Re: [Paddlewise] Who Took Shaun White Sea Kayaking?

     This would be a natural place to implement a paired-T test.
We'll need about 100 randomly  selected sets of twins, and assign
one person from each pair to the wing paddle, and the other twin
to the competing paddle. When you get done, pass me the data and
I'll run it on my computer. Looking forward to this scientific
experiment.

BRC


Subject: Re: [Paddlewise] Who Took Shaun White Sea Kayaking?


> On Thu, Feb 18, 2010 at 7:32 AM, Doug Lloyd <douglloyd_at_shaw.ca> wrote:
>

> Speaking of wing paddles: Matt Broze has a wonderful way of grounding 
> things
> in logic. One of the things Matt triggered in me is a question of whether 
> a
> "wing" paddle actually works like a wing; with low and high pressures, 
> etc.
> Since water is, for all practical purposes, incompressible, the idea of 
> low
> and high pressure should only be considered in terms of depth. I have read
> accounts that a wing paddle will move a boat 3 or 4 inches farther for the
> same stroke than a "regular" paddle. But since the "wing stroke" is
> different than a normal forward stroke it's possible that it's the stroke
> that accounts for much of the difference and not the shape of the wing
> paddle at all..
>
> This struck a chord because I've noticed that since I have become 
> accustomed
> to the wing stroke (which, for those of you who may not know what it is, 
> is
> a high-angle stroke that starts close to the hull forward and sweeps out
> away from the hull in the final part of the stroke) I have noticed that if 
> I
> want to accelerate using the Lightning paddle (a Euro paddle without a 
> wing
> shape) I adopt a wing stroke automatically.
>
> Matt has suggested that I take the  Lightning paddle and use it in a wing
> stroke over a course and then take the wing paddle and cover the same 
> course
> and compare the results. Since I live on a lake where my workout paddles
> cover pretty much similar water day-over-day, this would be pretty easy to
> do. All I have to do is get into shape to cover the course (after a winter
> of mostly holding down a sofa).
>
> Our weather here in the summer is pretty dull which would remove one of 
> the
> variables. My plan is to make several paddles over several days keeping as
> much as possible identical except the paddles. The course, the time of
> start, the boat, the gear, etc. would all be the same. Only the paddles
> would change. I would have to keep the strokes as similar as possible in
> order to be able to quantify whether the wing is really faster under 
> similar
> conditions.
>
> I'm going to wait for decent weather in the 70s and for the lake to reach
> its summer pool elevation to do this. My wife can help with timing and
> support in the summer (she gets summers offI'll keep the list updated. It
> should be interesting.
>
>
> Craig Jungers
> Moses Lake, WA
> www.nwkayaking.net
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