Spinnakers
APC (Asymmetric Power Cruiser)
Downwind sailing has never been easier or more fun!
The Doyle APC has opened up a whole new realm of simple,
fun-filled sailing with an easy to set and fly asymmetrical
spinnaker. Dousing it is easy and trouble free with the ATN
Spinnaker Sleeve.
The Design
The APC is designed specifically for the cruising sailor. It is
slightly smaller in overall dimensions than the racing APR 90,
but has the same attributes. The even entry allows easier
trimming and stabilizes the sail. A flatter leech creates less
backwind for better reaching. The longer luff gives the sail
more drawing power, and gets more area out in front of the
mainsail. This is very effective in the 100-130 degree
apparent wind angles. The shorter leech allows the sail to
be more easily trimmed on all points of sail.
The APC is a stable, powerful sail that will improve your
offwind performance.
Its unique geometry, combined with an aerodynamic
cross sectional shape, allows the sail to fly out away from
the boat in undisturbed air. This applies more force on the
boat and increases your downwind capability.
The ATN Spinnaker Sleeve
The ATN Spinnaker Sleeve is carefully designed to ensure
it does not foul the spinnaker when setting or dousing
the sail. The control lines run in their own pockets separate
from the sail itself, and consequently cannot get tangled.
The sock is made from a loosely woven "slippery" material
for friction free usage.
UPS (Utility Power Sail)
This sail is the link between headsails and spinnakers, with a
wider usable wind range than either. It sets and furls on its
own luff rope and furler. It cannot collapse like a Spinnaker.
Effective wind range 33-180 degrees AWA. Triangles make
very inefficient airfoils. Elliptical shapes reduce the energy
robbing tip vortices. This is why aeroplane wings, propellers
and even keels are always elliptical rather than triangular in
form. It is also why high roach mains are so much more
efficient than mains with little or no roach. The same is true
for headsails. As a result, the racing rules limit or prohibit it.
When sailing hard on the wind the jib and main work almost
as one, and thus the combined elliptical profile determines
the aerodynamic efficiency. When eased off, or reaching, the
sails act more independently and the geometry of each is
critical to performance. The sail designers at Doyle have
developed shaping techniques that support critical roach
area in headsails without the need for battens so you can
enjoy the efficiency of an elliptical form and have a sail that
can be easily furled! Thus, not only does the Doyle UPS
provide more area for light air and for off the wind sailing it
provides much greater efficiency!
All Purpose Full Radial Spinnaker
The All Purpose Full Radial Spinnaker is designed to be used
at 80 - 140 degrees AWA and up to 15 knots AWS. This sail
is designed to be the work horse of any inventory and covers
a large range. It has fuller girths and is designed to lift and
fly away from the boat. The top 10% of the sail being flatter
allows the spinnaker to set away from the rig before the
body of the sail curves down. The result is a sail that flies
out to windward, away from the disturbed air of the mainsail
and rig, in clear air flow.
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