1972 Keel Up Restoration

TJ, nice thread and detailed post. I have a question, thought I read the entire thread, but was wondering where you purchased the divinycell H80 from on the scrim fabric? Considering all options as I dig into this.....

 

I did quite a bit of research online for both the divinny cell and coosa and found prices varied widely. I wound up buying both from Advanced Plastics in Pelham, AL which worked out great as they are on my way from my house to my cabin where the project is thus saving shipping costs.

 

I have decided on a change to the motor well area. Here is the old design.

 

All the wood was attached to the deck but after the 3rd time it broke from removing the deck and re-attaching the deck I realized the design was too flimsy. I then took it back to this. You can see the old pieces on the right. I need more strength and structural integrity so I came up with the idea to have one piece of coosa be the bottom of the motor well.

 

And here it is fitted in but not yet glassed in. There was too much going on at the front center of the motor well with the port motor cables and the ski pole comeing out of one area so I had to seperate it. The ski pole is a major structural load that must be handled. The new motorwell bottom piece of coosa will directly transfer ski pole loads to the transom,side brackets, and the arch.

I am going with a ski pole that Pete from Dynaski is going to supply and this design will support the pole loads. This design should be bullet proof for twin 150's on the transom. The motor cables will come up from the front center of the motorwell for each motor. When the hull is flipped for bottom paint the underside of this will be glassed in to make a very strong box that should easily support twin 150's throttles being firewalled.

 

Did your original core have just balsa, or did it also have oak boards running forward? Curious if they stopped using the oak boards at some point. In my restoration thread you mention my core is the same as yours, just wanted to confirm if that included the oak strips, or was it all balsa strips?

Thanks, Brian

 

There was a second layer of wood but it was too far gone to identify. After reading your thread I am assuming it was oak. It was pretty heavy.

 

I was not thinking about the second layer you found it yours, this was probably pine that was added by someone else in an attempt to fix a weakening core issue. It would have been side by side with your balsa. I updated my thread with a picture of the balsa / oak layout and what I found.

 

The early 18's had a double layer core. Outer hull - core - glass - core- inner layer of glass.

jim

 

Yea Jim that is what I found.