Humminbird Side Imaging Forums
Other Interest => DIY - Side Scan Sonar and towfish => Topic started by: abraquelebout on January 22, 2011, 06:10:56 AM
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just for fun scan images at 455 khz
455 khz must make detail picture
anchor of wreek
[attachment=1]
[attachment=2]
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then, propeller (4 m )
in 1 the Propeller shaft 0,40 cm and landings in 2
[attachment=1]
imagine with 2 part of transducer :D
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Nice images Abra.
And there is of course some questions.
Is the images taken by a towfish?
Have you been able to dive on the targets?
It looks like the wreck is on the right side from the anchor, or is it something else?
If you have identified the wreck and the aircraft, I, and I guess all the others would be interested in knowing what it is.
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yes i use towfish
this wreek is vapor, i dive on it
it mesure 72 m lenght, i take this sequence in my first towfish utilisation
i'm waiting, in a few month i must go on salt water to do new scan on wreek near home
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Beautiful pictures Abra!
Do you have the name of the wreck? 72 m is a big ship from my point of view. The longest (known) wreck in Lake Constance is the "Jura" with 46 meters.
http://forums.sideimagingsoft.com/index.php?action=media;sa=media;in=101;preview (http://forums.sideimagingsoft.com/index.php?action=media;sa=media;in=101;preview)
Regards / Harry
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in my country it's a midle wreck
whe have got lot of 100 or 140 m wreck
a navigation road past at few miles, during the two war, german submarine make lot of wreck
one day 5 ship sunk.
whe have got 2 uboat sunk, one of them is at 26 m depht, and whe want to find another one...a job for side scan sonar.
now this year i want to find a 4 mast who sunk in 1 dec 1924 , it make 98 m lenght
it's iron 4 mast, during a worm it goes on rocks, in one night all the ship Disappeared
i read shipwrecked report, some speack about 10 or 15 meter waves...
now i'm making search planification and gird in 2 month, when the sea whant , whe go
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Sir; Ypu might try a MAGNETOMETER, with the sidescan. Roddy
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hi every body
i'm on my new home and my computer is connect again !!!!
magnetometer is interresting but in this search there's lot of wreek and a mag take interference at a long distance wreek point
for this ship and this location a sonar may be a good solution.
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Abra; Real nice pix.Sir what type cable are you using? thanks Roddy
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hi roddy
i use a cable who serve in aerospatial project or transmit data on precision machine tool
in begining i have 85 m cable and good result, one of my friend said me cutting at 60 m because it take lot of place on boat
if i know i would not do that
now i use a drum of electric cable and there's no problem
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Abra; Thanks for the reply. I am building a system 500 feet CAT6A cable, AMP/FILTER,CCTV,IR LIGHTS.
I have found slip rings on the internet for less then $30.00 US. So I will built a split ring reel to handle cable. Enjoy Roddy
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hi roddy
like we informed when it will be made...
now i search large sunken boat in sea, i make scan also for archeologist on river.
with my towfish, i can see a 1,50 m made in 10 cm wooden structure in 800 khz or 20 cm stone .
i'm waiting better sea condition to go on more depht and make scan of wreck near coast
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Abra; Your pix are super! I have set up one tow fish, and now I plan to set up a unit for 500 feet. Around Charleston SC. USA. the water is less than 70 feet to about 40 miles offshore then drops off to 3000+ Feet. I hope to scan some deep water wks. Hope you get out soon. Good Luck Roddy :)