J/30 Class Association Forums J/30 Forum The Boat, Sails and Equipment prebend

It will start depowering the main earlier and will impact light air sailing. Most sailmakers have their designs setup for the optimal sail shape starting with the rig in the correct position. With 15 kt trade winds shouldn't even need to start the backstay tension.

Since you need to pull the mast to adjust the base position, if you are not doing racing, you can wait until a convenient time when you pull the stick. Otherwise if you are racing, you are taking a performance hit.

It being that far back is also effecting the center of effort but I cannot remember if this is creating more weather helm or less. Not enough coffee yet.

David
#397

[This message has been edited by dbows (edited 09-26-2008).]

it works like a windsurfer, mast aft and you turn into the wind, mast forward and you turn away from the wind. I moved the mast step from 2" off to the recommended 1" off the step, it made a significant difference in performance and increased weatherhelm.

I measured mine the other day and it is 1 1/4"
Is it worth the effort of advancing it the 1/4"?