I like to live with a lil danger... I also prefer adopting a
positive view towards everything. After dropping out of
engineering school to pursue my degree in Business I
have continued to be racked by engineering mindstorms
and a belief that if there's a will... By Golly, there must
be a way...
I am fwding graphic to interested parties only.
See attached rough sketch.
I believe, with a crossbeam, the mast support post could be
removed. As an after-market option, I would be happy with
just relocating it next to dgrbrd well and installing crossbeam.
To my mind it would be easier to make the crossbeam, knee
and braces molded into cabin while in mold at factory. This
would provide necessary stiffening. Using aluminum for
crossbeam and glassing to cabin roof, sides while in mold
would really make it lighter, not rotting and much, much
stronger. Hmm... Coefficients of expansion check needed.
As to cost,
* 12' x 3" x 3/8" solid aluminum beam would run about
$25 at wholesale providing enough material to make knees
and braces.
* The whole piece could be heliarc welded avoiding
bolts for about $100.00 labor
* glassing to cabin while at factory would probably
require about 1 hour of labor and at most 2 quarts of
resin, about another 100 bucks.
I believe the whole thing could be made an option on
newer vessels and would add about $250.00 to production
costs. The option could be sold for about $4 - 500.00.
Once you start producing/mfg. in quantity you could
have a machine/welding shop deliver heliarced crossbeam/
braces/knees for less than $110.00 delivered/each. (you
could probably get them made in Mexico and save $$)
Glassing it in during lay-up could be accomplished at
factory for about another $125.00, or less, a piece.
A potential profit of $400 - 235 = $165
IMHO:
With temp removal of dgrbrd raise/lower cables this
modification would show a clean view of fwd bunk
and provide easy non contortionist access to it.
Once you show boat without CMP to a customer
he will appreciate extra space and ability to walk to fwd
berth without having to go through a million contortions.
It could even make sex less painful aboard {;^). Ah...
The Potter sex machine... Sorry! couldn't help myself...
This is just an initial idea... Maybe there is an easier
more economical way... Let's see what comes out...
Best
SF
See IM reply and different responses/viewpoints below.
<><><><><><><><><><><><><><><>
In a message dated 1/29/99 3:13:50 PM Eastern Standard Time, uffda@sonic.net
writes:
<< Subj: Re: P19 Cabin mounted mast support/compression post
Date: 1/29/99 3:13:50 PM Eastern Standard Time
From: uffda@sonic.net (The Costs)
To: wwpotter@tscnet.com (potter mail list)
SF (and all)
I've looked at this and decided it could be done, but would take a bit of
engineering.
First. The mast is a bit forward of the aft ends of the bunks so we would
have to have a "V" shaped brace made for inside the cabin top. I don't know
how big it would have to be to take care of the torque problem.
Second. The bottom of the vertical braces would have to rest on a
crossmember that would transfer the load back to the (fiberglass) keel as
the flat parts of the bottom of the hull are too flexible (thin) to carry
the load. This actually would not be a problem if you also made it part of
a brace for the front of the retractable-keel trunk.
With the 'single' center post gone, the only thing that would be in the way
would be the keel cable.
If you (or someone else) come up with the spec's for this I would be
interested in a copy.
LCL
<><><><><><><><><><><><><><><>
Subj: Re: P19 Cabin mounted mast support/compression post
Date: 1/31/99 1:38:09 AM Eastern Standard Time
From: freelanc@execpc.com (theodore f. boyer)
To: SolarFry@aol.com
CC: lhart904@ix.netcom.com, wwpotter@tscnet.com
Don't remove that compression post, if you knew anything about engineering &
design, you wouldn't even write or contemplate such a deed as that.
Ted - milwaukee
<><><><><><><><><><><><><><><><><>
>From International Marine's Scott Johnson...
Solar Fry,
We have thought about this idea before. We do not have any
specification or designs for this modification, and currently at this
time we are trying to keep up with the demand for spring delivery
boats. If you do this modification, we would be interested in seeing
how it works out for you.
Regards,
Scott Johnson
International Marine
<><><><><><><><><><><><><><><><>
Original Query:
>Is there a way to move P19 cabin mounted mast-support/compression post
(CMP)
>against daggerboard well? How about outboard towards fwd edges of bunk or
>completely removing it? Any help you could provide in this direction would
be
>appreciated by all of us that would like to have some "fun" in that fwd
>bunk... Give it a shot... Try to access that fwd bunk with post in place
and
>without post in place, you will notice big difference... Astounding! Yeah!
>Solar Fry
>>