[Public-list] hull thickness/transducers

[Don Campbell]

George:
     I used a through hull there and faired the edges of the through 
hull to the hull with epoxy to make a smooth transition for water flow 
on the hull. I do not have a box for a bath. The hull was fairly 
consistent there and it was more than 1/2" thick where I cut through, 
but that may have been exacerbated by the angle. I do know that #528 has 
a thin hull at the point where the prop shaft exits though. Sorry, I 
looked for a picture and can't find one. The boat is in the water now 
and I don't think I can get the bow high enough to get one until the 
fall and liftout, even with all the racers on the stern during this 
coming weekend! 
Don.

George Dinwiddie wrote:
> The Rochets wrote:
>   
>> I am intrigued by Don's setup--a transducer aiming forward at  
>> a low angle is definitely a good idea; it's nice to know how much  
>> water there is AHEAD of the boat. I am just not sure how much room  
>> there is under my V-berth, aft of the water tank, but I am definitely  
>> going to check it out. I am wondering whether your oil bath attempt  
>> did not work because the hull is thicker at that location, Don. From  
>> the hull plans, it looks like that would be right on top of the  
>> beginning of the keel, and quite a bit thicker.
>>     
>
> The hull is less consistent there, also.  It was molded in two halves 
> which were joined.
>
>   - George
>
>   

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