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From: bill hansen <bhansen2_at_twcny.rr.com>
subject: Re: [Paddlewise] Greenland vs Euro paddles
Date: Sat, 04 Sep 2004 08:23:07 -0400
John Fereira's and Kirk Olsen's notes and links on the Greenland paddle are 
right on target, IMO. The link to Chuck Holst's site provides an excellent 
reference on building one's own Greenland "stick", a very enjoyable 
activity which is well within the capabilities of even a rank amateur 
non-carpenter like me, who uses almost only hand tools.

I'm very far from being an expert in either style of paddling, but I have 
paddled Euro for a few decades now. About three years ago I switched to a 
Greenland paddle partly for the same reason others have mentioned - 
shoulder arthritis and decaying wrist joints.

My experience is that the Greenland stick *is* easier on my joints and 
muscles - it has less "bite" on initial catch, as others have said. There's 
a big difference in the way my joints feel during and (especially) after a 
paddling session. The Greenland is *much* easier on my shoulder and wrists. 
But the surface area of the blade is not significantly different from that 
of many Euro paddles. The difference is in the "aspect ratio" of the blade 
- longer and thinner on the Greenland blade, which provides for a more 
gradual entry and "catch". But once the blade is in the water - all the 
blade - the surface areas of the Greenland and the Euro are essentially 
identical and you can generate as much power as you want, every time. The 
dihedral shape of the Greenland is another joint-sparing property, and it's 
also an aid when bracing, rolling, or sculling. At least that seems to have 
been my experience. At age 70 and using a Greenland, I can still keep up 
with my younger paddling buddies. Of course they can blow my doors in if 
they want to sprint, but that's because they're younger and much 
stronger.They can blow my doors in with either their Euros or their 
Greenlands. The difference is not the paddle, but their younger bodies and 
their superior conditioning.

A Greenland wouldn't be the paddle of choice for Wildwater racing and 
similar sprint racing events. Also, I would probably not use it as my 
paddle of choice for surfing, though it would work adequately. Aside from 
those activities, the Greenland will get you there every bit as fast as a 
Euro. As for deep high bracing, deep sculling, and so forth - the Greenland 
works just as well. When in doubt, extend the on-water side of the paddle a 
couple of inches (surprisingly little!) and you will probably find that the 
Greenland gives you at least as much support as the Euro.

Every stroke which can be done with a Euro can be done with a Greenland - 
and for those who have the time and athleticism to learn them, there are 
quite a few rolling techniques which are done with the Greenland but not 
with a Euro.

More than one person who was a little doubtful about rolling with a 
Greenland has been a bit amazed at how powerful the standard C-to-C, 
screw,  and layback rolls are with a Greenland, even without extending the 
grip on the paddle.

Bill Hansen
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From: Steve Brown <steve_at_brown-web.net>
subject: RE: [Paddlewise] Greenland vs Euro paddles
Date: Sat, 4 Sep 2004 06:39:59 -0700
I paddled with a Greenland paddle for a while and experienced all the
benefits to joints, tendons, etc, that you and all the others have
described. My cruising speeds did not seem at all diminished. All my
ailments went away and when I returned to the Euro paddle they returned. I
always paddle un-feathered so none of this was due to dealing with feather
angles.

Nevertheless, I do not agree with your assessment that once buried, the
Greenland has the bite of a Euro. Paddles operate similarly to wings. High
aspect ratio wings have high lift-to-drag ratios, which is why they are seen
on high performance aircraft. Low aspect ratio wings have more lift in when
stalled so the transition from flying to stalled is less abrupt. This is why
they are seen on trainer aircraft and aircraft that must operate off short
fields.

Effective Greenland strokes all seem to revolve around "flying" the blade,
even the forward stroke. When it comes to "stalled" strokes such as braces
(non-sculled) and raw standing start acceleration, the Euro (lower aspect
ratio) has the advantage.

It's not just about surface area.

That makes sense from a theoretical standpoint (everything I know about
wings is in this email, so please don't probe any deeper!), but is also my
personal observation. Accelerating out through the surf or out from behind a
reef was much more trying with a Greenland paddle.

Still, I'm thinking of returning to a Greenland paddle for sea kayak
cruising to preserve all my body parts so they are ready for abuse when
surfing and rock gardening - with a euro paddle.

One recent revelation for me (though I'm sure I was the last to figure it
out) is the dramatic difference between different "euro" paddles when it
comes to inflicting pain on the body. I have been paddling exclusively with
203CM WW paddles for all my paddling for the past couple of years. They have
short fat blades and stiff large diameter shafts. The pain factor has
definitely increased, but I thought it was just due to getting older. 
In the past few weeks I decided to try a longer (220CM) touring paddle with
longer narrower (relatively) blades for touring. I wanted to see if I could
increase my speed for covering distance. The difference was dramatic. I
could feel the shaft flexing like it was made from rubber. I got used to
this very quickly, I think my speed did increase a little, but most
important benefit was that pain was dramatically reduced both while paddling
and the next day. 

