Re: [Paddlewise] Cockpit Modifications

From: John Winters <735769_at_ican.net>
Date: Thu, 29 Jan 1998 07:01:07 -0500
The plaster method is the one that many boat builders use and probably why
their seats fit some people really well and others so poorly. One of the
problems with the foam method suggested is that the foam gets bloody hot
and you can get some rather severe burns to delicate parts if you sit down
on it while it is curing. Also it doesn't really foam uniformly. I
recommend you stay away from the foam. When I did the plaster method, I
wore a tight fitting swim suit and smeared it with Vaseline. It worked
nicely but you have to be somewhat careful not to put all your weight on it
while it is curing because  your butt will flatten out a bit in you will
get too much contact around your ischeal tuberosities (Spelling?). The way
the experts do it is to build a seat with thousands of  pressure sensors.
They measure the pressure all over the seat and then adjust the seat to
reduce local pressures that might cause discomfort.

Two years ago I worked on a racing canoe for paraplegics. These guys really
know about seats.  

If you are interested in the world's most comfortable seat, hie yourself
down to one of those stores that specializes in devices for the
handicapped. They may have one of the air filled gismos that is used by
wheel chair athletes (looks like a bunch of black peanuts on end stuck to a
pad) Talk about heaven! They are expensive. There are foam alternatives
made by some small companies that are close to being as good but less
expensive. They mix and match different foam densities to get the proper
support for all your parts. (Your butt is a complicated thing when you hear
the experts talk about it). 


Cheers
John Winters
Redwing Designs
Specialists in Human Powered Watercraft
http://home.ican.net/~735769/



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Received on Thu Jan 29 1998 - 05:59:54 PST

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