neutrino DINGHY




The final concept was based on a hard chine with 3 continuous panels from aft to fore – an integrated transom. Skeg to be added.

The panels were extracted as single-curve surfaces (important premise) and in scale.


Transfer of lines by LCD projector and pencil onto ¼” foam core (4’x8’). One whole side of the vessel on one board. Outline and centerline section – two more boards. 4 boards in all + .

Accuracy is good. I reckoned that if I stayed within 1/16 (2- mm) it would be okay. The lines were fuzzy ;)

The projection had horizontal and vertical control lines to assure even distribution and square-ness.


….don’t touch the projector, and don’t mess with the boards once they are adjusted on the wall.





The two sides were cut in one sweep with a sharp knife. The boards were stuck together with dbl stick.

So far I’ve used …say 16 hours altogether.


I started by gluing the garboards together, but soon realized that it was the wrong end …….




By turning the hull and starting with the gunwale directly onto the transferred outline and centerline (together they assure the right geometry), the panels were glued with hot glue and clamped.

The quarter panels needed additional diagonal scoring to enable the turn of the surface. In general, the panels were scored (outside) between every 2-8 inches.

It took one day (10 hours) to glue the thing together, and half a day to fit the skeg which was fabricated from polyurethane modeling foam.

My initial intentions was to leave the scoring lines and allow the facets to show, but I surrendered, and started spackling – using light weight, expensive, fast drying stuff. The first attempts were no good ;)

Cost so far: a hundred bucks or so….






specification and design




testing and critique




Jan-Henrik Andersen 2005

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