Rudder Blade

The rudder blade is not made from solid timber as suggested by Dudley Dix but from ply restovers. In order to make it not too heavy it is hollow inside. The outside of the blade is carbon coated. I had good luck and got a fitting restover carbon fabric restover quite cheap. The photos show the production steps executed during December.

Fore Bottom Segments Planked

The ply is stiched to the backbone by using copper wire from electric cables. The shafted joint between bulkheads C and D is fixed by some loads I had culled me on the fly.

 

 

 

Working time been invested: 804 hours

Lower Side Of The Keel Shaft Before Planking

The upper photo shows the lower side of the keel shaft after stringers and bulkheads have been faired and are prepared for planking now.

The lower photo shows the thickness off the coating inside the keel shaft. The epoxy-copper-oxide is about 1mm thick. As scale bar one can use the thickness of the 12mm-7-layer plywood of the shaft.

Aft Bottom Segments Attached

First Hull Segment Attached

Engine Shaft And Anchor Case

In contrast to the original design, the TRÄHOLM will get no outboard engine, but an electric engine mounted in the shaft. The both photos on the left side show the shaft.

The photos on the right side show the future anchor case. I set the bottom in place before planking the ship's side.

 

Upper left photo: Shaft from downside before bottom segments set in place and before cockpit floor is opened.

 

Lower left photo: Shaft from upside after cockpit floor has been opened.

 

Doubling The Tangent Stringers

The tangent stringers are the transition from the flat ship's side and flat bottom  to the round radius sections. The tangent stringers have to be doubled to join the plywood segments. The doubling is made from a 10 mm ply strip of 75 mm width. I had already scarfed the plywood strips to 7.5 m length from restovers.

Doubling the upper tangent stringer on starboard side.

Doubling the lower tangent stringer on starboard side.