("Jon Mees") writes:
|> I recently moved from a Bic Rumba to Vivace 282 with some more modern
|> sails. The problem I have now is not waterstarting or planing but
|> keeping my bum out of the water when at max speed!
|> At lower planing speeds my stance is fairly upright but as I accelerate
|> and push against the fin my body swings outboard and keeps catching in
|> the chop. (And some people pay money for salt water***s'!!)
If your bunz are forever dragging on the water, it sounds like:
your lines are too long (for your harness/body),
or your booms may be too low,
or your mast is too far back,
or your body position needs work.
The best way to fix your problem is to have a good sailor follow you
and tell you what you are doing. Otherwise here are some other tips
you might have overlooked...
Boom too low
Symptoms: Bunz drag on the water. Your body looks like a question mark;
bent over at the waist and bent knees. Can't get enough weight off your
arms and onto the harness line. Spin outs.
Cure: Raise the booms 1.5" (4cm). Try to sail with your shoulders back,
no bend at the waist (***in) and arms nearly straight. Try it!
Mast too far back
Symptoms: Too much weight on back foot; compensated by bending your
knees and moving your hips forward towards the board's nose. This can
create a stance that is awkward, low, and drags you bum in the water.
The power of the sail pulls you mostly across the board and you don't
feel it pulling you forward at all. (Plus: You can't get upwind. The
nose of the board rides too high above the water. Spin outs. Etc.)
Cure: Move the mast base forward 1.5". This should put more weight
on your front foot make the sail feel like it's pulling a bit more forward.
(Note: you may need to raise the slightly booms after moving the mast forward.)
If this feels good, try sailing off the wind and practice your body stance.
This is what feels right for me: Front leg slightly bent, back leg
bent more, and I'm*** back towards that tail slightly. My feel
are rolling the board so it's flat on the water (for speed or
climbing). My ***is pulled in and my shoulders are back. Most of
the sail's pull is on the harness line, my arms are nearly straigt and I'm
using my shoulder muscles to tune the sail. (Less tiring than using the
smaller arm muscles.) If I'm going slighly offwind, I'll really feel
like I'm being pulled right into the front strap. I can feel the sail
pulling forward as well as across the board, so I'll shift back slighly.
If I'm going upwind, I'll have a bit more weight on the back foot and
I'll have to shift my hips forward slightly.
Final notes, small changes of 1 to 1.5" make a big change in how you gear
will sail. Buying a black pen and a silver pen to mark how you assembled
you gear is a worthy investment.