Custom Rigging Articles, Hardware Articles

J92s Mainsheet Upgrade

J92s Mainsheet Upgrade


We were recently contacted by a customer having difficulties using their J92s mainsheet system.

The existing configuration had used two lots of purchase systems (shown below) , this was resulting in lots of friction and requiring the user to pull a whole load of line to exert any force on the main.

We upgraded the mainsheet system to a Harken fine tune system, which allows much greater control over mainsail trim. The course section (6:1) is used to trim the main to 90% trim. The 4:1 fine tune then exerts a 24:1 force on the mainsheet which is far greater than the multiple purchase on one line used before

The fine tune purchase also allows for much smaller sail adjustments in the gusts, small sheet ease and trimming can be carried out effortlessly

We also removed the traveller car and carried out a ball bearing change to improve the use to the car.

Before and After

J92S Mainsheet system













Course / Fine Control




Traveller Ball Bearing Change


About Ocean Rope

Ocean Rope are an online rope and rigging shop. We pride ourselves in offering an unbeatable custom rigging service. We are here to help with any rigging project you may have,

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