[ham] Re: [Rhodes22-list] Mayday on the Hudson and other ironies

[Roger Pihlaja]

Dear High & Dry,

Michael's advice about needing to completely dry out the boat ASAP before
starting repairs is well taken.  However, you mentioned filling in some
1-1/2 gal void space in the keel with concrete.  Please give that plan a lot
more thought before you actually do it.  You will improve the boat's
righting moment & give the ability to carry a little more sail area in
stronger winds.  However, adding that much concrete to the aft part of the
keel will affect the fore/aft trim of the boat, causing it to sink down by
the stern.  Think about how much wetted surface area there is in the hull
under the cockpit.  If you change the angle of attack on that much wetted
surface area by even a couple of degrees, you will add an incredible amount
of drag & permanently slow the boat down in light air, heavy air, motoring -
all the time.  The effect will be most noticable in light air.  Your fuel
mileage while motoring will drop.  You will also use up some fraction of the
boat's reserve bouyancy in the stern, which will decrease your boat's
ability to carry passengers.

Roger Pihlaja
S/V Dynamic Equilibrium


----- Original Message -----
From: "Michael Meltzer" <mjm at michaelmeltzer.com>
To: "The Rhodes 22 mail list" <rhodes22-list at rhodes22.org>
Sent: Saturday, July 26, 2003 1:26 AM
Subject: Re: [ham] Re: [Rhodes22-list] Mayday on the Hudson and other
ironies


> standard thickness should be about 3/4-1 inch in that area, OTHO the 1973
outsource with build all over the place, 1/32 sound like a
> bad patch job with a single lay of glass, does it look like a patch came
apart? maybe after the PO fix a grounding or a drop?
>
> you are going to need the boat on real boat stands for a while, Find the
limit of the thin area, step zero might be to cut it out,
> fill the blast with a sand/epoxy mix, mat/glass over and flair, sand,
epoxy overcoat. sound like you are going to need the cb trunk
> opened. That might be the session, but you need to get the hull dried and
the work done before the temp go below 50 at night.
>
> Can you get a digital camera on it?, IIRC you are in the industry, can you
get it into a yard and do you want to?
>
> BTW, look under the cockpit and in the bow for the foam, some people have
reported it missing, most case PO pulling it thinking it
> was waterlogged.
>
> MJM
> ----- Original Message -----
> From: <FNuttersNY at aol.com>
> To: <rhodes22-list at rhodes22.org>
> Sent: Friday, July 25, 2003 11:31 PM
> Subject: [ham] Re: [Rhodes22-list] Mayday on the Hudson and other ironies
>
>
> > Well folks we had a hell of a day, so far the best sailing day on the
> > river,estuary, what ever.  Sailing along in the middle of the river we
came about and
> > suddenly went no where.  We heard banging in way of the centerboard and
> > though it had come loose but it still felt like it was raising and
lowering ok.
> > But the banging did not stop so we pulled in sails and motered for home
about 5
> > miles away.  We stoped at the foot of  the Newburg/Beacon bridge to
watch the
> > tide action so we could time our eta suddenly water started to enter the
boat.
> >  With both pumps  and both engines running we high tailed it for home.
(Back
> > to the old  2stk 4stk lots of hp not much hp and all that) we made it in
35
> > min. By that time we had ankle deep water in the  cabin but since we
talked
> > about how great she floats (unsinkable and all that) I was not woried.
When we
> > tide up at the dock it realy started to come in and we had to put in a
1/2hp
> > sump pump to get a head of it,  Luckely   it was high tide and we got
her on the
> > trailer.  To everyones astonishment  a hole  the width of the keel an 3
> > inches long helped empty the boat.  It is the very aft section of the
keel starting
> > at about one inch from where it fairs into the hull and the 3 inches
down
> > along the vertical edge of the keel just behind the centerboard trunk.
How it
> > got there  no one knows it's in the damndest spot. One thing bugs me
however the
> > fiberglass in that  area is very thin not mor then a 1/32.  The void
space is
> > not very big maybe 11/2 gallons worth.  I'm tempted to fill it with
concrete.
> >  Now repairs and improvements.  Advice wellcome  comentary aswell.
Yours
> > trully   High and Dry.
> > __________________________________________________
> > Use Rhodes22-list at rhodes22.org, Help? www.rhodes22.org/list
> >
>
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>
>