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1 Introduction
1.1 Key features
Congratulations on the purchase of your new Furlex jib furling system. Furlex jib furlers have been engineered
and manufactured by Seldén Mast since 1983. The system has been continuously developed over the years and
we are now launching the fourth generation Furlex, the most sophisticated single line jib furling system so far.
Maximized luff length
The luff extrusion foil shape remains unchanged all the way down the furling unit. This allows the whole sail
to be furled in an even roll - right down to the tack of the sail. This is essential to acheive an efficient sail shape
when the sail is reefed.
Load distributors
The patented load distribution technology of the Furlex system disributes loads over the entire ball race. This
reduces friction, provides smoother furling and considerably reduces bearing wear.
Low torque tack ring
The tack ring ”free turn” allows for the luff to be furled one turn before the tack. This makes for a flatter and
more efficient sail shape when the sail is reefed. Reduced tack ring diameter in combination with a low profile
shackle – or an optional soft shackle – reduces the amount of effort needed to furl in that first turn significantly
compared to earlier models.
Soft shackle ready
The tack ring and halyard swivel eyes are prepared for using textile loops. All surfaces are smooth and nicely
rounded.
Aero grooves
Similar to the dimples on a golf ball, the Furlex AERO groove system reduces drag and creates better
aero dynamic flow around the luff extrusion.
Third bearing
By the addition of a third roller bearing between the main ball bearings of the drum unit, the load from the
furling line is distributed over a large bearing area, reducing furling friction even further compared to earlier
models.
Floating connectors
The 316 stainless steel connectors are subjected to vertical loads only and no torsional loads.
Torsional loads are now taken by the join pieces alone which leaves the connectors “floating” inside the join
thus reducing wear inside the joins.
Air gaps
Every join in the system is made with a nominal gap which means the extrusion ends will never get in contact
with each other. This way there will be minimum chafe and no aluminum deposits staining on your new sail.
Jaw lock
Double screws through the rope and locking jaws ensure a bullet proof locking of the furling line.
Mobile swivels
Both the halyard swivel and the drum unit can be easily removed from the foil for off-season storage. This
facilitates storing the foil with the mast and makes handling easier.
