Thursday, December 16, 2021

Heavy weather and Storm jib rigging.

With calm weather on Wednesday I was able to check the fit of the new heavy weather jib.

The Dyneema inner forestay (reeved through the original starboard
jib halyard sheaves) is tensioned from below with 4:1 tackle going
 back to one of the 23:1, 2 speed winches at the aft end of the cabin roof.
The stay, block and snap shackle have break loads of more than 2 Tonnes
the shackle on the tackle is a weak link to protect the rest.
I added the u-bolt for this and to attach the main preventer for maximum leverage.
The heavy weather jib is normally hoisted with the
spinnaker halyard (removed for the winter) rather
than the wire genoa halyard.
The stay should clear the furled headsail but I can move the tack back a little if necessary. I was cautious when I measured up, particularly to clear the radar reflector. The sail is 12.1 square metres, looking at in place I could probably have had it made c10% bigger by lowering the clew a little and lengthening the luff and leach but this way at least the foot should clear of waves.


The genoa sheets need to stay on the sail when the heavy weather or storm jib is in use, previously I had a block on the toe rail and a non adjustable tweaker to narrow the sheeting angle, that was not going to work well with a larger sail likely to be used fairly often, I therefore put a dedicated block ahead of the genoa sheeting track, the sheets go back to the large spinnaker winches on the cockpit coaming, the port one via the toe rail to get a better angle onto the starboard side of the winch. 

A low friction ring is used on a barber hauler system with a three part tackle going back to a cam cleat on the side of the coach roof. The front block goes to the bottom of main shroud and attaches with a  snap shackle so that when not in use it can be clipped to the mast keeping the tackle clear of the walk way. The loose part of the dedicated set of sheets go into a bag on the mast.
The Barber hauler set up. It should not need to be
hauled in this much, note the whippings at intervals
to speed set up.
Sheet block on the right just ahead of the genoa sheeting track.
The "Treadmaster" pad intended for steps, protects the deck from
the blocks and should reduce any noise if they move.
Leaving Fowey for the Fal, 2023 with just the
heavy weather jib, later the wind was gusting F7
More on storm jibs etc can be found on my earlier piece "Storm Jibs".

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