It's been drawn to my attention that some boats are being rigged with an purchase on the adjustable jib tack. In the example above, the black and white line starts on the forestay attachment fitting, goes through the jib tack cringle, around a block to a cleat. By going though the jib tack cringle, a purchase of 2:1 is created. The rule governing adjustable jib tacks is 1.7.4
1.7.4 The tack of the jib may be secured so that it can be adjusted while racing provided that no mechanical advantage is gained by the adjustment.
To comply with the Class rules, the line needs to be attached directly to the jib, and then led around the block to the cleat.
I understand some boats are racing with forestay systems similar to the photo above where the forestay leads to a purchase with a cleat near the mast foot. This system was ruled illegal by ISAF in 2010, but prior to that it was fitted to some boats (mainly Winders). If you have such a system, please change it to comply with the class rules.
The RYA are running Sail Measurement Courses over the winter that might be of interest to existing Class Measurers in need of re-validation or prospective measurers.
The Course at Carsington Sailing Club happening on 2nd December 2017 closes this week, so it would be great to confirm any other attendees as soon as possible.
The wooden boat specification has been updated. The new version is in World Sailing's Standard Class Rules (SCR) format & generally updates the specification reflect changes in boat building & the marine industry since the last specification was issued.