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#1
posted to rec.boats.cruising
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Yacht sunk by Ferry
http://news.bbc.co.uk/2/hi/uk_news/england/6547267.stm
Watch Officer to be charged with manslaughter. Molesworth |
#3
posted to rec.boats.cruising
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Yacht sunk by Ferry
On Thu, 12 Apr 2007 17:19:35 +0000, 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. If you can afford a yacht, you can afford a small AIS transponder. Noone HAS to die. Ouzo would have had the same size target on the AIS screen in that ferry as a big aircraft carrier. No need, any more, to rely on some plastic reflective ball to make you a tiny blip on someone's 1957 tube radar screen, fading in and out as the mast lays over. EVERY yacht going to sea in this traffic needs a full AIS transponder running 24/7. There's too much big traffic, today, to go on without it. Larry Larry, 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. Any idea what they cost and is there a fee involved or do you the American tax payer foot the bill as you so generously do for GPS? cheers Peter Hendra |
#4
posted to rec.boats.cruising
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Yacht sunk by Ferry
AIS is not a "silver bullet". Although many ships are transitioning to
"ECDIS" wherein they will end up having a screen with a chart/radar/AIS overlay, it is not all that common yet. In most cases you are still dealing with a seperate AIS screen which only list the targets and is only usefull if you have some reason to look at it..... so .....if they haven't seen the target visually and/or on radar, they may not check the AIS to see what's about/around. Prudence would say visual..... check the radar for targets with and without AIS, check the AIS for targets missed on radar.... and back to visual....i.e., with each new system you improve your lookout capabilities.....but only if you use them. otn |
#5
posted to rec.boats.cruising
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Yacht sunk by Ferry
* otnmbrd wrote, On 4/12/2007 7:26 PM:
AIS is not a "silver bullet". Although many ships are transitioning to "ECDIS" wherein they will end up having a screen with a chart/radar/AIS overlay, it is not all that common yet. In most cases you are still dealing with a seperate AIS screen which only list the targets and is only usefull if you have some reason to look at it..... so .....if they haven't seen the target visually and/or on radar, they may not check the AIS to see what's about/around. Prudence would say visual..... check the radar for targets with and without AIS, check the AIS for targets missed on radar.... and back to visual....i.e., with each new system you improve your lookout capabilities.....but only if you use them. But AIS adds an extra dimension - A smaller vessel that feels at risk of not being noticed can now hail a large vessel by name and ask if they are being tracked. That would make a huge difference when crossing busy lanes. |
#6
posted to rec.boats.cruising
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Yacht sunk by Ferry
"Jeff" wrote in message
. .. * otnmbrd wrote, On 4/12/2007 7:26 PM: AIS is not a "silver bullet". Although many ships are transitioning to "ECDIS" wherein they will end up having a screen with a chart/radar/AIS overlay, it is not all that common yet. In most cases you are still dealing with a seperate AIS screen which only list the targets and is only usefull if you have some reason to look at it..... so .....if they haven't seen the target visually and/or on radar, they may not check the AIS to see what's about/around. Prudence would say visual..... check the radar for targets with and without AIS, check the AIS for targets missed on radar.... and back to visual....i.e., with each new system you improve your lookout capabilities.....but only if you use them. But AIS adds an extra dimension - A smaller vessel that feels at risk of not being noticed can now hail a large vessel by name and ask if they are being tracked. That would make a huge difference when crossing busy lanes. I think it's definitely a net positive, except for the cost. I suppose it'll come down at some point. -- "j" ganz @@ www.sailnow.com |
#7
posted to rec.boats.cruising
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Yacht sunk by Ferry
"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 "Jeff" wrote in message . .. * otnmbrd wrote, On 4/12/2007 7:26 PM: AIS is not a "silver bullet". Although many ships are transitioning to "ECDIS" wherein they will end up having a screen with a chart/radar/AIS overlay, it is not all that common yet. In most cases you are still dealing with a seperate AIS screen which only list the targets and is only usefull if you have some reason to look at it..... so .....if they haven't seen the target visually and/or on radar, they may not check the AIS to see what's about/around. Prudence would say visual..... check the radar for targets with and without AIS, check the AIS for targets missed on radar.... and back to visual....i.e., with each new system you improve your lookout capabilities.....but only if you use them. But AIS adds an extra dimension - A smaller vessel that feels at risk of not being noticed can now hail a large vessel by name and ask if they are being tracked. That would make a huge difference when crossing busy lanes. I think it's definitely a net positive, except for the cost. I suppose it'll come down at some point. |
#8
posted to rec.boats.cruising
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Yacht sunk by Ferry
Peter Hendra wrote in
: Any idea what they cost and is there a fee involved or do you the American tax payer foot the bill as you so generously do for GPS? http://www.sailwx.info/aisinformation.html http://www.panbo.com/yae/archives/001174.html Panbo says they're coming out with one from UK for under $US500 for pleasure boats. If the manufacturers knew AIS transponders were going to be REQUIRED on every yacht, not just a few where they may lose their shirts, the competition would drop prices like a rock. The ship owners want to keep small boats from having AIS, probably because the victims of the crashes don't survive to SUE THEIR ASSES.... http://www.dolphinmaritime.com/hardware/csb200.html HACSB200 Class B transponder - 525 British pounds. Only puts out 1-4 watts, not 12.5w. 4W will give it plenty of range to a ship's tall antenna, but may cause crashing with other 12W stations who cannot hear it that are in range. That would make the packets crash as it wouldn't have a timeslot reserved on ALL the radios to the horizon....not good. http://www.euronav.co.uk/PriceList/L...istLeisure.htm Euronav has the same CSB200 transponder for EU425 w/o VAT. It pays to shop the internet....(c; http://www.sevenstarelectronics.com/ Sevenstar thinks theirs, "USCG approved" whatever that means, is worth $1000. It looks like it was made in someone's garage. http://www.diytrade.com/directory/gl...ts/414991.html The Communists have a full 12W Class A for $2000 with all the capabilities of a ship AIS....overkill for a sailboat. It will do AIS messaging, too. Larry -- |
#9
posted to rec.boats.cruising
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Yacht sunk by Ferry
Jeff wrote in
: But AIS adds an extra dimension - A smaller vessel that feels at risk of not being noticed can now hail a large vessel by name and ask if they are being tracked. That would make a huge difference when crossing busy lanes. Class A AIS transponders and software also ALARM to wake up the watch to the crossing/collision situation. He doesn't have to be staring at the screen all night to notice you....LIKE RADAR. Larry -- |
#10
posted to rec.boats.cruising
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Yacht sunk by Ferry
On Apr 12, 9:19 pm, Larry wrote:
Jeff wrote m: But AIS adds an extra dimension - A smaller vessel that feels at risk of not being noticed can now hail a large vessel by name and ask if they are being tracked. That would make a huge difference when crossing busy lanes. Class A AIS transponders and software also ALARM to wake up the watch to the crossing/collision situation. He doesn't have to be staring at the screen all night to notice you....LIKE RADAR. Larry -- A good radar has a range alarm as well Larry. The whole point otmbrd is making is that all are just tools for you and your lookouts. Now if a ship load of retards are sleeping, not maintaining a proper lookout, not applying the tools properly.... then none of it matters. Nadda...zip it's just high dollar usless ****. Thats all we need......another law to sell products that you do not really need IMO. Joe |
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