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Old 06-07-2018, 17:07   #61
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Re: Sleeping during long passage.

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Originally Posted by Brady 50 View Post
Sorry I need to add the vessel Brady 50 is a motor sailer we do NOT use sails at night.
Have ALL the latest electronics on board for alarms etc.

Thanks for yr replies it's a real problem for me to drive/sail without info single handed.


No radar will pick up a stump or container, no AIS will pick up a fishing boat that doesn't have a transponder, etc. You're taking a risk and that's all there is to it. On a sailboat you have max 20 minutes to alter course if a ship is coming at you over the horizon. On a power vessel, less.
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Old 06-07-2018, 17:10   #62
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Re: Sleeping during long passage.

Sorry Ann
I assumed you were sailing. Motor yacht different story.
Suggest finding s friend to go with as should have person on watch at pretty much all time would be my suggestion.
Cheers
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Old 06-07-2018, 17:13   #63
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Re: Sleeping during long passage.

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Originally Posted by Cyrus Safdari View Post
No radar will pick up a stump or container,
And no eyes, in reality, will pick up a stump or container either.

Quote:
. no AIS will pick up a fishing boat that doesn't have a transponder, etc.
But a radar will

Quote:
.You're taking a risk and that's all there is to it.
You take a risk every day
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Old 06-07-2018, 17:14   #64
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Re: Sleeping during long passage.

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And no eyes, in reality, will pick up a trump or container either.
You can see stumps in the water float by in daylight, at least far better than if you were below counting sheep
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Old 06-07-2018, 17:20   #65
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Re: Sleeping during long passage.

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You can see stumps in the water float by in daylight, at least far better than if you were below counting sheep
And at night?
He's talking about doing a passage, not day sailing.
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Old 06-07-2018, 17:41   #66
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pirate Re: Sleeping during long passage.

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And at night?
He's talking about doing a passage, not day sailing.
That's what makes me smile when folk say they stay up all night and sleep during the day..
Stay awake dawn till dusk then at least 2/3rds of the day has an active visual watch.. then sleep when dark and you cannot see anything.
But hey.. wot do I know..
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Old 06-07-2018, 19:57   #67
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Re: Sleeping during long passage.

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Hi Grumps.
I’ve done many deliveries. Rarely paid for food. Never paid for diesel. Always paid for my own grog.
Usually pay my own airfares.
Pete
That maybe so my man but I am NOT doing deliveries, I'M CRUISING.
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Old 06-07-2018, 20:00   #68
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Re: Sleeping during long passage.

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What the last 3 have said ^^^^^

You pay peanuts ( or less ) you get monkeys....

Pay for your own diesel...

Feed your crew...

Buy em a ticket home.....

You will, at the very least, get a better class of monkey.....
U DIDN'T READ MY POST. I'm NOT looking for a crew. Im looking for a "Boad Buddy" older person, maybe retired, loves a boat & has the experience, but sadly cant afford to but their own.
I trust has now made it clear.
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Old 06-07-2018, 20:04   #69
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Re: Sleeping during long passage.

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Hi, did you buy catriona?
G'day Simi.
Where are U in OZ?
I'm now at Hervey Bay at marina.
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Old 06-07-2018, 20:06   #70
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Re: Sleeping during long passage.

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Originally Posted by Dr. Sea View Post
This may be your problem, trying to find good crew for free. Feed your crew and buy your own diesel. Taking considerable risk and subjecting yourself to physical punishment is not your only choice.
And How long have been going to sea?
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Old 06-07-2018, 21:56   #71
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Re: Sleeping during long passage.

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G'day Simi.
Where are U in OZ?
I'm now at Hervey Bay at marina.
Moreton bay area.
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Old 06-07-2018, 22:39   #72
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Re: Sleeping during long passage.

Note. Marine traffic from AIS, gives a totally false impression of traffic density in the open ocean. It depends on shore based receivers. AIS has limited range.
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Old 06-07-2018, 22:55   #73
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Re: Sleeping during long passage.

We have class B AIS it uses WiFi AND SAT
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Old 06-07-2018, 22:56   #74
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Re: Sleeping during long passage.

???????
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Old 06-07-2018, 23:06   #75
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Re: Sleeping during long passage.

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Originally Posted by KJThomas View Post
Note. Marine traffic from AIS, gives a totally false impression of traffic density in the open ocean. It depends on shore based receivers. AIS has limited range.
The Low Earth Orbit satellites that handle the AIS signals from large commercial vessels, fishing vessels, and pleasure vessels are 600 - 700 kilometres high above the earth's surface.

Sure, you're right 1. limited range, about 700 km vertically up, is needed; and 2. those satellites then download their data to earth stations. Without those earth stations, we'd not have the data.

Marinetraffic.com is just one of many aggregators of AIS data. What you see for free is just a subset of the data available. If you happen to be temporarily impecunious and are just browsing what marinetraffic.com offers for free, you'll likely note that vessels shown well outside of VHF signal range have a wee 'position received by satellite' note attached to their location icon.

The aggregators of AIS data make their profit selling their realtime and accumulated data. For example, US$750 or so will get you a monthly density map of most anywhere on the planet and in the resolution you desire. See for example: https://www.exactearth.com/products/...s#online-store

In coastal waters, particularly along the coasts of developed economies, shore stations aggregate the signals of vessels that only broadcast AIS by VHF.

The commercial aggregators, such as marinetraffic.com, exactAIS, fleetmon, and so on are happy to add the coastal AIS data to theirs for completeness, so to speak.
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