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From: Seng, Dave <Dave_Seng_at_health.state.ak.us>
subject: RE: [Paddlewise] Paul Caffyn and rudders (long)
Date: Mon, 15 May 2000 08:08:14 -0800
> -----Original Message-----
> From: Dan Hagen [mailto:dan_at_hagen.net]

snip

> The only adjustable mechanism whose 
> robustness I trust
> is the sliding seat. I am surprised that more manufacturers do not
> incorporate sliding seats into their designs.
> 
  This sliding seat idea has always sounded interesting to me, but, never
having seen one, I have a little trouble picturing how they work in
conjunction with a spray skirt - or is the total travel distance fore/aft
small enough that the "normal" amount of slack in a "normal" skirt can
adjust to the different seat placements?

Dave Seng
Juneau, Alaska
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From: BaysideBob <vaughan_at_jps.net>
subject: [Paddlewise] sprayskirt/sliding seat
Date: Mon, 15 May 2000 19:39:29 -0700
The sprayskirt I got with my Express has enough play in it to slide all the
way back
for entry-exit and to bury the stern when paddling.  Sliding about 4-6"
forward is
balanced for normal paddling.

The only time I go further forward is to release the stern to turn into high
winds.
I can slide a few inches further forward and have run out of play in the
skirt.  It works
fine so far.

Matt told me they once had a spray skirt made with a great deal of play
but folks didn't like paddling with a puddle in the slack.  I'm still
considering having
one made with more play as I'm not fussy about a quart of water here or
there.  By the
time I'm ready to get it made, I'll probably decide I don't need it.

I suspect the boat would handle fine with the hung or foam seat that are
also available.
But I gotta tell you, sliding the seat all the way back makes getting in and
out soooooo
easy. I've noticed that every time I go out I find it necessary to get into
and out of the
boat at least once.

I can't testify, with my limited experience, that it helps me surf huge
waves, negotiate
treacherous rock gardens or complete lengthy crossings.  It does keep me
from looking
stooopid in front of the ol' geezers that inhabit the docks.

Bob




----- Original Message -----
From: "Seng, Dave" <Dave_Seng_at_health.state.ak.us>
To: "Paddlewise" <paddlewise_at_lists.intelenet.net>
Sent: Monday, May 15, 2000 9:08 AM
Subject: RE: [Paddlewise] Paul Caffyn and rudders (long)


> > -----Original Message-----
> > From: Dan Hagen [mailto:dan_at_hagen.net]
>
> snip
>
> > The only adjustable mechanism whose
> > robustness I trust
> > is the sliding seat. I am surprised that more manufacturers do not
> > incorporate sliding seats into their designs.
> >
>   This sliding seat idea has always sounded interesting to me, but, never
> having seen one, I have a little trouble picturing how they work in
> conjunction with a spray skirt - or is the total travel distance fore/aft
> small enough that the "normal" amount of slack in a "normal" skirt can
> adjust to the different seat placements?
>
> Dave Seng
> Juneau, Alaska



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From: Robert C. Cline <rccline_at_swbell.net>
subject: Re: [Paddlewise] sliding seats
Date: Sun, 04 Jun 2000 22:11:48 -0500
The sliding seat is a great idea.  I've paddled one of Matt's boats with the
sliding seat.  The problem is, sand and grit is ever present to stop all the
sliding. 

Robert

> From: "Seng, Dave" <Dave_Seng_at_health.state.ak.us>
> Date: Mon, 15 May 2000 08:08:14 -0800
> To: Paddlewise <paddlewise_at_lists.intelenet.net>
> Subject: RE: [Paddlewise] Paul Caffyn and rudders (long)
> 
>> 
> This sliding seat idea has always sounded interesting to me, but, never
> having seen one, I have a little trouble picturing how they work in
> conjunction with a spray skirt - or is the total travel distance fore/aft
> small enough that the "normal" amount of slack in a "normal" skirt can
> adjust to the different seat placements?
> 
> Dave Seng

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From: BaysideBob <vaughan_at_jps.net>
subject: Re: [Paddlewise] sliding seats
Date: Mon, 5 Jun 2000 19:27:59 -0700
I haven't found that to be a problem with my Express.
The mechanism is pretty simple and California sand
doesn't seem to interfere with it.  Operation may be
the problem.  Taking little hops and scoots
to bump the seat for and aft works for me.

