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Old 11 March 2013, 04:09   #61
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I recall an 'experienced' skipper who was working for me as a mate on a reasonable sized boat chose to use his iphone AIS app instead of the ship's certified Class A AIS system.

I only found out about this when the stewardess brought it to my attention he disbelieved the ship's equipment and stated that it was wrong and there wasn't a large tanker where the AIS showed... until she pointed out the XXX,000 tons of metal right where the official AIS showed it in front of us.

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Old 11 March 2013, 05:33   #62
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Exactly and at 15 knots we could stop well within the available visibility.
In that case 15 knots was the right speed. Sounds reasonable to me.
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Old 11 March 2013, 05:43   #63
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Exactly and at 15 knots we could stop well within the available visibility.
That is the important part, being able to react and stop within the available visibility.

Teignmouth is reasonably well marked, and depending on the state of the tide, you could try to pick up the port hand red marks near the bank, and steer a compass course between them, but if the tide is low, it is much trickier.

Once into the river, past the Green stb'd spar mark, it is relatively easy to follow the line of boats/bouys on the stb'd side of the channel, then just off the commercial docks to poly steps, (where I guess you were?)

The use of the echo sounder is very helpfull.

If course it is made easier with electronics, and a backup, but all of these backups have a common system, GPS, which is not infallible.

Having a small chart means you have the information about the bouys, the channel, and you can plan an alternate using it.

Good job getting back though

You made it, and safely so that is the main point

And it gives food for thought on equipment, and what to carry
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Old 11 March 2013, 05:53   #64
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One thing also about slowing down is that its much quieter. Being able to hear whats going on around you without the roar of an outboard engine drowning everything out is quite important.
Even in a wheelhouse, open a door or window so that your not totally soundproofed.

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Old 11 March 2013, 06:41   #65
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One thing also about slowing down is that its much quieter. Being able to hear whats going on around you without the roar of an outboard engine drowning everything out is quite important.
Even in a wheelhouse, open a door or window so that your not totally soundproofed.

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Old 11 March 2013, 06:48   #66
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The downside with new electronics/ plotters is that i believe some boaters use it as it would be a radar, they proceed in fog at speeds they would never had done with paper charts.....

I always carry old fashion paper charts in the boat but must admit it is so much more convenient to use the plotter.
Agreed....like Condor Ferries skippers, for instance?
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Old 11 March 2013, 09:18   #67
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On our Round Britain Charity Challenge last June we got caught in very thick fog near the Farne Islands - I had plotted a course to go inside the islands and our Raymarine navigation system worked brilliantly - we were limited to around 5 mph for most of the time and we saw lots of fishing boats come and go through the fog, very scary but with a good lookout and everyone alert we were never in danger.
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Old 11 March 2013, 09:31   #68
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In my experience fog usually = quite calm. It was a storm that did for Cloudesley Shovell.
That and the fact that due to poor navigation and not being able to tell his longitude (all easy peasy with a GPS) he mistook the Iles of Scilly for the Isle of Wight.
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Old 11 March 2013, 09:39   #69
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Drunkeness (a very common problem)
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... he mistook the Iles of Scilly for the Isle of Wight.
That's what I said. To much Port!
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Old 11 March 2013, 14:58   #70
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To answer Poly's Q, yeah, radar would've been a huge help. I hadn't really considered how useless GPS was without radar in such a situation prior to being plonked in said situation.
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