G'day,

Thanks Darryl, I figured on a layer of 200 gsm glass instead of the csm either side of 2mm coremat, but will do some tests to see. About 3 kgs /sqm, plus veil and gel, which is not a lot heavier than a foam laminate on 8 sq m of hull and decks.

Bvinning
I have been asked to design a car toppable harryproa (harriette) for kids to learn on. Standard spec: light enough to car top, easy to rig and sail, cheap to produce, safe, indestructable, fast etc. Not sure if it will happen, but it is fun rethinking the build for mass production and checking out the options.

Thanks to all who replied.

regards,

Rob.