[Rhodes22-list] Reinforce Cockpit seats

[Robert Dilk]

Thanks  Roger for the fix.
I have the same issue with the seats on  my 1974/75 Rhodes 22.
I will use your fix.

Bob
S/V Knot Necessary

>>> cen09402@centurytel.net 04/09/03 09:47AM >>>
Bob,

When I first got my 1976 R-22, I didn't care for the way the cockpit seats
"creaked" when walked or sat upon.  So, I reinforced my cockpit seats with
1" OD stainless steel tubing from below.  I have two support columns per
side for a total of four in all.  These support columns were mostly
assembled from off-the-shelf stainless steel railing hardware.  The enclosed
link will show you a picture of one of these support columns:

http://www.rhodes22.org/rhodes/pics/Propane-1.jpg 

The only custom made components were the oddly shaped spacers between the
top of the support columns and the underside of the cockpit seats.  One of
these spacers is visible in the above photo.  These pieces were designed to
take the irregularity out of the upper bearing surfaces on the underside of
the cockpit seats & provide nice flat areas for the support columns to rest
upon.  At the time, I happened to have several scrap pieces of black, UV
stabilized, UHMWPE polymer, which I used for these spacers.  However, these
spacers are out of the weather and are not in direct sunlight.  So, there is
no reason why they couldn't be fabricated out of wood.  If you make them
from wood; then, I would either paint them or seal them with epoxy.  Please
note that all four support columns will be slightly different & will have to
be custom cut to length for that specific position.  Likewise, the spacers
will have to be custom made for each position.

One critical construction detail not visible in the photo is the use of 1"
OD stainless steel fender washers inside the stanchion mounts, top and
bottom.  These fender washers spread the compression loads on the top spacer
and the cockpit sole such that the ends of the 1" OD tubing do not gouge
into either when heavily loaded.  Thus, the 1" OD stainless steel tubing
must be cut to a precise length = (the vertical distance between the cockpit
sole and the top spacer) - (the thickness of two fender washers) in that
specific position.  Although there are setscrews in the stanchion mounts,
they are not involved in supporting the compression loads.  The stanchion
mounts merely locate the ends of the support columns top & bottom and
prevent lateral movement.

This fix has been absolutely bulletproof since 1987, including several hard
falls against the cockpit seats by big people.

Good luck!

Roger Pihlaja
S/V Dynamic Equilibrium

----- Original Message -----
From: "Bob Weber" <ruba1811@hotmail.com>
To: <rhodes22-list@rhodes22.org>
Sent: Tuesday, April 08, 2003 5:54 PM
Subject: [Rhodes22-list] Reinforce Cockpit seats


> Hi all, I had one of the boards securing the underside of the cockpit
seats
> deteriorate and break on me this year.  Everyone is familiar with the
boards
> running along the front edge of the cockpit seats (the ones that hold =
the
> filler boards)  There is marine ply wood strips that secure the other =
side
> of the seat.  I will be replacing these this weekend.  It seems to be a
> staight forward job but if anyone has done this before and encountered
> problems or has a better solution,  please chime in.  The seats were
making
> a peculiar sound when stepped on prior to noticing the broken board.
Thanks
> in advance.
>
> Bob Weber
>
>
>
>
>
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