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Tune-up/1
Tasar Tune-up Seminar
(reprinted
from North American Tasar Association newsletter 39, Summer 1993)
Jay Renehan presented an excellent two-day seminar at Jericho
on May 8 and 9, 1993. Jay
talked about how to sail better and faster with, of course, a lot of
specific references to the Tasar.
Jay began by referring to the article “Higher and Faster”
by Morgan Reeser in the April 1993 issue of Sailing World.
Almost everything in this article, which uses the 470 as the example
boat, applies to the Tasar (for the one exception, see below).
The following table summarizes Reeser's main points:
| Need
to point higher? |
|
|
Problem |
Cure |
|
1.Main
leech too open |
Increase sheet tension Bring boom closer to centreline with traveller Increase
vang tension |
|
2.Main
too flat |
Decrease
mast bend |
|
3.Lee
helm/not enough weather helm |
Increase
mast rake (* - see below) Lower
centreboard Move
crew weight forward |
|
4.Jib
entry too round |
Move
Jib lead inboard Decrease
headstay sag Decrease
jib cloth tension |
|
5.Jib
leech too open |
Increase
jib sheet tension Move
jib lead forward Decrease
mast rake |
|
Want
to Go Faster? |
|
|
Problem |
Cure |
|
1.Main
leech too tight |
Ease
sheet slightly Ease
boom farther off centreline with traveler Ease
boom vang |
|
2.Main
too full |
Increase
mast bend |
|
3.Too
much weather helm |
Reduce
leeward heel, flatten boat Reduce
mast rake (* - see below) Move
crew weight aft Raise
centreboard slightly |
|
4.Jib
entry too fine |
Move
lead outboard Increase
headstay sag Increase
jib cloth tension |
|
5.Jib
leech too tight |
Ease
sheet Move
lead aft Increase
mast rake |
*
Increasing or decreasing mast rake will increase or decrease weather helm as
Morgan Reeser states above. However
Jay says that on the Tasar the effect of changing rake on boatspeed and
pointing is the opposite of that shown in the table.
Increasing rake will help boatspeed but hurt pointing.
Decreasing rake will improve pointing but hurt speed.
Since weather helm doesn’t seem to be a problem on the Tasar when
the rake is varied within the allowable limits it might be best to ignore
Morgan Reeser’s advice on this point.
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