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 |
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.
|