I wonder if the keels are different depending on the year? Or maybe IM just
likes to exaggerate--20 minutes to launch....a 370# keel... You'd think they
would know. What I want to know is how to prevent it from rusting. I noticed
Judy put anti-fouling paint on it. Does this work? Doesn't it add drag? How
about some wax? Has anyone else done anything to protect their keel?
Karen Johnson
Miss Maggie, P-19 #1010
Grafton, OH
Ken Preston wrote:
> Hi. Ordinary Steel and most steel alloys weigh really close to 30 pounds
> per square foot for 3/4" plate (easier to remember as 10 pounds per square
> foot for 1/4" plate. . .which is accurate to a a few thousandths. . .)so if
> it were dead flat, no fairing and no added metal it would come in at 210
> pounds. If it were 7/8" plate it would be 245.
> Ken Preston. . .who's never even seen a P-19 keel!
>
> -----Original Message-----
> From: Mac Davis [mailto:mcmd@innet.com]
> Sent: Thursday, May 11, 2000 1:36 PM
> To: Potter Email List
> Subject: [WWP] Re: P19 keel weight (was Have the "keel" galvanized?)
>
> Hi Judy:
> Your reference to a 390# keel tripped a trigger. We had this discussion a
> couple of years ago, and the concensus was that there was no way the
> standard P19 sheet steel keel (48 x 21 x 3/4 before milling) could meet its
> advertised weight. Since Kelpie's keel is removed at the moment, I hauled
> my trusty Sunbeam bathroom scale down to the garage and used it to weigh the
> keel. My keel weighs 255 pounds (± 3 as I moved it around on the scale.)
> Since this scale has been verified accurate at 202 lbs by a doctor's beam
> balance, I am confident that it was an accurate test.
>
> Mac Davis
> Kelpie, WWP19#804
> Aripeka, FL
>
> <snip> What I did with my 390#
> > "lifting keel" on the P19 -- get the boatyard to drop it and let two of
> > their guys put it on a saw horse for me. I cleaned up the nicks, smoothed
> > the bottom where I ground it up on the "ramp" and re-epoxied. Then I put
> a
> > coat of Micron CSC anti-fouling on it. I let the strong guys put it back
> in
> > the boat for me and installed a new steel cable while I was at it.
> <snip>
>
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