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post #1 of 12 Old 01-23-2009 Thread Starter
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Question Whatisit?

I am going to call this a whatisit?

Much different than a whatchamacallit!

It looks to be a through the hull depth, speed, temp something?

Has 2 wires; red and black.

Just curious if someone knows. Looks like it makes a big hole in the bottom of boat, so, I not want to touch it until the boat is out of the water.
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All the rivers run into the sea, yet the sea is not full.
Ecclesiastes, 1:7
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post #2 of 12 Old 01-23-2009
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Mostly just scarylookin'........

Ron

1984 Fast/Nicholson 345 "FastForward"

".. there is much you could do at sea with common sense.. and very little you could do without it.."
Capt G E Ericson (from "The Cruel Sea" by Nicholas Monsarrat)
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post #3 of 12 Old 01-23-2009
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Probably a knotmeter since depth sounders usually are not removable.
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post #4 of 12 Old 01-23-2009
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I'd call that a hole waiting to happen.

Are we there yet?
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post #5 of 12 Old 01-23-2009
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Looks exactly like my original knot meter transducer.

That was on my previously owned boat - a 1973 C&C Shark 24.
Here's a link to the same part. Made by Moore Electronics.
http://www.moorelectronics.com/partsinfo/88-020-104.jpg
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post #6 of 12 Old 01-23-2009
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Hey.. another present/former Shark owner! A special welcome to you. Lots of us here.

David

David

1987 CS 36 Merlin "Kyrie"

"They drove a dump truck full of money up to my house. I'm not made of stone!" -Krusty the Clown
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post #7 of 12 Old 01-23-2009 Thread Starter
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Talking 1973

Quote:
Originally Posted by jimq26 View Post
That was on my previously owned boat - a 1973 C&C Shark 24.
Here's a link to the same part. Made by Moore Electronics.
http://www.moorelectronics.com/partsinfo/88-020-104.jpg
Yep, this is in a 1973 Santana 21' back when they made big bulky stuff that requires big holes!

So, I guess it actually does go through the hull and not shoot through the hull?

Dang, I hate drilling holes in a boat, especially when it is below the waterline.

Thanks

All the rivers run into the sea, yet the sea is not full.
Ecclesiastes, 1:7
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post #8 of 12 Old 01-23-2009
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Quote:
Originally Posted by Gryzio View Post
Yep, this is in a 1973 Santana 21' back when they made big bulky stuff that requires big holes!

So, I guess it actually does go through the hull and not shoot through the hull?

Dang, I hate drilling holes in a boat, especially when it is below the waterline.

Thanks
There are few if any knotmeters that do not require a thru-hull fitting.. some sounders can be set up to shoot through the hull (at some cost in range)

Theoretically a Doppler-shift style ultrasonic knotmeter sensing through the hull is possible... and I think some were marketed at one point but AFAIK never really caught on. I suspect the hull thickness near the bottom of the hull is a bit too much in most cases and cored hulls would be worse.

Ron

1984 Fast/Nicholson 345 "FastForward"

".. there is much you could do at sea with common sense.. and very little you could do without it.."
Capt G E Ericson (from "The Cruel Sea" by Nicholas Monsarrat)
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post #9 of 12 Old 01-23-2009
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Eek

Looks like part of a pipe bomb
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post #10 of 12 Old 01-23-2009
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Definitely a knot meter transducer...I have one still in use on my Ranger 23. But mine doesn't look so bad...

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Corey

Lake Pontchartrain and beyond (hopefully)
1978 Ranger 23
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