23
Wire Halyard
Sheave box
Rope Halyard
Ø 4 (5/32”) Ø 5 (3/16”)
Ø 8(5/16”)
AL-45
Ø10(3/8”)
AL-70
Article no.
505-004-10 505-006-10
Sheave width
13 mm(1/2”) 13 mm(1/2”)
5.2.1 Sheave boxes
If the boat is equipped with a spinnaker halyard, this must be kept clear of the Furlex system to avoid
halyard wrap. An effective solution is to lead the halyard around the upper shroud and then down aft
the spreaders.
Stowing a spinnaker halyard parallel to the Furlex stay is not recommended !
The Furlex kit contains 2 halyard leads. If the mast
is equipped with two genoa halyards they should
each run through a halyard lead. The halyard leads
can be fitted side by side or moved round the side
of the mast if there is a lack of space.
To avoid corrosion between the bronze lead and the aluminium mast, each lead is supplied with a self-
adhesive insulator sheet. It is important to fit this between the lead and the mast.
Figs. 5.4.c-5.4.e give the fitting measurements for Seldén masts. These measurements can also be
used for other makes of mast, but the angle must be checked carefully.
An angle of more than 10° may result in unnecessary wear to the halyard lead.
Fig. 5.4.a
Fig. 5.2.b
A sheave box can also be fitted to the mast to meet the
5-10° requirement. The sheave box will not damage
the halyard, nor is it worn by the wire. Installation is
more complicated but the box will eliminate the need
to replace the halyard leads in future as above.
Newly manufactured Seldén masts on which Furlex
is to be fitted are always fitted with a sheave box.
Sheave box kits (with assembly instructions) are
obtainable from all Furlex dealers.
Fig. 5.2.a
5.4 Fitting the halyard lead
5.3 Spinnaker halyard
5.2 Halyard sheave box