Terschelling's towfish

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Terschelling's towfish

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Some figures:
Lenght 1.50m
Tail fin in X configuration , made out of 2mm stainless steel plate 14 x 45 cm

Pipe 32mm diam. wallthickness 1mm, transducer simply connected with bolt & nut.
2 divebelt weights of 2kg at the front.
towing point: shackle which is connected tothe pipe by stainless steel hose clips, same used for connecting weights and for securing of fins.

total weight 8.5 kg , easy to handle with 4mm polyester wire and without gloves.

Objective: a tow fish capable to be used with relative high boatspeeds to make "quick" scans of large area's. For this I need a fish with some weight / less drag or a depressor wing.
A "big" wreck will be noticed, afterwards these positions will be run with reduced speed and range to get detailed images.

Before modification she was equiped with plastic fins (to weak > deformation and un-balance and much less weight > towing point more to the forward as on previous picture)
Now the towing point is almost in centre (1 a 2 cm before centre of weight), the fins will take care for a stable course.

Regards,

Frank

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Terschelling

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Total Comments: 0

Posted	March 10, 2011, 05:50:24 PM
Width × Height	1200 × 900
Filesize	255 KB
Filename	IMG_7852.JPG
Views	1193
Downloads	1
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Comments	1
Last Edited	March 10, 2011, 06:04:09 PM
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Rickard

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Comment #1 - Posted March 11, 2011, 04:02:07 PM