Unloading the weight on the seat is the key.

Bob

----- Original Message -----
From: "Robert C. Cline" <rccline_at_swbell.net>
To: <PaddleWise_at_lists.intelenet.net>
Cc: "Seng, Dave" <Dave_Seng_at_health.state.ak.us>
Sent: Sunday, June 04, 2000 8:11 PM
Subject: Re: [Paddlewise] sliding seats


> The sliding seat is a great idea.  I've paddled one of Matt's boats with
the
> sliding seat.  The problem is, sand and grit is ever present to stop all
the
> sliding.
>
> Robert



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From: Robert C. Cline <rccline_at_swbell.net>
subject: Re: [Paddlewise] sliding seats
Date: Tue, 06 Jun 2000 08:51:17 -0500
Bob:


That must have been it.  I can only remember sitting in the seat trying to
scoot it forward to no avail... taking scoots as one would on a seal
launch...

"Operator error."

Thanks for clearing this up.

Robert

> From: BaysideBob <vaughan_at_jps.net>

> 
> 
> I haven't found that to be a problem with my Express.
> The mechanism is pretty simple and California sand
> doesn't seem to interfere with it.  Operation may be
> the problem.  Taking little hops and scoots
> to bump the seat for and aft works for me.
> 
> Unloading the weight on the seat is the key.
> 
> Bob

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From: Pete Cresswell <">
subject: [Paddlewise] "Training Wheels" on ultra-narrow surf ski?
Date: Sun, 18 Jun 2000 09:08:13 -0400
Given that:

- A 17"-wide hull is faster than one that's 20"

- 20" is reasonable to balance,  17" is quite difficult, perhaps at the limit of
what's possible


Why not have a hull that's only, say 15" wide at the water line, but flares
sufficiently around the cockpit to provide a sponson effect if/when leaned?

That way, if/when the paddler could balance they'd be able to go faster, but
when they were off balance the secondary stability would keep them upright.


Clearly this doesn't work because if it did racing skis would be using it by
now.

But why doesn't it work?
-----------------------
Pete Cresswell
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From: John Winters <735769_at_ican.net>
subject: Re: [Paddlewise] "Training Wheels" on ultra-narrow surf ski?
Date: Mon, 19 Jun 2000 06:32:38 -0400
Peter wrote:

>
> Why not have a hull that's only, say 15" wide at the water line, but
flares
> sufficiently around the cockpit to provide a sponson effect if/when
leaned?
>
> That way, if/when the paddler could balance they'd be able to go faster,
but
> when they were off balance the secondary stability would keep them
upright.
>
>
> Clearly this doesn't work because if it did racing skis would be using it
by
> now.

If your butt isn't 15" wide then it gets rather hard to sit in the boat as
low as you need for stability. The size of a paddler's butt limits the beam
of sprint kayaks which, incidentally flare out to the maximum beam regulated
by the rules.

Cheers,

John Winters
Redwing Designs
Web site address http://home.ican.net/~735769.



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From: Kirk Olsen <kolsen_at_imagelan.com>
subject: Re: [Paddlewise] "Training Wheels" on ultra-narrow surf ski?
Date: Mon, 19 Jun 2000 10:26:19 -0400 (EDT)
On Sun, 18 Jun 2000, (Pete Cresswell) wrote:

> - 20" is reasonable to balance,  17" is quite difficult, perhaps at the limit of
> what's possible

I don't know about that.  I normally paddle a 17" beam surf ski and was 
fairly comfortable on a 15" beam 13.5" waterline surf ski (a Mako) a 
couple of weeks ago.  Comfortable enough to be considering the Mako as
my next boat.  I'm comfortable enough on my current surf ski to be able
to sit in it, with my feet in the footwells, without a having a paddle for 
bracing.

