Cruisers Forum
 


Join CruisersForum Today

Reply
 
Thread Tools Rate Thread Display Modes
Old 28-05-2013, 11:10   #1
Registered User

Join Date: Sep 2010
Posts: 127
How to locate sunken mast in marina? sonar?

What im trying to do really shouldnt be that difficult. Google has been zero help. There has to be some cheap sonar device that i can buy to help me find my sunken mast. The marina is not super big but big enough that i think some type of electrical equipment will be needed as it is unclear where exactly the boat was dismasted in the marina. where only talking about 9ft of water here! Its a 45ft mast how hard can it be to find in a marina!! Here in ohio there dont seem to be many/any salvage/scuba/ recovery companies and i would rather buy sonar, fishfinder? ect than pay them to do it.
__________________

__________________
albergsailor is offline   Reply With Quote
Old 28-05-2013, 11:14   #2
Registered User

Join Date: Jan 2012
Posts: 1,172
Images: 15
Re: How to locate sunken mast in marina? sonar?

get a grapnel and drag?
__________________

__________________
tamicatana is offline   Reply With Quote
Old 28-05-2013, 11:16   #3
Long Range Cruiser
 
MarkJ's Avatar

Cruisers Forum Supporter

Join Date: Dec 2007
Location: Australian living on "Sea Life" currently in England.
Boat: Beneteau 393 "Sea Life"
Posts: 12,828
Images: 25
Re: How to locate sunken mast in marina? sonar?

Put on cement shoes and wald along the bottom till you stub your toe.


Have you got a scuba ticket?
__________________
Notes on a Circumnavigation.
OurLifeAtSea.com

Somalia Pirates and our Convoy
MarkJ is offline   Reply With Quote
Old 28-05-2013, 11:18   #4
Registered User

Join Date: Sep 2010
Posts: 127
Re: How to locate sunken mast in marina? sonar?

i was thinking about something like that, something kinda like an anchor but i figured an anchor would get stuck. So the word for that is a grapnal. Ok im gonna try and find a grapnal haha! I wonder if west marine sells that. Just checked and they do its a grapnal anchor? Still wish i cud get some kinda electrical device to make the job easier...
__________________
albergsailor is offline   Reply With Quote
Old 28-05-2013, 11:19   #5
Registered User
 
LakeSuperior's Avatar

Join Date: Jan 2008
Boat: Teak Yawl, 37'
Posts: 1,581
Images: 7
Re: How to locate sunken mast in marina? sonar?

A mast if laying right on the bottom will only stand 4 to 6 inches proud if the bottom is firm. Hard to spot with sonar.

I would start by dragging a grappling hook in a gridded search pattern you can cover a lot of ground in the short time with two people in a dingy.

Hold the line by hand and you can feel the bottom and you will feel the mast even if you don't hook it. This will take some patience but a 45 foot mast should be easily found.
__________________
LakeSuperior is online now   Reply With Quote
Old 28-05-2013, 11:20   #6
Registered User

Join Date: Jun 2009
Location: still in a roll of fiberglass around Cape Town
Boat: Leopard 40 (new model)
Posts: 1,201
Re: How to locate sunken mast in marina? sonar?

Quote:
Originally Posted by albergsailor View Post
What im trying to do really shouldnt be that difficult. Google has been zero help. There has to be some cheap sonar device that i can buy to help me find my sunken mast. The marina is not super big but big enough that i think some type of electrical equipment will be needed as it is unclear where exactly the boat was dismasted in the marina. where only talking about 9ft of water here! Its a 45ft mast how hard can it be to find in a marina!! Here in ohio there dont seem to be many/any salvage/scuba/ recovery companies and i would rather buy sonar, fishfinder? ect than pay them to do it.
Many years ago a friend and I managed to sink a Snipe dinghy in 20ft of lake water and we managed to locate it by dragging 40ft by 1/4in steel bars (as used for concrete) with a 135-degree hook in the bottom end. We went back and forth in a pattern (easier to do now with GPS) until we hooked one of the shrouds. You may want to try the same..

Cheers
C
__________________
svlamorocha is offline   Reply With Quote
Old 28-05-2013, 11:22   #7
CF Adviser
 
Bash's Avatar

Cruisers Forum Supporter

Join Date: Dec 2008
Location: sausalito
Boat: 14 meter sloop
Posts: 7,260
Re: How to locate sunken mast in marina? sonar?

sonar won't do it. You'd either need a magnetometer or UW metal detector, assuming the mast is metal.

