On Fri, 22 Aug 2008 13:34:14 -0400, Ryk
wrote:

On Fri, 15 Aug 2008 22:24:51 +0100, in message

Goofball_star_dot_etal wrote:

On Fri, 15 Aug 2008 17:12:51 -0400, Ryk
wrote:

I agree that loading up the sheets of a furled jib using the
mechanical advantage available with a handle in the winch would be a
bad idea.

Isn't that exactly what happens during normal sailing?.. (reefed)

Not quite. When fully furled the sheet loads are applied to the foil
as a nearly point load, rather than distributed.


Fair cop, although you have moved the goal posts a bit to consider the
bending stress on the foil or the forestay tension rather than just
the stresses associated with twisting of the foil. I am amazed that
roller furling foils cope at all..