[Public-List] Alberg shopping (was Hope Island RacingConference)
George Dinwiddie
gdinwiddie at alberg30.org
Tue Aug 12 21:10:11 PDT 2008
Rachel,
That's a pretty good synopsis. Close enough to give a good feel.
I'd just like to add that the chainplate attachments are a problem in
all the boats, and the bolts should be upgraded to 5/16" or doubled in
number (and don't use fully-threaded bolts). Sometimes the knees should
be given attention, too.
Also, while they should mostly be gone, watch out for Whitby's "home
made" 3/4" through-hulls. They were a two-piece design made from pipe
and washer--a very dangerous boat-sinker.
- George
Rachel wrote:
> Hi Peter,
>
> Sounds like you're pretty familiar with boats - Contessa... Mmmm! I
> guess maybe you'd like to stand up for a change though :D
>
> First of all, there are two "generations" of A-30s, in addition to a few
> "transitional" boats that were made between Generation I and Generation
> II boats.
>
> They're both the same boat, but there are a few differences. Here are a
> few highlights:
>
> Gen I --- Hull #1 - #380-ish?
> "Stick built" furniture - that is, the bulkheads, etc. are wood
> (laminate faced in the earliest boats) and are tabbed directly to the
> hull and deck. The sole is wooden and is built upon wooden floors, etc.
>
> The hull deck joint is comprised of an inward-turning flange on the hull
> capped off by a flat deck, and the works is resined and bolted together
> with the same bolts that hold the teak toerail on. I'd say they're
> spaced at about 3-1/2" to 4" apart. The toerail is something like a
> vertical 1" x 2" profile.
>
> The decks are double cored with Masonite (pegboard). That is, it's a
> fiberglass/Masonite/fiberglass/Masonite/fiberglass construction (from
> what I've read - haven't seen inside myself). The coring stops (mostly)
> short of where the stanchions etc. attach which has helped reduce the
> incidence of deck-core-saturation problems. Also the Masonite seems
> less prone to that than balsa (although I suppose it must be heavier
> what with all those resin filled holes). The decks drain directly
> overboard through cutouts in the toerails.
>
> Rudder is either wooden planks with drift pins (earliest), or solid
> fiberglass with brass reinforcing (middle). Not sure if there was a
> third evolution on the Gen I boats. No rudder stuffing box.
>
> Hardware seems to be mostly chromed bronze, with some stainless. The
> stem fitting is chromed bronze with a teak pad beneath it. The cockpit
> lockers and companionway and lazarette hatches are all wooden. The
> forehatch is wood-framed with a clear panel for the top. Large, fixed
> ports are aluminum. Smaller ports may or may not be opening (or a
> combination thereof, as opening were optional one-by-one). There's a
> deck hatch in the cockpit that leads to an "upright" icebox down below.
>
> Belowdecks, the overhead is faired and painted glass. There is a
> central aisleway, with a laminated wood beam that supports the mast, in
> conjunction with the plywood bulkheads. Water tank is integral
> fiberglass in the bow area under the v-berth.
>
> Original engines: Early Graymarine gas; later Atomic Four.
>
> Gen II Hull #40x-ish - to the end (#7xx?)
> Note that I have a Gen I boat, so if I get any of this wrong, please
> someone correct me.
> Gen II boats have an interior liner. The bulkheads slot into the
> liner. The sole is flat sections of ply that fit onto the molded sole
> liner. Furniture itself is still wood though.
>
> The hull deck joint incorporates a fiberglass bulwark, at the top of
> which the hull and deck overlap and are riveted together (along with
> sealant and (perhaps some bolts?). There is a teak cap on top of the
> bulwark (the whole thing is about as tall as the wooden toerail on the
> Gen I boats).
>
> The decks are cored with balsa. I think it may run all the way out to
> the edge, but I'm not sure. The deck drains inboard, through holes to
> scuppers.
>
> Rudder is foam-filled fiberglass, with internal reinforcement. There is
> a rudder stuffing box (?)
>
> Hardware I'm not sure on. Perhaps more aluminum? The stem fitting is
> all metal (type?) and incorporates chocks. Cockpit locker lids are a bit
> longer, and are molded fiberglass with decorative wooden inserts. They
> have deeper gutters than the Gen I lids. Forehatch is molded fiberglass
> (with an opaque/clear center?). Companionway hatch is wooden (?).
> Lazarette hatch is...? Large, fixed ports are aluminum. Smaller..??
>
> Belowdecks, the icebox is a flat "counter style." Over head is a molded
> fiberglass liner. The mast beam is metal and is somehow integrated into
> the overhead (?) Water tank under V-berth --- integral glass with an
> aluminum top??
>
> Original Engines: Early maybe Atomic Four and later... diesel?
>
> Transitional boats Hull #380-ish to #40x?
> - incorporate some of the features of both. New deck style, new
> cockpit locker lids, but no interior liner...
>
> Things to look for (besides the obvious common to all boats, all wood,
> all glass, etc.):
>
> Gen I specific:
> Leaks where toe-rail fastens through deck (through the fasteners - not
> the actual joint that I know of).
> Mast beam delamination (often repaired with aluminum sister plates or
> other methods).
> Forward chain plate bolts (were threaded all the way through instead of
> having shoulders). (Is this on Gen II also?)
>
> Gen II specific:
> Can anyone fill this in?
> Wetness in balsa cored decks.
>
> Other:
> The iron ballast does not seem to have caused too many problems. It's
> set in a kind of cement aggregate. It does bear checking, as the top of
> the ballast does not seem to have been well sealed from the factory
> (mostly resin with a thin layer of glass or mat), but again, people do
> not seem to have had many real problems with it (granted lead would have
> been nice).
>
> At least on Gen I there is a small, filled in "sump" area behind the
> ballast pig (i.e. from the heel fitting forward about two feet). This
> is not a structural issue, but maybe something to check as it has the
> potential to have been permeated by bilge water or oil, etc. At least
> on Gen I boats, it's filled in with the same cementitious material that
> the ballast was set in, along with a "spacer" of wood, and with an
> unreinforced resin pour over the top. So the bilge is one long
> continuous slope from front to back. It's definitely deep under the
> engine (ask me how I know).
>
> I hope this helps. I've certainly missed things. And I'm not as
> knowledgeable on the Gen II boats, although surely others will pipe in.
>
> Happy shopping!
>
> Rachel
> #221
>
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--
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When I remember bygone days George Dinwiddie
I think how evening follows morn; gdinwiddie at alberg30.org
So many I loved were not yet dead, http://www.Alberg30.org
So many I love were not yet born.
'The Middle' by Ogden Nash
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