SCR rod is solid, not bundled. Solid
construction eliminates the air trapped
between the small pultruded elements
(such as C6) or yarns (PBO) and does
not require a braided external sheath.
SCR’s solid carbon construction,
not bundled rods, makes it one of the
smallest diameter carbon rods for equal
stretch on the market. Solid rod also
means no moisture issues. The small
diameter of the solid rod means less
rig drag, which translates into more
speed and less heeling moment. On average,
SCR has 15% less windage than either
PBO or bundled carbon products.
Hall SCR Airfoil drastically reduces
drag by reducing frontal area to its
absolute minimum. SCR Airfoil is a full
50% smaller in frontal area than C6.
The aerodynamic advantage of SCR Airfoil
is VPP-quantifiable in meters per hour.
According to computer modeling, a 40-foot
boat with SCR Airfoil on a 4nm windward
leeward course will have a seven boat-length
advantage at the finish line over an
identical boat with round carbon shrouds.
The life expectancy of SCR matches the
life of a Hall carbon mast, which, when
properly maintained, can last several
decades. Because Hall SCR is solid carbon,
it resists harm such as rope-rubbing
chafe and impact damage. Only extreme
cases of mishandling begin to affect
SCR. Properly used and cared for, SCR
will not require replacement for many
The maintenance schedule of SCR calls
for an annual visual inspection, with
the first full inspection (with rigging
removed from the mast) after five years.
The full schedule extends out to 10
years. By this time, an owner will have
replaced a full set of PBO (polybenzoxazole)
SCR Round rod passed an exhaustive series
of 16 tests to achieve type approval
from Germanischer Lloyd. While there
are strict confidentiality limits on
releasing results of the GL testing,
we can confirm that tensile, fatigue,
impact, and chafe tests were all part
of the process, and SCR solid rods passed
Design: The annual DAME Awards
recognize new and innovative products
in the marine market. Among 125 entries
from 21 countries in the 2009 contest,
SCR was the winner in the largest category
– Deck Equipment, Sails, and Rigging.
The DAME jury described SCR's end fittings
as "superbly designed," and
the press release stated "The jury
liked the sleekness and simplicity of
the design and the ease of installation."
Set-Up: Hall's SCR discontinuous
rigging features our unique, easy-to-install
Split Tip Cups that are custom machined
for SCR stemball terminals. Adjustment
of diagonal shrouds is effected at the
spreader roots with SCR tapered turnbuckles.
Hall SCR uses only Titanium
connections with the carbon rod. Titanium's
inertness prevents dissimilar metal
rusting that results, for instance,
when carbon is mated with stainless
steels. At half the weight of stainless,
Hall's Titanium end fittings are the
smallest and lightest end fittings available.
Set-up: Hall's SCR continuous
rigging is made by fusing the vertical
and diagonal shroud elements to form
a single, homogeneous piece of rigging.
We've completely eliminated the spreader
hardware and stay terminals, reducing
the windage and weight of the standing
rigging package to its absolute minimum.
The low-profile rigging shape as it
passes through the spreader allows us
to offer a minimum size, elegant spreader
to Existing Masts: You don't
need a new mast to take advantage of
the performance gains offered by Hall
SCR Airfoil. With a straightforward
re-work of your spreaders and replacing
a few fittings, you can have SCR on