NORTH SAILS J/35, Tuning Manual

Page: 16 / 20

J/35
Tuning Guide
16
SAIL INVENTORY
UPWIND SAILS
Cloth Weight (denier/in.)
Regatta 3DL Mainsail .....................................................12600 dpi Aramid
Dacron Mainsail ...................................................................7.8 oz. NorDac
Regatta 3DL 155% Medium #1 Genoa ........................ 8820 dpi Aramid
Regatta 3DL 155% All Purpose #1 Genoa ..................12600 dpi Aramid
(If you are going to sail with one overlapping 155% genoa, we recommend this one.
The heavier dpi will help maintain the original designed shape after many hours of use
across a wide range of sailing conditions.)
Regatta 3DL 150% #2 Genoa ........................................14700 dpi Aramid
Regatta 3DL 103% #3 Jib ...............................................16800 dpi Aramid
103% #3 Jib ..............................................................................225TX Kevlar
SPINNAKERS
.6 Nylon or Poly Runner Design
The combination of the 2-sail rule in the class and the use of windward-lee-
ward courses make this the sail of choice in most conditions.
.75 Nylon All Purpose Design
Used primarily in wind speeds over 18k true, and closer reaching angles.
Set-Up your Medium #1
as an All Purpose Genoa
Increase the range of your 3DL
Medium #1 to perform as an All
Purpose Genoa by shifting gears to
match a wide range of conditions,
from 8-18 true. If you are going to
purchase a single overlapping 155%
headsail, we recommend the 3DL-
12600 dpi Medium #1 Genoa. Here
are a few suggestions on how to get
the best speed and range from your
Medium #1.
By changing the headstay length,
backstay pressure and lead posi-
tion, your boat will have that extra
bit of speed that is so crucial in
gaining the advantage in class
racing.
Use the range of headstay as post-
ed plus 1/2” either way. In very
light air, go to 48’-11.5”. The boat
will go really fast if steering and
crew motion is minimized. For
wind speed to 19 True, use 48’-9”.
In ultra-light situations, use just
enough halyard tension to have 1’
wrinkles.
For windspeed over 15 knots true,
set the lead so the bottom 1/3 of
the sail touches the upper shroud
and the leech is 15” off the top
spreader.
Make sure the backstay tension
can hit 4300 psi and use it wind-
speeds over 14 true. Sail with mini-
mum heel and maximum hike!
TWS 8 knots True
Top 18.2% @ 45.5%
Middle 13.1% @ 38.7%
The photo (above) of the Medium #1 onboard Bob & Kathy Patterson‘s
Fastlane.* Same design as shown on page 8.