted to rec.boats.cruising
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Yacht sunk by Ferry
"Peter Hendra" wrote in message ... On Fri, 13 Apr 2007 23:43:47 GMT, otnmbrd wrote: On Fri, 13 Apr 2007 00:32:27 -0400, Matt O'Toole wrote: On Thu, 12 Apr 2007 19:04:25 -0400, Peter Hendra wrote: Great idea. I have been in situations where the ships can visually see me but I do not appear on their radar screen - sea state and waves etc. - I have the old metal "forget what it's called" aluminium sphere permanently swinging at my cross trees. The best way to be seen on someone else's radar is to have your own radar turned on. Matt O. Ok, I gotta ask...... how will this help? otn Quite simply, if you are on watch you can glance at the radar when you do your "stand up and slowly scan the horizon 360 degrees with your peripheral vision" The oncoming ship may not see you at all or even be aware of your presence but at least you can take avoiding action. Also, if you have a guard zone set, an audible alarm will warn you of approaching shipping. I do not want to place my life in the hands of someone I do not know and whom I cannot ensure is attending diligently to his instruments and thus I take sole responsibility for not being run down by a larger vessel. I have installed external piezo alarms (a few dollars each) of the loud lazarus variety (awaken the dead) on all of my instruments - GPS for anchor drag, wind for increase above a set level, depth and so on. I am in the process of installing a seatalk one for the Raymarine radar as the unit's internal one is not loud enough. I couldn't do it for my last solo sail as it needs a "box" to attach an alarm to. None of this is intended to allow me to armchair sail. They are merely an attempt to make life easier and longer. At anchor now for years with a 60lb anchor down on 5:1 depth of chain, I can sleep more soundly knowing that should the wind turn or the anchor drag, I will be awakened from the deepest sleep by a strident alarm that can be heard on the other side of the planet. It's amazing how much better one sleeps. Note - I test this alarm very often. When it does go off in the night I don't even have to think. My body leaps out of bed and heads towards the deck, followed by my mind shortly thereafter. Anyone who neglects to add a $7 peizo, available from any electronics shop (make sure they are 12 volt) is avoiding very cheap and very easily installed insurance and peace of mind. cheers Peter You forgot something very important. How about a low-voltage alarm in case your battery goes flat in the middle of the night from all the excess draw from all your electronics and alarms? ;-) I suppose I use different tactics. My Allied Seawind 32 only draws four and a half feet. I use this to my advantage and always try to anchor in shallow water where a ship couldn't run me down if it tried. Wilbur Hubbard |
#20
posted to rec.boats.cruising
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Yacht sunk by Ferry
Larry wrote:
Molesworth wrote in news:ukmole- : http://news.bbc.co.uk/2/hi/uk_news/england/6547267.stm Full AIS transponders.....the sooner, the better for everyone. Bull. The commercial boats don't mind knocking a few of us over. To them, we're sea trash. |
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