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#1
posted to rec.boats.cruising
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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. |
#2
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 |
#3
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 |
#4
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 |
#5
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 |
#6
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 |
#7
posted to rec.boats.cruising
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Yacht sunk by Ferry
On Sat, 14 Apr 2007 11:54:19 -0400, "Wilbur Hubbard"
wrote: 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 Good point Wilbur, I have one that has a different sound to all the others. It can be set to any voltage level. As to shallow draft, mine is also 4' 6" even though it is 49 ft in length. However, it is not at anchor that I worry about being run down by a ship. It is out on the ocean blue. Incidently, shallow draft is great, isn't it. I had the option of building with a draft of either 4' 6" or 6 foot. Around New Zealand, 6 ft would be fine but in parts of Australia, especially the navigable rivers and the parts of Asia that I wanted to travel, a shallower draft has advantages. What we enjoy is arriving at a crowded anchorage where the close in spots have been taken and nipping behind those and dropping anchor closer to the beach. cheers Peter |
#8
posted to rec.boats.cruising
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Yacht sunk by Ferry
On Sun, 15 Apr 2007 18:54:06 -0400, Peter Hendra
wrote: Sorry - typo - My boat is 40 foot in length, not 49 Peter Good point Wilbur, I have one that has a different sound to all the others. It can be set to any voltage level. As to shallow draft, mine is also 4' 6" even though it is 49 ft in length. However, it is not at anchor that I worry about being run down by a ship. It is out on the ocean blue. Incidently, shallow draft is great, isn't it. I had the option of building with a draft of either 4' 6" or 6 foot. Around New Zealand, 6 ft would be fine but in parts of Australia, especially the navigable rivers and the parts of Asia that I wanted to travel, a shallower draft has advantages. What we enjoy is arriving at a crowded anchorage where the close in spots have been taken and nipping behind those and dropping anchor closer to the beach. cheers Peter |
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