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Old 12 May 2010, 16:27   #11
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I am at an advantage as I have dived all of the marks scanned at the weekend. This was deliberate as I wanted to check what I knew to be on the seabed with what the scans showed.
The next flat calm day I am off to look for new wrecks
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Old 13 May 2010, 06:17   #12
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Bruce - these are really impressive. Do you need to drive the boat back and forth to build up the image or do you stay still and the device does the magic? How long does it take to create an image? As I don't dive I won't ever be able to justify this for myself - but its amazing how much you can pick out. If you know what you are looking for can you spot these wrecks with an ordinary fishfinder?
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Old 13 May 2010, 07:00   #13
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Here are our ones from a current project: http://www.corribcharts.com/sidescan_images.html
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Old 13 May 2010, 13:28   #14
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I think the pipe is fantastic, any more?

Polwart, you just troll along in a straight line around 4-6knots and the pictures comes up as the boat passes the seabed. All the shots shown are screenshots of the actual view as the boat goes along.

The Thalia I found by using an ordinary sounder and running up and down for three months till I literally ran right over the top of it. With this kit I could have found it in a few hours.
If you know where the are you can pick them up on a sounder without any problem.
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Old 14 May 2010, 03:08   #15
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Sidescan images

Are the results very sea state dependent? Can the system cope with a bit of a swell?

Cheers
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Old 23 May 2010, 17:01   #16
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Because it is hull mounted and the boat isn't so big the sea state is fairly important.
I have been out trawling around about three times in the last fortnight and think I have found another Catalina. I would have dived it to confirm today but the wind got up as we were coming back from a picnic on a beach in the sun on Morvern . it is now so foggy the foghorns are going on Lismore and that is pretty rare
This one is slightly deeper and aircraft, because of the small size and condition of them, don't show up very well below about 20m or so.
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Old 24 May 2010, 06:41   #17
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Bruce,

You are fast becoming a repository of wrecks, you could sell this info! and not give it away for free - Side Scan Position pimp?
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Old 24 May 2010, 13:32   #18
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can you flag up the specs on the kit you were using, the pictures are great, i would love to see about a simular set up
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Old 25 May 2010, 06:27   #19
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Sea Conditions

Hi Bruce,

What sort of sea state have you been able to work up to and still get useable results?

Cheers
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Old 28 May 2010, 09:17   #20
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A little contribution... its an awesome little machine:-)

Could have gone a little faster over it.

Henrik
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