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Selden Products

Selden Flying Fifteen Alto Mast (F15/MAST-ALTO)



Selden Flying Fifteen Alto Mast

All Seldén dinghy mast sections have been designed to give the best stiffness to weight ratio available in an alloy extrusion.

Material, section shape and size, and wall thickness all have a major effect on both the static and dynamic bend characteristics of a tube. These details are studied in the design of every section and are carefully checked on every piece of spar tube Seldén use.

Alto is 5% stiffer than Cumulus it is used by heavier teams looking for extra power in marginal conditions.


CNC plasma cut tapers for ultimate accuracy and consistency

Heat treated after tapering increases material hardness.

Durable peened finish.

Welded in headbox.

Optional dealer fit halyard lock.


Ball bearing spinnaker halyard and pole lift boxes.

Fully adjustable spreader system.

Vernier spreader length adjusters.

Gooseneck with stainless steel spigot and positive lock.

Optional extended gooseneck.

Automatic release of outhaul and boom squares further downwind.

Integrated take off for rig tension system.

Section weight: 1.073 kg/m

Dimension fore/aft: 70.5 mm

Dimension athwart: 59.5 mm

Stiffness fore/aft: 21.49 cm4

Stiffness athwart: 14.96 cm4


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