January 16Jan 16 Do any of the knowledgeable folk know what sort of weight correction is typically needed on B and C rigs, taking A as baseline all-up weight?
January 20Jan 20 Author If boat is to min all-up weight with A then it needs to be also with B and C. Shorter spars, hence B/C would need some correction. I probably have a length of 11mm mast I could try to find and to work out g/cm. Got some lead (golf grip) tape which might make up the adjustment, just wondered if anyone already knew the approx typical difference in weights between rigs.
January 20Jan 20 Hi Colin,A broad estimate, dependent on boom types used across rigs, rigging etc will have you at approximately 20-30grams needed in your B rig and 45-60 grams in your C rig to match your A rig.Cheers Brad
February 2Feb 2 On 20/01/2026 at 19:48, Colin Helliwell said:If boat is to min all-up weight with A then it needs to be also with B and C. Shorter spars, hence B/C would need some correction.I probably have a length of 11mm mast I could try to find and to work out g/cm. Got some lead (golf grip) tape which might make up the adjustment, just wondered if anyone already knew the approx typical difference in weights between rigs.you can get in mast weight from Sails \ETC
February 2Feb 2 6 minutes ago, Mick Chamberlain said:you can get in mast weight from Sails \ETCAlso PJ Sails.
February 2Feb 2 I use this coiled lead, available in Canada. There is room in the 11mm mast to fit two strips side by side- figure the weight, and cut a strip - then cut it in half -may have to tap a bit with a hammer to flatten the lead to get it into the spar.https://www.canadiantire.ca/en/pdp/danielson-coiled-lead-1-lb-0789899p.htmlYou may find a similar product in fishing stores in the UK.John
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