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Toroa foredeck layout as built
Toroa foredeck layout as built
1. The wishbone is constructed as per standard drawings, except that the
wire is secured either side at the reef box and pre-tensioned with two
small bottlescrews forward, attached to the main bolt.
2. In use the wishbone is suspended from two lines about a metre long
either side of the mast. This allows it to revolve around the mast. It
also permits the boom to move fore and aft when reefing.
3. The curve in the mainsail is adjusted with a choker (an idea borrowed
from a Nonsuch). In the pictures it is a non-stretch black coloured
line. It is secured on the port side of the mast with a stopper knot
through an eye on the mast, before passing forward through a turning
block mounted in the centre of the large bolt joining the jaws of the
wishbone. The line returns aft through the cheek block on the starboard
side of the mast, before descending toward the mast beam. It terminates
in a travelling block which is adjusted through the purchase from the
cockpit.
4. Tack reef pennants are conventional, all adjusted from the cockpit.
5. Clew reef pennants are currently adjusted at the clew outhaul/reef
box. Eventually these lines will be lead forward to blocks immediately
below the two ‘hangers’ and then down to turning blocks at the mast step
before again running aft to the cockpit.
6. The reef box is constructed from 3mm A4 stainless and was designed to
enclose and clamp the wishbone together. The clew reef pennants are
secured in three Servo cam cleats.
7. The sail remains stowed whilst in commission in the tubular tape
‘cradle’ and I have designed a sail cover to fit (blue in pic).
8. Anyone interested in seeing the boom or other aspects of a Pahi 42,
the boat is currently only 15mins from Glasgow airport. All welcome.
All credit for the majority of the pictures must go to Kay and Brian
Gilmore of Ashington, Northumberland.
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Posted - 1
January 2007
Topic ~
Pahi 42 wishbone rig
