Mine bolt rope (3/8" polyester sewn to the sail)
stretches as the outhaul is heaved tight and the
sliding slug at the clew slides aft. The sail stretches at
the foot and the shelf actually closes so it is not even
evident. Only when the outhaul is slacked off to produce
a fuller sail is the shelf expanded.

Hey Simple, I keep telling you that you know nothing about boats. The main in
that photo does not have a shelf foot.


S/V Express 30 "Ringmaster"
Trains are a winter sport