[Public-list] Propane Locker

Mon Aug 16 11:40:24 PDT 2004

Thanks Gord,

Do you think I can assume, when the bathtub sound occurs, the air is being
ventilated (sucked) from the lazarette?

Roger

Roger L. Kingsland, AIA
Managing Partner
Kingsland Scott Bauer Associates (KSBA)
N40° 27' 49"  W79° 57' 59"
3441 Butler Street
Pittsburgh, PA 15201
www.ksba.com

1(412) 252-1500 X101 - Office & Voice Mail
1(412) 779-5101 - Mobile (no voice mail)
1(412) 252-1510 - Fax

----- Original Message ----- 
From: "Gordon Laco" <mainstay at csolve.net>
To: "Alberg 30 Public List -- open to all" <public-list at alberg30.org>
Sent: Monday, August 16, 2004 2:33 PM
Subject: Re: [Public-list] Propane Locker

> Hi there Roger -
>
> You can indeed improve the efficiency of the drains by putting aft facing
> half shells over the outlets...the only problem is they are quite noisy
when
> the boat is doing more than say 4.5 knots.  The sound is like that if a
> bathtub draining - and it goes on all the time.
>
> Gord 426
>
>
>
>
>
> > David,
> >
> > I was wondering if the shape of the air vents on either side of the
> > lazarette might actually promote suction that would ventilate (suck)
even if
> > the vent is under water.  I am reminded of the "L" shaped protrusions
(about
> > 3'' long parallel to the fuselage and sticking out about 1'1/2") on
small
> > planes that I believe are used to measure air speed.  It would seem with
a
> > small hole and water zooming  by (relative term) on all sides, the
> > efficiency could be better than those self bailing cockpit drains you
see on
> > Sunfish.  Unfortunately, short of setting up some hit and miss
experiments,
> > I don't know where to research this subject.  Any hints?
> >
> > Roger
> >
> > Roger L. Kingsland, AIA
> > Managing Partner
> > Kingsland Scott Bauer Associates (KSBA)
> > N40° 27' 49"  W79° 57' 59"
> > 3441 Butler Street
> > Pittsburgh, PA 15201
> > www.ksba.com
> >
> > 1(412) 252-1500 X101 - Office & Voice Mail
> > 1(412) 779-5101 - Mobile (no voice mail)
> > 1(412) 252-1510 - Fax
> >
> >
> > ----- Original Message -----
> > From: "David Fisher" <liquid_addiction at hotmail.com>
> > To: <public-list at alberg30.org>
> > Sent: Sunday, August 15, 2004 8:09 PM
> > Subject: Re: [Public-list] Propane Locker
> >
> >
> >> Jim, do you access your rudder stuffing box (assuming you have one on
your
> >> boat...) via the lazarette or through the cockpit lockers?  this is the
> > only
> >> concern that really springs to mind there.  As to the increased
waterline
> >> when healing and the wake pattern along the hull at speed, would this
not
> > be
> >> a problem only if the boat was sustaining these attitudes over a
sustained
> >> period, eg. on passage?  Even in this case, the behaviour of the boat
> > should
> >> allow the vents to drain with some regularity; in tacks or just through
> > her
> >> behavoiur in a sea.  If the boat stops at the end of the day, then the
> >> locker would drain freely then.  To me this seems sufficient.  Does
anyone
> >> have experience to the contrary?
> >>
> >> My idea originally had been to house the bottle in a drum secured in
the
> >> lazarette which drains via a hose to a through hull at the base of the
> >> transom.  The bottle manufacturers have conspired against me on this
one,
> >> indicating that it should be stored and used vertically.  It's
something I
> >> plan to look into further...  The idea of having smaller tanks and so
> > having
> >> a spare is attractive as it lessens the possibility of running out just
> > when
> >> the roast's gone in.
> >>
> >> Cheers,
> >>
> >> David, Kalitsah 440, Sydney.
> >>
> >>
> >>> From: "Jim Davis" <a30240 at earthlink.net>
> >>> Reply-To: Jim Davis <a30240 at earthlink.net>,Alberg 30 Public List -- 
open
> > to
> >>> all <public-list at alberg30.org>
> >>> To: "John Belt" <johnrbelt at worldnet.att.net>,"Alberg 30 Public List --
> > open
> >>> to all" <public-list at alberg30.org>
> >>> Subject: Re: [Public-list] Propane  Locker
> >>> Date: Fri, 13 Aug 2004 21:58:47 -0400
> >>>
> >>> John
> >>>
> >>> Thanks for the most concise answer.
> >>>
> >>> Roger
> >>> Also note water will sometimes come up the cockpit scuppers when
heeling.
> >>> For propane you want to be absolutely certain it does vent overboard
and
> >>> not
> >>> settle to the bilge.  Your insurance and the Coast Guard can get real
> > hyper
> >>> tense over this.  Of course if it does blow, you will be part of
someone
> >>> else's problem as your will probably cease quickly.
> >>>
> >>> Jim Davis
> >>> S/V Isa Lei
> >>> CT 35
> >>>
> >>>
> >>> If man does find the solution for world peace it will be the most
> >>> revolutionary reversal of his record we have ever known.
> >>> George C. Marshall
> >>>
> >>> ----- Original Message -----
> >>> From: "John Belt" <johnrbelt at worldnet.att.net>
> >>> To: "Alberg 30 Public List -- open to all" <public-list at alberg30.org>;
> > "Jim
> >>> Davis" <a30240 at earthlink.net>
> >>> Sent: Friday, August 13, 2004 16:29
> >>> Subject: Re: [Public-list] Propane Locker
> >>>
> >>>
> >>>> Has anyone noticed that when a displacement boat goes faster, it
> > squats
> >>> by
> >>>> the stern, submerging any holes in that area that were just a little
> >>> above
> >>>> the waterline when the boat is at rest? Specifically, the engine
> > exhaust
> >>> on
> >>>> my Alberg 30 was under water when the boat was moving at 6 knots,
> > power
> >>> or
> >>>> sail.  That is why the muffler and exhaust pipe had to be routed to
> > make
> >>> a
> >>>> loop as high as possible to keep water from entering the exhaust line
> >>> and
> >>>> the engine.
> >>>>
> >>>>
> >>>> This would make it pretty hard to put ventilating holes in the hull
> > for
> >>> a
> >>>> propane tank.
> >>>>
> >>>> From a former Alberg 30 owner
> >>>>
> >>>>
> >>>
> >>> _______________________________________________
> >>> Public-list mailing list
> >>> Public-list at alberg30.org
> >>> http://alberg30.org/mailman/listinfo/public-list
> >>
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> >
> >
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