RE: [Paddlewise] skeg ups

From: Robert Woodard <woodardr_at_tidalwave.net>
Date: Mon, 18 Oct 1999 22:00:37 -0400
Dave K wrote:

> Any airfoil which moves through any fluid, be it air or water,
> will generate
> "lift" if it has a positive angle of attack (ignoring stalling,
> to simplify
> things).

Ok, I understand that part, but how does a skeg get applied at a positive
angle? Doesn't it run in line with the keel (and direction of travel)? I can
understand the rudder producing lift, as it can be turned to a positive
direction (left or right). But, a skeg I just can't seem to get through my
head as a lift producing device.

Lateral resistance, yes. Heck, I've even observed the kayak doesn't "rock
side-to-side" as much with the skeg deployed (uh oh hope this doesn't start
something new).

Are we talking about in a turn with the skeg deployed? That moment when the
kayak is turned but the kayak still has a little momentum in the original
direction? Or maybe it's just beyond my understanding. I think I'll just
shut up and listen. Someone may explain it one day where it all clicks for
me.

I've been sitting here thinking about this for a few minutes: Is the lift
created because in the wind, your real direction is slightly different the
where your bow is pointed? Aha! This could be the positive angle? The more
skeg exposed, this would generate more lift. AND this would explain why my
skeg setting at rest or slow speed is not the same needed at higher speeds
(more speed, more lift?).

Just wondering,

Woody



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Received on Mon Oct 18 1999 - 19:02:11 PDT

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