> Why not have a hull that's only, say 15" wide at the water line, but flares
> sufficiently around the cockpit to provide a sponson effect if/when leaned?

Have you tried the Current Design speedster?  That boat is tippy when upright
and pretty stable, when you lay it on it's side.  I can lean it enough
to get a knee wet, with my feet in the footwells, without needing to brace.

kirk
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From: Matt Broze <mkayaks_at_oz.net>
subject: Re: [Paddlewise] sliding seats
Date: Tue, 6 Jun 2000 03:48:25 -0700
Robert C. Cline wrote:

>>The sliding seat is a great idea.  I've paddled one of Matt's boats with
the
sliding seat.  The problem is, sand and grit is ever present to stop all the
sliding. <<

Robert, please let me know how the sand and grit stopped the sliding seat
you were using. I suspect you hadn't learned how to slide it yet during your
tryout. I have been paddling sliding seat kayaks for more years than I'd
like to admit. Sometimes when playing in the surf a steep shore break can
dump lots of sand and grit in the cockpit once I've popped my spraydeck to
exit but in all these years I have never not been able to slide the seat
because of sand or grit even once. I have also never had anyone else tell me
it has happened to them either until just now. Could you please elaborate,
in my experience sand kind of acts like a bunch of ball bearings to make the
seat slide easier. Which model and whose kayak did you try? Usually I hear
this claim of sand jamming the seat from potential customers who heard it
from a competitor who has never tried it and is just speculating (or who is
throwing out a red herring).
The seat tracks are self cleaning. I challenge anyone to find any natural
grit from sand to gravel size that will stop an experienced user from being
able to slide the seat when they want to (if it is not piled so deep in the
cockpit so as to stop the seat from sliding due to the deep sand or gravel's
weight alone).

Matt Broze
http://www.marinerkayaks.com

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From: Robert C. Cline <rccline_at_swbell.net>
subject: Re: [Paddlewise] sliding seats
Date: Tue, 06 Jun 2000 08:35:11 -0500
Matt:  The sliding seat is an excellent innovation.  What a great way to
change the balance of the boat as you need to.

I believe it was a Mariner II.  You might even know the boat, it was the one
George Gronseth uses.  I used this boat in his Highwinds training course in
the Colubia River Gorge, and again in his Deception Pass tidal currents
training.

I was scooting and struggling with it and only managed to get the seat to
shift slightly.  I was also paddling a Capella in that course and since I
wasn't spending all day with it, gave up on it.  I looked down at the slide
wondering why it was all jammed up, but abandoned the thought of working
with it since there was much else to be doing... like keeping up with the
class.

That's the sum of my experience.  George obviously hadn't a problem with it,
or he would have either called you or fixed it himeslf.  Your presumption of
operator error could indeed be correct.

Robert    

> From: Matt Broze <mkayaks_at_oz.net>
> Organization: Mariner Kayaks
> Date: Tue, 06 Jun 2000 03:48:25 -0700
> To: Paddlewise <PaddleWise_at_lists.intelenet.net>
> Subject: Re: [Paddlewise] sliding seats
> 
> Robert, please let me know how the sand and grit stopped the sliding seat
> you were using. I suspect you hadn't learned how to slide it yet during your
> tryout. I have been paddling sliding seat kayaks for more years than I'd
> like to admit. Sometimes when playing in the surf a steep shore break can
> dump lots of sand and grit in the cockpit once I've popped my spraydeck to
> exit but in all these years I have never not been able to slide the seat
> because of sand or grit even once. I have also never had anyone else tell me
> it has happened to them either until just now.

