Had an unfortunate experience just recently when one of my crew (relatively unknown to me), decided the best way to furl a reluctant headsail was to place the furling
line on the genoa winch
and grind away with the handle. At the time I was up at the furler
trying to see what the problem was, initial thought had been a riding turn. Dismayed to see the furling
line go bar tight, then the furler
started to turn easily and at the same time, the genoa halyard
fell out of the slot in the side of the mast
Following day I went up the mast
to run a new halyard
, and felt sick to see that the top cap of the foil was missing, the top of the foil was crushed, and that the forestay itself had started to open up at the termination. (I sat up there for an hour, to let the rage dissipate)
That said, I need to prevent this happening again. The halyad was I believe correctly tensioned. While examining the top of the foil I noted the following.
The top swivel is attached directly to the head
of the sail, there is about 15 inches of bare foil above the swivel. Sitting above the foil, around the forestay is one of those donut type diverters. This set up means there is about 18 inches of halyard between the mast head
sheave and the top of the swivel.
To my mind, this set up leaves too long a length of halyard, and that the angle between halyard and stay is too small.
Can any advise if following will be of benefit.
1)Fitting a strop between head of sail and the upper swivel of the furling system to reduce the length of the exposed halyard (bringing the swivel closer to the halyard sheave.
2) Fitting a diverter to the mast below the halyard sheave to increase the angle between halyard and stay.