The position of the chainplates is define as “centrally above the chain plate blocks” (step 41 building notes)
The chainplate blocks are fixed “hard against the forward face of the centrecase bunkhead” (step 28 building notes)
The dimensions of the chainplate blocks is 150x48x18.
The position of the centre of the chainplates is therefore 24mm (half of 48) forward of the forward face of the centrecase bunkhead.
There will need to be extensive consultation with Members and States before there is a National vote on any major changes. This is not a quick process and may take a year or more.
John Dixon
National Measurer