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From: Matt Broze <mkayaks_at_oz.net>
subject: RE: [Paddlewise] sliding seats
Date: Tue, 6 Jun 2000 20:19:40 -0700
George has modified the seat in his Mariner II to suit himself (and his very
out of the ordinary behind) to such an extent that it really isn't the same
seat anymore. I tried to call him to see if he hasn't also blocked it in
place on purpose, as I suspect he has, but I only got his voice-mail. I'll
try to get back to you with what he tells me later. I would assume that if
it was still free to slide that he would have told you how to move it to the
trim position at least. I suspect that it is easier for him to just block it
in at the trim position and not have to teach one customer in a whole group
how to work their particular seat. He cut the backrest down so far that
getting into it already in the trim position should not be at all difficult.
The sliding seat usually requires some instruction so the paddler
understands just what to do to get it to move. It sometimes takes a minute
or two to teach someone how to get it to move at all the first time. Since
you were given no instruction at all on how to move it it would be quite
understandable that even if it wasn't blocked you might not figure it out on
your own. It is a little like the Eskimo roll in that you have to coordinate
several movements and push in the right way on the pedals or the seat to get
it to move. Someone who has learned the tricks and practiced a little can
jump it over a foot in one motion but most first tries get nowhere. After a
little instruction most folks can hop it an inch or two with each "jump".

Matt Broze
http://www.marinerkayaks.com



> -----Original Message-----
> From: Robert C. Cline [mailto:rccline_at_swbell.net]
> Sent: Tuesday, June 06, 2000 6:35 AM
> To: PaddleWise_at_lists.intelenet.net
> Subject: Re: [Paddlewise] sliding seats
>
>
> Matt:  The sliding seat is an excellent innovation.  What a great way to
> change the balance of the boat as you need to.
>
> I believe it was a Mariner II.  You might even know the boat, it
> was the one
> George Gronseth uses.  I used this boat in his Highwinds training
> course in
> the Colubia River Gorge, and again in his Deception Pass tidal currents
> training.
>
> I was scooting and struggling with it and only managed to get the seat to
> shift slightly.  I was also paddling a Capella in that course and since I
> wasn't spending all day with it, gave up on it.  I looked down at
> the slide
> wondering why it was all jammed up, but abandoned the thought of working
> with it since there was much else to be doing... like keeping up with the
> class.
>
> That's the sum of my experience.  George obviously hadn't a
> problem with it,
> or he would have either called you or fixed it himeslf.  Your
> presumption of
> operator error could indeed be correct.
>
> Robert
>
> > From: Matt Broze <mkayaks_at_oz.net>
> > Organization: Mariner Kayaks
> > Date: Tue, 06 Jun 2000 03:48:25 -0700
> > To: Paddlewise <PaddleWise_at_lists.intelenet.net>
> > Subject: Re: [Paddlewise] sliding seats
> >
> > Robert, please let me know how the sand and grit stopped the
> sliding seat
> > you were using. I suspect you hadn't learned how to slide it
> yet during your
> > tryout. I have been paddling sliding seat kayaks for more years than I'd
> > like to admit. Sometimes when playing in the surf a steep shore
> break can
> > dump lots of sand and grit in the cockpit once I've popped my
> spraydeck to
> > exit but in all these years I have never not been able to slide the seat
> > because of sand or grit even once. I have also never had anyone
> else tell me
> > it has happened to them either until just now.
>

