[C320-list] Crack Between Hull and Keel

[Allan S Field]

Chris - Did you mean "send to Warren?" - Allan

Sent from my iPad

> On May 11, 2017, at 8:27 AM, Chris Burti <clburti at gmail.com> wrote:
> 
> Please take pictures of the project and send this and any additional
> comments to Allen ...this would make a great Mainsheet article.
> 
> Chris Burti
> Farmville, NC
> 
> 
>> On Wed, May 10, 2017 at 7:43 PM, Dave Hupe <hoopdtwo at yahoo.com> wrote:
>> 
>> Update......
>> 
>> I have been in communication with Catalina Yachts in Florida (wrapping up
>> with Gerry Douglas who has been involved with the 320s since their
>> inception/hull #1). The following is their recommended repair to hopefully
>> prevent this problem from recurring:
>> 1) haul the boat again letting the keel hang to keep the rear crack open
>> fully during the repair
>> 2) clean out the interface all around the keel at least 2 inches outward
>> on the hull and keel (to eliminate mixed repair materials from past
>> fairings)
>> 3) use thickened epoxy to fill in again (use West Systems epoxy -
>> thickened as needed)
>> 4) fiberglass at least several layers all around the interface with 1808
>> material (Available data on the internet says this material contains 18oz
>> fiberglass woven at 90 degrees. On the backside a layer of 3/4oz fiberglass
>> mat is also attached. This material reportedly offers strength in various
>> directions and is great for many projects. Thickness is .048")
>> 5) Add fiberglass layers extending about 6 inches outward on both the hull
>> and keel .... to form a fillet (like the newer 320s that have the deeper
>> bilge) which should sufficiently strengthen the area so that such
>> cracking/separation doesn't repeat from seasonal lifting/putting on cradle
>> 
>> I spoke with Gerry about adding an additional aft keel bolt (say adding an
>> 11th keel bolt/lag screw in the aft bilge area to support/reinforce the
>> rear part?). This is not recommended by Catalina.
>> 
>> Wish me luck!
>> 
>> Dave Hupe
>> 1994 Hull #32
>> Holland, MI
>> 
>> 
>>