Hard to believe there isn't a scuba shop somewhere there in Ohio where you could find a salvage diver willing to make a quick $100. Would certainly be cheaper than purchasing a towable magnetometer.

Curiosity has the best of me as to how someone can be dismasted in a marina but not know where the mast went down. Is there a story here?
__________________
cruising is entirely about showing up--in boat shoes.
Bash is offline   Reply With Quote
Old 28-05-2013, 11:24   #8
Registered User
 
Teknav's Avatar

Join Date: Jul 2012
Location: Texas - USA
Boat: Twin Otter de Havilland Floatplane
Posts: 1,838
Re: How to locate sunken mast in marina? sonar?

...mast got tired of standing up and it jumped ship... Mauritz
__________________
Teknav is offline   Reply With Quote
Old 28-05-2013, 11:29   #9
Senior Cruiser
 
roverhi's Avatar

Cruisers Forum Supporter

Join Date: Aug 2005
Location: Kona, Hawaii, Carlsbad, CA
Boat: 1969 Pearson 35 #108 & 1976 Sabre 28
Posts: 6,003
Send a message via Yahoo to roverhi
Re: How to locate sunken mast in marina? sonar?

Just can't resist. How did you manage to lose the stick in the harbor??
__________________
Peter O.
'Ae'a Pearson 35
roverhi is online now   Reply With Quote
Old 28-05-2013, 11:32   #10
Registered User

Join Date: Sep 2010
Posts: 127
Re: How to locate sunken mast in marina? sonar?

The story is sandy. I was there the night of the storm taking care of my previous boat which survived without nearly a scratch.. I now own this dismasted boat a bayfield 32. It had broke free from its lines and the boat had apparently rubbed up against a cable long enough to shear the mast off about 4 ft up from the deck as if someone cut it with a sawzaw!! crazy i know. Nobody saw where she was dismasted. This marina in cleveland had somewhere around 30 plus boats sink that night. The marina is not open this year. There is not a TRACE of the marina left as it has all been removed to be rebuilt which should make the dragnet even easier.
__________________
albergsailor is offline   Reply With Quote
Old 28-05-2013, 11:39   #11
Registered User
 
ranger42c's Avatar

Join Date: Aug 2012
Location: Maryland, USA
Boat: 42' Sportfish
Posts: 2,981
Re: How to locate sunken mast in marina? sonar?

Metal detector? There are volunteer groups around, with members who enjoy searching for stuff...

-Chris
__________________
Selby Bay, South River, Chesapeake Bay, USA.
ranger42c is offline   Reply With Quote
Old 28-05-2013, 11:41   #12
Registered User
 
kthoennes's Avatar

Join Date: Sep 2011
Location: Sioux Falls, SD
Boat: Carver 3207 Aft Cabin, 32'
Posts: 289
Okay so now I have to ask: why are you looking for a big piece of a mast broken clean off? Are you thinking of re-using the pieces somehow?
__________________
kthoennes is offline   Reply With Quote
Old 28-05-2013, 12:28   #13
Registered User

Join Date: Sep 2010
Posts: 127
Re: How to locate sunken mast in marina? sonar?

lost internet for a minute there.. well for one its got all the rigging on it. And yea i was thinking of possibly having an extrusion made for it to fit inside the 2 broken pieces. I mean isnt that how they fix the mast?. At first i totally dismissed that idea and will most likely be getting a mast, ect from another boat i already got the stuff lined up for pretty cheap.
__________________
albergsailor is offline   Reply With Quote
Old 28-05-2013, 12:35   #14
Registered User
 
Dennis.G's Avatar

Join Date: May 2011
Location: Sea of Cortez and the U.P. of Michigan
Boat: Celestial 48
Posts: 750
Re: How to locate sunken mast in marina? sonar?

In just 9 foot of water could likely locate just using:
Bathyscopes – Underwater Viewing Fun | Ocean Fare

Of course you would still need to dive in and tie a rope to it. In 9' should be able to just hold breath and swim on down to it. Hardest part likely hauling it up from bottom and getting it to shore.
__________________
Dennis.G is offline   Reply With Quote
Old 28-05-2013, 13:06   #15
Registered User

Join Date: Apr 2013
Posts: 4,867
Re: How to locate sunken mast in marina? sonar?

If they cleared everything out to rebuild the marina...are you sure they didn't already pull the mast at the same time and cart it off?
__________________

__________________
valhalla360 is offline   Reply With Quote
Reply

Tags
mast

Thread Tools
Display Modes Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off




Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -7. The time now is 11:07.


Google+
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Social Knowledge Networks
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.

ShowCase vBulletin Plugins by Drive Thru Online, Inc.