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From: ralph diaz <rdiaz_at_ix.netcom.com>
subject: Re: [Paddlewise] sliding seats
Date: Wed, 07 Jun 2000 07:58:35 -0700
Matt Broze wrote:
> 
> George has modified the seat in his Mariner II to suit himself (and his very
> out of the ordinary behind) to such an extent that it really isn't the same
> seat anymore. I tried to call him to see if he hasn't also blocked it in
> place on purpose, as I suspect he has, but I only got his voice-mail. I'll
> try to get back to you with what he tells me later. I would assume that if
> it was still free to slide that he would have told you how to move it to the
> trim position at least. I suspect that it is easier for him to just block it
> in at the trim position and not have to teach one customer in a whole group
> how to work their particular seat. He cut the backrest down so far that
> getting into it already in the trim position should not be at all difficult.
> The sliding seat usually requires some instruction so the paddler
> understands just what to do to get it to move. It sometimes takes a minute
> or two to teach someone how to get it to move at all the first time. Since
> you were given no instruction at all on how to move it it would be quite
> understandable that even if it wasn't blocked you might not figure it out on
> your own. It is a little like the Eskimo roll in that you have to coordinate
> several movements and push in the right way on the pedals or the seat to get
> it to move. Someone who has learned the tricks and practiced a little can
> jump it over a foot in one motion but most first tries get nowhere. After a
> little instruction most folks can hop it an inch or two with each "jump".
> 
> Matt Broze
> http://www.marinerkayaks.com
> 

And I thought folding kayaks were the only boats that needed complex
instructions and a knack to set up!  :-)

ralph diaz
-- 
-----------------------------------------------------------------------
Ralph Diaz . . . Folding Kayaker newsletter
PO Box 0754, New York, NY 10024
Tel: 212-724-5069; E-mail: rdiaz_at_ix.netcom.com
"Where's your sea kayak?"----"It's in the bag."
-----------------------------------------------------------------------
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From: Pete Cresswell <">
subject: Re: [Paddlewise] sliding seats
Date: Wed, 07 Jun 2000 20:02:43 -0400
RE/
>He cut the backrest down so far that
>getting into it already in the trim position should not be at all difficult.

When I had my Mariner Express, I sawed off the top of the backrest so it would
slide under the cockpit coaming.

Two reasons:

1) I felt like I was flirting with a minor back injury if/when I had to lean way
back with it up so high.

2) I have extremely long legs and those couple of extra inches of backward
movement allowed me to do a cowboy mount if/when I wanted.

I'd routinely slide the seat quite far forward when paddling a following swell
and I never, ever had any trouble sliding it back - with sand in the boat or
otherwise......Only problem I ever had on capsizing was staying *in* the boat...

I found the ability to shift the center of gravity to be invaluable.
-----------------------
Pete Cresswell

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From: Pete Cresswell <">
subject: [Paddlewise] USLA Specs?
Date: Tue, 06 Jun 2000 19:43:52 -0400
Dunno what USLA stands for...(US Lifeguard Association???)...

But anyhow, this is supposedly the magic word for the specifications governing
what's legal in lifeguard surf ski racing.

Anybody know where to download a document?
-----------------------
Pete Cresswell

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From: <JCMARTIN43_at_aol.com>
subject: Re: [Paddlewise] USLA Specs?
Date: Tue, 6 Jun 2000 21:31:50 EDT
Pete wrote, "Dunno what USLA stands for...(US Lifeguard Association???)...

But anyhow, this is supposedly the magic word for the specifications
governingwhat's legal in lifeguard surf ski racing.

Anybody know where to download a document?"

It's the Unites States Lifesaving Association, and they publish a Manual of Open Water Lifesaving, edited by B. Chris Brewster, published by BRADY/Prentice Hall (ISBN 0-8359-4919-2).  Not sure what you're looking for, but they don't have a lot to say about surfskis.  A little more about kayaks.

There's an interesting lifeguard website run by Gerry Dworkin of Lifesaving Resources in New Hampshire --- http://www.lifesaving.com/wwwboard/wwwboard.html --- that you could look at and check out for info on surf ski racing.  The people on that listserve (including Brewster, himself) were very helpful to me in getting information on suitable rescue devices for swim support work by sea kayak.  You can get to Brewster that way, too.  (If you want any more from his Manual, come back channel and I'll see if I can help you out.  I bought the book, but definitely don't want to compromise copyright rules --- these guys and gals were very helpful.)

Jack Martin

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