They are custom made by myself using parts from Adam Hall. I used a plastic material called Astroboard for the sides. It’s 4.5 mm thick, and a bit lighter (but lots more expensive!) than the equivalent plywood. The Adam Hall profiles are made for the 4.5 mm material, so putting the boxes together is just a matter of cutting the profiles and boards to correct dimensions, and then pop-riveting/gluing it together. If I remember correctly it took me about three weekends to put together the rig and boat boxes.

I’ve planned many times to take some better pictures of the boxes and document the design and construction… so far there’s a simple sketch and some pictures of other rig boxes in the 2006 Styyra.

Anders

I’m not sure about the method that Graham or Craig uses to attach the mainsail, you might ask them they directly by email - most radiosailors are happy to answer direct questions, even at world champion level !

I could not pick up any significantly new trends in trimming the boats during the worlds. In general, at least in non-drifting conditions (wind above the lightest no1 windspeed), “if you have to steer (either up or down) on the beat you are too slow” applies.

Anders