Enterprise Seldén Mast D+ Sleeved - Ex. Rigging Pack 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. The D+ section was designed specifically for the Enterprise class, which, with its deck stepped rig and minimally tapered topmast, requires a very high sideways stiffness for offwind speed but combined with fore/ aft bend characteristics which enables power upwind to be controlled through fore and aft mast bend. The D+ masts are using the new Xtra Proof Strength (XPS) aluminum alloy. Supplied complete excluding rigging (see related items). NOTE: This is a collection only product. Features: All masts are made from XPS aluminium. CNC plasma cut tapers for ultimate accuracy and consistency Heat treated after tapering increases material hardness. Durable peened finish. Welded in headbox. Mast Properties Sectional Weight 1.03 kg/m Dimension - fore/ aft 73 mm Dimension - athw 57mm Stiffness - fore/aft 19.5 cm4 Stiffness - athw 14 cm4
