| PROBLEM |
CAUSE |
CURE |
| Spinout (tail
suddenly slips sideways), |
Fin giving too little
lift for sail's lateral force, |
Use more powerful (bigger)
fin |
| Board won't ride
flat (without toe pressure) |
fin giving too little
lift for heel weight on rail |
Use more powerful (bigger)
fin |
| Spinout only
when fully powered, Tighten outhaul, or when
over-powered |
Sail's center of lift
moving too far back over fin |
Tighten outhaul
or tighten downhaul |
|
Always too much force on one arm,can't sheet in all
the way to board center |
Harness lines unbalanced |
Move both harness lines
towards arm with most force |
| Too much force on
one arm in gusts |
Sail's center of lift
moving away from harness lines |
Move boom end
in the direction draft moves |
| Arms get tired |
Too much force on arms |
Shorten harness
lines, or lower boom & move mastfoot back |
| Can't sheet in
all the way (to board center) without hitting your butt on the
water |
Overpowered, or harness
lines too long |
Tighten downhaul
(or rig down), or shorten harness lines |
| Camber won't rotate
easily |
Too much friction or
force on camber |
Adjust cam narrower
(Ezzy, North), tighten downhaul, loosen cam batten |
| Tailwalking (board
nose rises uncontrollably) , |
Overpowered, or too
much pressure on back foot |
Tighten downhaul,
outhaul (or rig down) lower boom or move mastfoot forward |
| Rail or tail
of board rises uncontrollably |
Fin giving too much
lift for heel weight on rail |
Use less powerful (smaller)
fin |
| Both legs get tired
or are bent too much |
Booms too low, or harness
lines too long |
Raise boom &
move mastfoot forward, or shorten harness lines |
| One leg usually
bent too much |
Too much weight on
that leg |
Move one/both
footstraps toward that leg, change boom height &/or
move mast foot |
| Sail drags on
deck or water |
Sail's center of lift
too far from board's |
Move mast foot back |
| Gap under sail
( sheeted in with board flat) |
Sail's center of lift
too close to board’s |
Move mast foot forward |
| Can't plane |
Underpowered, fin giving
too little lift |
Loosen downhaul,
move mast foot forward, use more powerful (bigger)
fin, rig up |
|
* NOTE: every setting
is interrelated, so any one adjustment may require additional
trimming before the rig becomes completely balanced again.
You may need to repeat the entire tuning procedure several
times before it’s perfect for you. |
