Hi Simon,
Top main sheet block should attach to the boom so that when the boom is over the end of the traveller track the rope is vertical. If my memory services me correctly it is a couple of hundred mm’s behind the track when sheeted on hard. The thinking for positioning the block behind the travller this to put some forward force on the boom to help rotate the mast when sheeted on.
Last edited by First_Try; 09/24/10 04:55 AM.