Hammerhead 12 Poxyglass

[Hammerhead]

I guess I have too much time on my hands. Is that a good thing? Well my next project will be an attempt to make a Hammerhead 12 completely out of epoxy and glass cloth. What are the benifits? Hmmm! Not sure. I did have a great time making a mold and forming my own cowl for my 21 rigger. It went very well. So why not give a whole rigger a shot? You don't see too many 100% glass riggers out there. The last one I had was a Young Blood 90. It was made with polyester resin though. It was one tough rigger.

I started making the upper plug for the sponsons. I will use the same upper plugs for both the starboard and port sponsons. Using 1/8" ply to sandwich 7/8" thick balsa. I will also use 1/8" balsa on both outside surfaces so I will be able to contour a positive relief into the plug easily.

 

[Jim Mamaril]

Very interesting project,let me know when you need hardware.

 

[gil sonsino]

Go ahead Hammer I see lot of benefits in a epoxy fibre boat..it wil last for long time..just make sure it will not weight more than a woody boat.I have my big boats made of molded carbon fibre based on SGX riggers with 91/101 motors running hard for almost two years and they look like brand new when compared with other wood boats built at the same time .Let we see your progress and good luck with your new baby.

Gill

www.grsboats.com.br

 

[Hammerhead]

Jim,

I will definately need custom hardware for this. It may take several months of plug building before I'm even ready to lay one up. I think in all, I will have 6 molds to make.

 

[Hammerhead]

Gil,

The plan is to use 2 ply #6 cloth on most of it. Should be light as a feather. Too light is not necessarily a good thing either.

 

[raptor347]

We can talk composites and molds at the Marysville race in 2 weeks. I've been building composite riggers for years. The have some serious advantages if done right.

 

[Hammerhead]

See you there Brian!

 

[Hammerhead]

I finished the sponsons upper plug. Still need to do a bit more contouring. When I'm finished I will seal and paint it.

 

[Hammerhead]

I started on the plug for the tub. You can see that the radio box and engine/tank compartment areas are inset to accept the engine cowling and radio box covers. After completing the engine cowling, I will seal these and prepare them to pull molds. After pulling the final products from these molds, I will be able to get an exact measurement for the bottom plugs. The intent is to have them slide perfectly inside the upper parts. Their width will depend on how thick the upper products end up. This all depends on how many layers of glass I have to use to achieve good structural strength. I'm assuming 2 or 3 layers. The sponsons will also have slight anti trips incorporated into the bottom product. I couldn't figure out a way to leave them out because the upper has positive angles on both sides so it will be able to release from the mold.

 

[57fairlane500]

Looking good Marty. Are you planning on vacuum bagging? Bring them with you this weekend, I would like to see them in person.