Hi Steve,
Gee Wizz I hadn't thought of concrete dagger boards thanks for the suggestion. Seriously part of the reason the boat was for sale is that it is a bit heavy for A-class. It has been sailing A-class at around 80kg. Also by the time I cut and shut the hulls and reinforce the outside of the front half of the hulls and the beam mounts, reinforce the mast to take the spinnaker etc. I think the boat will be hopefully OK. Actualy speaking of weight I think I still owe you a reply about how OZ mossies get so light. I don't know of anything specific, everything is made light but strong hulls are generaly 55kg some needing lead. Masts are fairly light and so are most of the fittings, booms are mostly small sections with the track cut off they do bend a bit but are strong enough. Centre boards and rudders are lite mostly fibre glass moulded with a foam core, rudder boxes and arms are tube aluminium. No big secrets I can think of, you just need to start with light hulls and keep everything to a minimum after that.Don't worry I will still be around the mossies. I just couldn't pass up this opportunity to have a go at taking on all other cats upwind and downwind before I get to old and look back thinking if only I had given it a go.
Regards Gary.