Update

The Epsilon section, with purpose designed ‘F15’ lower sleeve, has been the ultimate combination backed by many championship wins in the last few years.

Developed with Steve Goacher and Alan Bax, all the top sails are designed to suit the Epsilon.

The Seldén 2633 Boom has the unique strength for weight characteristics necessary to achieve absolute mainsheet and kicker control, and our boom slides allow direct attachment of kicker and mainsheet blocks for efficient centrelining.

Results

1st-5th World Championships 2001

1st National Championships 2001, 202, 2003

Why Seldén?

Choose a Seldén mast and you will find many performance enhancing features unique to our products, for example:

• The Seldén tapering system ensures that our tapers are minimum size and weight. This gives low windage, centre of gravity and topmast weight. This maximises your speed by enabling the topmast to react quickly to gusts and waves giving better acceleration, a smoother ride upwind and, ultimately, more races won!
• Automated welding keeps excess heat out of the taper for guaranteed consistency and performance. The weld produced is so perfect that there is no need to mechanically grind the weld (which can induce inconsistencies). This means that once we have finalised a winning design, you can be sure that your spar will perform identically to the champions.
• All masts are heat treated in our purpose-designed oven. This artificial hardening ensures that you get maximum performance from the high performance aluminium alloy.
• Our spars pass through a purpose-developed bead-peening machine. This gives the mast a perfect satin finish that dramatically improves fatigue properties, giving you a mast that will perform reliably for many years.
• Top quality fittings such as our fully adjustable spreader bracket and highly durable cast gooseneck ensure speed and reliability on the racecourse.

Sections Available

Mast	Epsilon
Boom	2633

Mast Specification - Epsilon

Standard mast includes new 4-sheave heelplug, two vang straps, bonded sleeve at deck level, ball bearing pole lift and spinnaker halyard sheaves, and fully adjustable spreaders. Mast is supplied overlength as standard.

Boom Specification - 2633

Standard boom includes cutaway outboard end for reduced weight, increased clearance. Boom is supplied with inboard and outboard ends with sheaves plus three boom slides.

Spinnaker Pole Specification

Standard pole is super stiff 42mm tapered pole with piston ends.

Rigging Specification

Included as standard are kevlar main halyard with cleat, kevlar pole uphaul, heavy-duty jib halyard, shrouds with swaged lower eyes and shroud covers.

Tuning Tips

Mast heel	93mm from aft mast step bolt to front keel bolt
Spreader Length	422mm (side of mast to shroud)
Spreader Deflection	197m (aft edge of mast to straight line between shrouds)
Rake & Rig Tension
Wind Rake Rig Tension 1-10 knots 7550mm 135 kg 11-15 knots 7500mm 180 kg (flat water) 160 kg (rough water) 16-20 knots 7440mm 135 kg 21 knots+ 7420mm 115 kg
(Rake measured from black band to top of transom with deck level control eased.)