J/35 Tuning Guide
8
UPWIND SAILING - LIGHT/MODERATE AIR
155% Medium #1
Genoa 8820 dpi
(high modulus
Kevlar)
Range is 0-15 (14
true). The mid-
leech at the top of
the range is 6”
away from the
lower spreader.
AIRBORNE is showing good fore and
aft trim sailing upwind in 14 knots
true wind speed in flat water. Heeling
angle, crew placement and hiking are
crucial for speed-building. The first
crew should sit just aft of the
chainplate, with the rest hiking
cheek-to-cheek. Here are some other
fast notes based on this set-up:
Genoa Trim
Touching chainplate, leech is 4”
away from the top spreader.
Mainsheet tension sufficient to
bring the top batten parallel to the
boom, or 2° open, since boom is 6”
below centerline.
Checkstay tension to position
draft ahead of center - this equals
just under 1000 lbs.
Mastbend curve is even.
Cunningham tensioned to carry
only a few 1’ wrinkles from the
bottom 1/4 to the tack.
Steering to 4th telltale (4th gear)
This is what FAST looks like.
Headstay - 48’10-1/2”
Backstay - 3200 lbs.
Outhaul- Tight
True Wind Speed =14 knots
TWS 14 knots True
Top 17% @ 44%
Middle 14.3% @ 39%
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