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The Need for Speed:
Losing weight on the
board
by: Marc A. Lefebvre
So you want to go
fast. Well who doesn't! Since the beginning of time man has had the yearning
to go fast, from the first wheel to super sonic jets of today. Well windsurfing
falls somewhere in between these extremes of the speed spectrum when its
done right. The current world speed record for sailing on a windsurfer
is 45.34 knots (84.01 kph/52.21 mph) set in San Marie de la Mar, France
by Thierry Bielak on April, 14, 1993. This may not sound very fast when
your typical cars top speed can be between 100-150 mph, but when its just
you, your board and your rig ripping across the water at 52 mph it feels
like you are going 200 mph. It is much more of an intimate experience
with the elements than when you are strapped into a hulking giant of a
rocket.
There are two sides
to the speed equation, displacing and planing. In the displacing situation
your increased wetted surface area will increase your speed. That is why
course boards of higher volume and longer length will be faster in sub-planing
or displacing conditions. On the flip side when you are in planing conditions
the less you have in the water the better, henceforth you want to decrease
your wetted surface area as much as you can. Of the two conditions it
is probably apparent that planing conditions are faster than displacing
conditions by virtue of less drag. The tips in this article are intended
for when you are planing. They, however, may help you get planing as well
as go fast.
With the science of
it out of the way you are probably wondering, "Well, how do I go fast?"
Well I'll tell ya! Here are ten tips which I read about and have put to
practice with outstanding results. I have gained about 20% in speed and
want to pass them on to you so that you too can enjoy the need for speed.
- Keep your board
flat by pointing your toes.
Many people keep a lot of their weight on their heels
when they are learning. This may, however, keep you going up wind
it doesn't help your speed because when the board is railed that increases
your drag, therefore, slowing you down. A flat board is a fast board.
So point your toes, keep the board flat, and sail upwind by sailing
off the fin like a dagger board, not your rail.
- Press against
your fin laterally.
Once you are planing, start pressing with your rear
foot laterally against your fin. This pressure produces lift and increases
your speed. It is a lot like when you are water skiing outside of
the wake and you catch up with the boat by pressing against the flow
of the water causing you to be projected forward. The same applies
to windsurfing, so press hard and you'll go much faster.
- Hang farther from
the rig by straightening your arms and rolling your shoulders.
By doing this you reduce the amount of weight on the
board, committing more weight to the rig and this reduces the drag
on the board. You might even want to roll your boom to your finger
tips to get that extra extension you need.
- Keep your hands
about shoulder width apart.
This relates to point #3 because this allows you to
get more extended from the rig and you become more sensitive to the
load on the rig. If you have a super wide grip you will be dogging
it and going slow.
- Sheet in using
your body, not your arms.
Rather than just pulling in your sail with your back
arm, let the sail hold you up by lying out over the water. Don't sit
out over the water, lie back. This also gets your weight away from
the board.
- Don't pull the
rig too far to windward.
Once you have gotten more confident in getting your
weight out over the water there is a tendency to over do it and the
rig starts to lean to windward. This has the effect of choking off
your power. You want to keep the rig vertical as much as you can.
You can accomplish this by extending your hips toward the sail by
bending your knees.
- Shorten your harness
lines.
If your lines are too long you end up sitting down
and not lying back into your harness. When you sit you start re-applying
that weight you lost by getting into the harness to the board again.
By lying back the wind takes the load of your butt. You should be
on your tippy toes to get into your harness not bending your knees.
So shorten them up and go faster.
- Sail quietly.
A quiet sailor is a fast sailor. Basically stop adjusting
your weight, sheeting angle, and direction every ten seconds. Once
your heading in the direction you want to go, get into a stance and
lock it in keeping your upper body stiff. Let your knees absorb the
bounce in the board.
- Close the gap.
When closing the gap you will notice the biggest change
in your speed next to getting your weight off the board and into the
harness. You get the aerodynamic benefit of "end-plating". This tip
goes with tip #5, when using your body to sheet in you will also be
able to rake the rig back to close the gap the foot of the sail makes
with your board. This has the effect of producing incredible lift
in your board.
- Lift up in your
foot straps.
This is very important once you are in the straps
and is the ultimate in getting your weight off the board. If you can
lift the front of the board, there is almost no weight on the board
so therefore you are going fast. While you are leaning out in the
harness, and in the straps, lift upward with your front foot and your
board will feel like it is getting unglued from the water and you
should be cranking.
Well there you have
it. Just about everything you ever wanted to know about going fast but
were afraid to ask. Going fast is not as simple as it might sound just
by reading these tips. Notice, though, that every tip relates in some
way to the basic idea of getting your weight off the board. You have to
be really conscious of the conditions and make changes in your stance
and setup to reflect these changes. Of course having the right equipment
rigged for the conditions wouldn't hurt either. So, get out there and
practice these tips, lose that excess baggage on your board and I guarantee
that you will be smoking your buddies at the beach the next time on the
water.
Marc A. Lefebvre (lefebvre@iwavesolutions.com)
Copyright
© 1995-2004 by Marc A. Lefebvre. All rights reserved.
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