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First of all, We would
like to thank you for choosing our TM sails - Third Millenium. Our
last generation sails are the results of longterm research and
development, specially intensive during last season.
Here are
some suggestions for a quick setting.
STEADY SETTINGS:
First you have to verify the following
measurements, which remain steady in all conditions and are the
starting positions.
| Mast |
Mast foot
position |
Prebend
|
Spreaders
lenght |
Spreaders
depth |
| Proctor K
|
43 cm |
3.2 cm
|
47 cm |
13 cm
|
| Superspar
M7 |
43 cm |
3.6 cm |
47 cm |
16.5 cm
|
Note : The mast foot position is taken from mast back-face to
center of centerboard-pin.
VARIABLE SETTINGS:
Let's now have a look at the
different settings for the various conditions:
| Wind intensity
(m/sec) |
Shrooders
tension |
Mast rake
|
Bowman position
|
| 0 - 3 |
38 |
612 cm
|
Leeward -
central |
| 3 - 6 |
39 |
609 cm.
|
Windward
- half trapeze |
| Over 7
|
37 |
604 cm
|
Full trapeze
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The tension is referred to tension loose gauge. If you use a
Superspar tensiometer decrease the values of 7 points.
HOW TO USE THE CHOCKS:
The chocks are linked to the
weight of the crew and to the wind conditions.
In very light
wind conditions (when your crew is in the middle of the boat) you
don't need the chocks because the sail has to be flat.
If the
wind increase and your crew is upwind you can start to use the
chocks to limit the mast flexion and to obtain the most suitable
shape for that wind conditions. You've to add more and more chocks
as the wind become stronger until you're able to keep the boat flat.
When your crew is not able to keep it flat you must gradually start
to take them off for depowering the
sail.
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