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On January 30,
Westlake Yacht Club welcomed local sailing enthusiasts to its
Mid-Winter Seminar. Attendees included Club members and
not-yet-members, beginners and experienced sailors, young sailors and
some who fondly remember being young once. Sailing guru Lyle Schyler
explained sailing's "rules of the road" and shared some of
his secrets to winning races. After the chalk talk, Lyle lead the
group out onto the lake to try out their newly-learned skills.
Sailing rules
specify which boat has the right of way in any particular
circumstance. By adhering to these rules, sailors minimize the risk
of collisions and ensure a fair contest. Sailing's equivalent of the
DMV Handbook is U.S. Sailing's The Rules of Racing of Sailing.
As Lyle explained,
rule #1 is that boats on a starboard tack have the right of way over
boats on port tack. So if you're at a regatta and you hear sailors
yelling "STARBOARD!!!!", they're not cheering for the
leader, they're forcefully asserting their right of way. (A boat is
on starboard tack when the wind is coming from its starboard side -
the right side as you face the bow). After "starboard",
Lyle's students learned a whole vocabulary of mostly appropriate yells.
Lyle's was a
multi-media presentation, complete a laptop with Power Point, a white
board, three model boats named Homer, Bart, and Krusty, a blow drier
and a ping pong ball. The highlight (to a physicist) was Lyle's
demonstration of the Bernoulli principle. With the blow drier pointed
straight up, Lyle suspended the ping pong ball in midair in the air
stream. "That's not a great surprise" he said, "but
watch this". He then turned the blow drier so that the air
stream was tilted from the vertical. The ball remained suspended in
midair. "Why doesn't the ball fall now?" Lyle continued,
"because the air is flowing faster over the top of the ball,
lowering the pressure there, and creating LIFT!" Lyle then
explained how this same effect allows airplanes to fly and sailboats
to go upwind.
By then, class
work was over and everyone eagerly headed for the dock, rigged their
boats, and put Bernoulli to work. Lyle may have forgotten to explain
"jibe", as one student got an intimate introduction to the
lake. Oh well, that's what hot showers are for. Thanks to Patrick
Shaw for helping to right a capsized boat.
If you missed this
seminar, there'll be another on May 1st, so keep checking your Conejo
Valley Life.
-- Robert
Piccioni, Rear Commodore |
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