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From: <JCMARTIN43_at_aol.com>
subject: Re: [Paddlewise] Cockpit Covers
Date: Tue, 1 Dec 1998 06:49:32 EST
Following the departing cockpit cover thread, try the Palm neoprene cockpit
cover.  A little pricier than others, but it's tight, solid and crosswind
proof.  (Also not that easy to get the bloody thing on, but when it's on, it
stays on!)  Also stays tight as a drum, and keeps virutally all the water out
of a boat in heavy rains. 

Caution note: in very heavy or sustained rains, you can pick up enough
rainwater in a cockpit to collapse your rack --- not to get back on that
subject! --- and even your roof.  Only saw it happen once, but two large
cockpit sea kayaks on top of (I think it was a) Toyota Corolla managed to
buckle the roof columns.  With lesser amounts of water, you can develop
hydraulic rams which, when the car stops quickly, can blow out your forward
bulkhead --- or, in non-bulkheaded boats, the bow!

So cockpit covers are not just for fuel economy or to keep the critters out.

Jack Martin
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From: <rdiaz_at_ix.netcom.com>
subject: Re: [Paddlewise] Cockpit Covers
Date: Tue, 01 Dec 1998 09:03:25 -0800
JCMARTIN43_at_aol.com wrote:

> Caution note: in very heavy or sustained rains, you can pick up enough
> rainwater in a cockpit to collapse your rack --- not to get back on that
> subject! --- and even your roof.  Only saw it happen once, but two large
> cockpit sea kayaks on top of (I think it was a) Toyota Corolla managed to
> buckle the roof columns.  With lesser amounts of water, you can develop
> hydraulic rams which, when the car stops quickly, can blow out your forward
> bulkhead --- or, in non-bulkheaded boats, the bow!

Amen, on the amount of water.  I once left on my roofrack a double
Klepper without its spray cover.  It was on the car overnight during a
torrential rainstorm.  When I went out the next morning, the car which
was on an inclined driveway alongside a friend's house was down on its
back springs as if I were carrying a load of concrete.  I tried climbing
up to pump water but it was taking too much time.  Luckily the guy we
were staying with was built like Burl Ives and just took the boat off
the roof, water and all, spilling a lot of the water out as he did.  No
damage to the car, rack or boat but I have heard of Klepper breaking
frame parts when a swamped one is hauled on to a large motor boat.

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: Alex Ferguson <a.ferguson_at_chem.canterbury.ac.nz>
subject: Re: [Paddlewise] Cockpit Covers
Date: Wed, 02 Dec 1998 09:04:21 +0000
> Caution note: in very heavy or sustained rains, you can pick up enough
> rainwater in a cockpit to collapse your rack

I've heard that fallacy too. Over enough days maybe but 
taking 6" of rain over night on a single, that's about 2" of 
water in the cockpit. Remember the opening is a lot smaller 
than the floor area of a standard (not folding) kayak. 

I would expect to be able to sit in my cockpit in my kayak on 
the roof without the kayak, the rack or the car suffering. If not 
something is built a bit light. Two more kayaks (3 all 
together on the rack) would just about equal my weight. I've 
carried 3 kayaks and a friend is trying to figure getting 5 on 
her rack for along trip. Does that put a couple of gallons of 
water into perspective?

If the rain gets much heavier over night you'll be wanting to 
be in the kayak because of the flooding and you'll be able to 
paddle round the car. Seal-launch off the rack :-)

> cockpit sea kayaks on top of (I think it was a) Toyota Corolla managed to
> buckle the roof columns.

Rust? Prone to that. Plus very large cockpits?

>  With lesser amounts of water, you can develop
> hydraulic rams which, when the car stops quickly, can blow out your forward
> bulkhead --- or, in non-bulkheaded boats, the bow!

>From one NZ manufacturer (so he said), they get two sumo 
wrestlers, one at each end and tip the kayak back and forth. 
If the bulkheads survive that model is accepted for import to 
Japan - his were.

Alex
--
----------------------------------------------------
Alex Ferguson      a.ferguson_at_chem.canterbury.ac.nz
Electronics Workshop, Chem Dept, Univ of Canterbury
Christchurch, New Zealand
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