By the way, why are they called "euro" paddles? Some of the pictures of
native North Pacific paddles look a lot like "euro" paddles to me. Seems
like they come from the American continent and should therefore be called
"American" paddles.

Steve Brown
 

-----Original Message-----
............. The difference is in the "aspect ratio" of the blade 
- longer and thinner on the Greenland blade, which provides for a more 
gradual entry and "catch". But once the blade is in the water - all the 
blade - the surface areas of the Greenland and the Euro are essentially 
identical and you can generate as much power as you want, every time. ....

Every stroke which can be done with a Euro can be done with a Greenland
..........

Bill Hansen
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From: John March <jsmarch_at_acpub.duke.edu>
subject: RE: [Paddlewise] Greenland vs Euro paddles
Date: Sat, 04 Sep 2004 10:05:21 -0400
   At 09:39 AM 9/4/2004, Steve Brown wrote:
>One recent revelation for me (though I'm sure I was the last to figure it
>out) is the dramatic difference between different "euro" paddles when it
>comes to inflicting pain on the body.



>Steve's observation makes a lot of sense to me. One reason I've stayed 
>with an AT Xception is that it is much easier on the body than the Lendal 
>crankshaft paddle or even the Werner Kalliste and, God forbit, something 
>like the Tooksok.  I also tend to use a lot of extended paddle 
>strokes/braces with the AT and find that in this regard some similiarities 
>with my friends who paddle GP.  On the other hand, it does seem like the 
>GPers have more trouble with catching waves when surfing and perhaps with 
>some elements of bracing.  Do wish I could do all those fancy rolls though 
><grin>.


*********************************************************
John S. March, MD, MPH
Professor and Chief, Child and Adolescent Psychiatry
Program for Child Affective & Anxiety Disorders
Duke University Child and Family Study Center
718 Rutherford Street, Room 132
DUMC 3527
Durham, NC 27710
919/416-2404 (P); 919/416-2420 (F)
Email: jsmarch_at_acpub.duke.edu
Website: http://www2.mc.duke.edu/pcaad
CAPTN:  www.captn.org
TADS:    https://trialweb.dcri.duke.edu/tads/index.html

*********************************************************
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From: Michael Daly <mikedaly_at_magma.ca>
subject: RE: [Paddlewise] Greenland vs Euro paddles
Date: Sat, 04 Sep 2004 13:22:30 -0400
On 4 Sep 2004 at 6:39, Steve Brown wrote:

> By the way, why are they called "euro" paddles? Some of the pictures
> of native North Pacific paddles look a lot like "euro" paddles to me.
> Seems like they come from the American continent and should therefore
> be called "American" paddles.

"Euro" is obviously an arbitrary coinage that has nothing to do with 
origins or development.

Mike
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From: Nick Schade <nick_at_guillemot-kayaks.com>
subject: Re: [Paddlewise] Greenland vs Euro paddles
Date: Mon, 6 Sep 2004 14:08:49 -0400
On Sep 4, 2004, at 9:39 AM, Steve Brown wrote:
> Nevertheless, I do not agree with your assessment that once buried, the
> Greenland has the bite of a Euro. Paddles operate similarly to wings. 
> High
> aspect ratio wings have high lift-to-drag ratios, which is why they 
> are seen
> on high performance aircraft. Low aspect ratio wings have more lift in 
> when
> stalled so the transition from flying to stalled is less abrupt. This 
> is why
> they are seen on trainer aircraft and aircraft that must operate off 
> short
> fields.

I frequently here people talk about paddles working like wings and am 
prepared to accept that it is possible. Yet whenever I ask people to 
describe how the paddle is working like a wing, their explanations fall 
flat.

People like to talk about how Greenland paddles are similar to glider 
wings etc. But, they never seem to be able to explain how the motion of 
a forward-stroking Greenland paddle is similar to that of a glider wing 
through the air.

There is a very specific way a wing generates lift. If it does not move 
this way, it is not producing propulsion with lift. If you want forward 
propulsive thrust the paddle must move perpendicular to the direction 
of desired thrust and perpendicular to the axis of the "wing". So a 
paddle held more-or-less vertically must move more-or-less sideways, 
either away from or towards the boat. If it is not doesn't do this, it 
doesn't produce propulsion with lift and comparing it to a wing doesn't 
make sense.

The clearest descriptions I have read for the Greenland stroke do not 
indicate they move through the water in a manner that would produce 
lift. I have tried hard to make sure I am understanding the 
descriptions and I've asked detailed questions. The more I asked the 
less convinced I was that Greenland paddles use lift to produce 
propulsion in a forward stroke.
Nick Schade

Guillemot Kayaks
824 Thompson St
Glastonbury, CT 06033
USA
Ph/Fx: (860) 659-8847
http://www.guillemot-kayaks.com/
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