Mainsheet block riser

published 10/09/2024

The question has arisen about a situation where a riser is fitted under the main sheet block. The applicable rule is the console rule C.7.5.(c).1.(ii).B. “No fitting shall be attached on a base higher than necessary to ensure a fair lead”.

The interpretation is that no fitting can be fastened higher than 30 mm below the cockpit coaming. For example, the base of the mainsheet Swivel Unit can be no higher than 30 mm below the cockpit coaming.