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Author Topic: Am I cored or not cored?  (Read 1001 times)

July 27, 2017, 02:19:12 AM
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doyle007

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Am I cored or not cored?
« on: July 27, 2017, 02:19:12 AM »
I am thinking of mounting my new Lowrance Hook 7 transducer in my bilge so that it shoots thru hull, so I want to make sure that I am not a cored hull. My boat is a 1989 Osprey 175. Am I good to go?

Thanks guys.
Joe

July 27, 2017, 07:31:41 AM
Reply #1

Capt. Bob

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Re: Am I cored or not cored?
« Reply #1 on: July 27, 2017, 07:31:41 AM »
I have not seen a cored Hialeah hull.

I'd say no. It's solid fiberglass.
]
Capt. Bob
1991 210 Walkaround
2018 Yamaha 150 4 Stroke
"Reef or Madness IV"

July 27, 2017, 10:44:45 AM
Reply #2

doyle007

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Re: Am I cored or not cored?
« Reply #2 on: July 27, 2017, 10:44:45 AM »
Thank you Bob.  I appreciate the answer, although after reading some additional information I think that I will just stick it on the transom in order to maximize the performance of the transducer.

July 27, 2017, 11:07:15 AM
Reply #3

RickK

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Re: Am I cored or not cored?
« Reply #3 on: July 27, 2017, 11:07:15 AM »
Probably a good idea. Seal it up well.
Rick
1971 "170" with 115 Johnson (It's usable but not 100% finished)

1992 230 Explorer with 250 Yamaha

August 04, 2017, 11:57:57 PM
Reply #4

JimInPB

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Re: Am I cored or not cored?
« Reply #4 on: August 04, 2017, 11:57:57 PM »
I believe that most '80's vintage hulls had a piece of plywood in the hull under the rear deck plate, where the bilge pump is normally mounted.

August 06, 2017, 08:08:34 AM
Reply #5

Capt. Bob

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Re: Am I cored or not cored?
« Reply #5 on: August 06, 2017, 08:08:34 AM »
Every one I've seen has that mount fixed to the hull surface, not cored within the hull itself.

Not sure if that is what you meant. :ScrChin:
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Capt. Bob
1991 210 Walkaround
2018 Yamaha 150 4 Stroke
"Reef or Madness IV"

August 06, 2017, 10:57:11 PM
Reply #6

JimInPB

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Re: Am I cored or not cored?
« Reply #6 on: August 06, 2017, 10:57:11 PM »
Every one I've seen has that mount fixed to the hull surface, not cored within the hull itself.

Not sure if that is what you meant. :ScrChin:

It’s been about 30 years since I worked as a boat rigger at an Aquasport dealer, so my memory of “the fleet at large” is starting to get a bit fuzzy and the features on the Aquasports may be blending in with some of the features on the Makos, Grady’s, Sea Rays & other boats that I also worked on back then.  I remember that some boats had a raised patch in the bilge that was basically a square of plywood that had one or two layers of glass over it.  That patch was usually there so that you had an area that would take a screw, for mounting things like a bilge pump & float switch.  That is probably consistent with what you are describing.  I don’t specifically remember for sure if that was how all the Aquasports were or not. 

The 86 Aquasport that I have now, has flat glass in the bilge, with wood under the area below the pie hatch in front of the motor.  I don’t have a hump in there.  The glass on top of the wood is less than 1/4" thick.  The wood is not in the center of the glass sandwich.  I haven’t noticed any signs that the glass in my current boat was repaired or modified in that area. 

I do remember that a little variation from boat to boat was not an uncommon thing when those boats were new.  Not all details were always the same, even within a single batch of boats that all arrived on the same day in the same truck load.  Perhaps some boats had more of a hump than others???  Perhaps that area of the boat was hand-laid & varied a bit in detail, depending on which Hialeah craftsman was working that particular day???

Please let me know if what you are talking about is different from what I just described.

Thanks,
Jim

May 14, 2018, 10:57:00 AM
Reply #7

CTsalt12

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Re: Am I cored or not cored?
« Reply #7 on: May 14, 2018, 10:57:00 AM »
I am thinking of mounting my new Lowrance Hook 7 transducer in my bilge so that it shoots thru hull, so I want to make sure that I am not a cored hull. My boat is a 1989 Osprey 175. Am I good to go?

Thanks guys.
Joe

I have the same exact boat.  Hull is not cored, but yes there is a wood area for bilge pump right along the keel in stern. 

I stuck some starboard to my transom with 4200 and I use that as a transducer mounting plate so I can adjust the location and not worry about the amount of holes I'm drilling.  I change it somewhat often, still haven't found the right spot for a Side Imaging ducer on the 175 where it gets a reading on both sides or gets a good reading at high speed, or doesn't create a rooster tail.   :acclaim01:
 

Food for thought. 
Jimbo
1989 175 Osprey

 

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