Work on Stern Continued

Spring comes and temperatures are rising. The works on the stern can be continued.

I covered the scoop edge with 10 mm Sapeli ...

... and reinforced the stern in the area where later the rudder is attached.

A Potential Dirt Corner Is Filled



The gaps between the stringers in the stem area

are hardly accessible an therefore potential dirt corners.

I flooded the whole area with epoxy. 

WARNING to copyists! 

The task has to be carried out very carefull due to the heat producing curing of epoxy. I did it in several steps with just small portions epoxy and a slow hardener. 

To fill the stem-knee I first glued a small dam.

In the last step, I filled the corner with waste wood pieces and epoxy.

The figure illustrates the filled area

Interior Joinery Continued

The salon is finished in the shell - basically. The rest are painters and parquet recliner, but not this year.

Interior Joinery

Meanwhile it is to cold for working with epoxy outside the hull. Therefore I will focus on interior joinery until spring. Due to a tarp over the hull, it is possible to warm up the interior about 10 °C above ambient temperature with 1 kW heating power.
Two weeks ago I started the work on the V-berths in the bow section.

To capture the irregular hull contour I tinkered first a template out of cardboard.

Then I transferred the template on the plywood.

After a few minor adaptation work the bench locker cover fits.

Scoop Edge Planed and Sanded

	Polished cut image of the scoop edge. In the middle of the Picture one can see the upper tangent stringer with the plywood doubler in-between the softwood filling.

Polished cut image of the scoop edge.
In the middle of the Picture one can see the upper tangent stringer with the plywood doubler in-between the softwood filling.

Scoop Completed

I filled the space between the stringers with various softwood residues.

Then the surface was sanded ... 

 ... and coated by plywood afterwards.

  

Working time been invested: 1291 hours 

Keel Fillet

The Dudlex Dix design requires to reinforce the 12 mm thick backbone with 300 g/m² fibreglass fabric over an epoxy fillet on the inside of the hull.
I decided to make my TRÄHOLM  more robust. The thickness of TRÄHOLM's backbone is 20 mm and the fillet is covered with two layers 187 g/m² fibreglass fabric.

 

 

Keel Construction Detail

The hull has been coated with biaxial fibreglass of 600 g/m² weight. Steerboard and portside  coating overlap the keel by about 10 cm. Additionally the keel has been coated with one layer 187 g/m² fabric of 150 mm width and an additional layer 187 g/m² fabric of 75 mm width. Inside of the hull the keel-backbone has been reinforced with an high density epoxy fillet and two layers 187 g/m² fabric.