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GENOA
Our Silver Drive Genoa (Tape Drive) it has a very durable
design to withstand all wind conditions, besides having a
cross cut with tapes in the direction of the re-enforcements,
it allows the sail to be more responsive and have more tension
on the luff and the Cunningham allowing for better and more
consistent adjustment of the luff tension. The Genoa covers
the range of 0-17 knots of true wind speed. With a properly
tuned rig the Genoa can be adjusted by the halyard tension,
tension on the sheet and the position of the car.
Cut:The
Genoa is a Tape Drive cross-cut made of Mylar/pentex optic
with radial Kevlar reinforcements -Now allowed by the class
rules-
2 visibility windows, telltales window, Tack line patch, 2
draft stripes and sail numbers.
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Genoa
trim:
Position the Genoa lead so when over trimming, the Genoa touches
the turnbuckles and the sail remains 1" from the spreader.
Then free the sheet and position the sail according to the tuning
chart. With the sail in position, head slowly toward head to wind.
The telltales will need to break first in the upper part of the
sail a second earlier than the lower part. If the telltales break
evenly, move the lead back one hole. If the upper part breaks first
(by more than one second) move the lead forward one hole.
Halyard tension affects the draft position of the sail, In light
air, the halyard should be tensioned for no wrinkles in the luff
(nothing more than that). As the wind increases, allow wrinkles
in the luff. This will move the center of effort of the sail back,
improving pointing ability. With more wind, 13 to 15 knots, tension
the halyard until the wrinkles disappear. Do not over tension the
luff of the sail. Use the Genoa cunningham to fine tune the luff.
If you cannot point, chances are one of these items has occurred:
- An
over tensioned Genoa sheet.
- Too
much tension in the Genoa luff
- A
loose mainsail leech.
Headstay
Length:
The headstay length should be the maximum allowed by class rules.
The
measurement is taken from the center of the headstay pin at the
hounds to the intersection of the stem/sheer line. The total length
should be 8670mm. Because the headstay hole in the bow of your boat
is approximately 65mm up from the stem/sheer line intersection,
the actual length of the headstay from the centers of each hole,
should be 8605mm
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SHROUD TENSION CHART
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Wind - Knots
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Uppers**
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Lowers**
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Stay**
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Genoa*
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0 - 3
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16
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10
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-12
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6 - 8”
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4 - 10
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20
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15
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-12
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3 - 4”
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10 - 15
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24
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21
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-5
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1 - 2”
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15 - 18
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27
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26
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0
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6”
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18 +
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Use Jib, not Genoa |
*
Distance from Genoa to spreader. If the sea conditions are smooth (flat seas) in winds from 8 up to
16, use 1” less distance to the spreader.
**
Loose gauge Model B.
Tip: Write this chart on the deck with the amount of turns you need to
move from one tension to the other.
Genoa tracks: To fine tune the Genoa, it is important
to have extra holes in the Genoa
track. Drill holes between the existing factory holes.
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