January / February 2005 Update
The big news this time is that the engine and both fuel tanks are installed. These milestones were reached some months ago, but as usual, I'm just slow to update the pages, and the work itself has gone slower still.
Before we get to the specifics
on Puffin, you regular and faithful fans know this website has
become a sort of boat-talk blog, so let's get that stuff out of
the way. One
distraction from
building Puffin has been a new acquisition, a Columbia 5.5 Meter
boat, Hagar, US 6. This boat was offered for free on the
WoodenBoat Forum by a guy who "had too many boats",
if you can imagine that! I talked my friend Mort (partner in the
ill-fated TOAD adventure) into stepping up for it with
me. We made the long trek from Arizona out to Mobile Bay, Alabama
in early January with Mort's Dodge dually one-ton pickup and my
heavy duty flatbed trailer, which has doubled as a boat hauler
several times before. The relocation was uneventful and successful
and the boat is currently resting under my boat hoist (picture
above) awaiting years worth of 'deferred maintenance' and
repairs, altho basically sound, and with new sails, deck gear,
etc. The 5.5 is an International Meter class, still active; the
boat measures 32'-5" with a beam of 6'-3". Strictly
for racing or daysailing. We plan to fix it up and stick it down
in Mexico for the International Regattas held twice a year in
San Carlos.
While we're talking free boats,
the yellow object under the silver tarp (on the small trailer)
is a unique boat, a prototype Patrick Ellam design that has never
been launched. Pat is a noted sailor, boat designer and author,
one of the old British crowd, perhaps best known for his voyage
in, and subsequent book on same called Sopranino. This
boat is an 18-foot one-person high performance planing craft;
as Pat expressed it to me, the concept is a hybrid combining the
stand-up sailing of a sailboard (but with a trapeze and harness)
and a regular sloop-rigged sailboat--get up on plane, out on the
wire, and go like hell.
He conceded
it would be 'athletic sailing'. The hull is vaguely similar to
a Sunfish in proportions but deeper, with a tiny footwell. The
boat was designed and built back in 1987, and has been waiting
all this time for someone to come along and finish the minor details
needed for launching. Pat is getting on in years, and just wanted
to find a good home for the boat. Unfortunately, when I got it
home I discovered that the 'sealed and watertight' hull had been
holding some rain water for many years, and there was extensive
rot in the plywood deck and hull in one area. None of this was
visible except as some peeling paint and minor delamination of
the deck ply until I poked a finger right thru the hull and very
foul water came out. I believe it can be repaired without too
much fuss and bother, but it's now joined the long list of others
crying for help from eight to thirty-three feet. I'll update on
these other projects as time goes on--it's all boats!
Another distraction from boat building was the rude intrusion of some 'billable work' into my schedule. Hey, we gotta pay the bills and support the habit somehow! In case I haven't mentioned it previously, I make custom furniture and other odd wooden items of interest (to me anyway) like carved signs. I've been working on a small webpage to cover that aspect of my life, but so far, it's waaaayyyy in the background. Or possibly buried under seven or eight project boats.
On to Puff! In re-reading my last installment, I see I hadn't even painted the hull yet. That is done, three coats of a satin finish 100% acrylic latex house paint above the waterline, a light buff color. No waterline or bootstripe yet. The cabin structure is painted with gloss enamel, in a similar almond or buff color. The sheer strake, rub and toe rails are painted dark green acrylic semi-gloss. The decks remain unfinished of their final coat of epoxy or paint, or both probably. A very good cleaning, some sanding, then a coat of googe rolled on, then paint is 'all' that's needed.
As anticipated, fitting the two fuel tanks was quite a job. Well, the first one took many days, the second only a few hours, once all the figgerin' was done for the first. The first step in the installation was to research and gather all the info I could on 'proper' installation. The manufactureer was little help, other than to confirm what my own investigation turned up, that the primary killer of aluminum tanks is corrosion, and that is brought on by water, under or around the tank, or on top. The tanks need to be installed so that water doesn't sit or collect under them. Since according to the manufacturer the tanks must sit on a shelf of some sort for support (like plywood), the trick is to get them raised up enough for some ventilation. I came across a website by a marine surveyor, and he had a nifty system detailed that involves gluing plastic strips to the tank bottom, effectively making slats for drainage and ventilation. The strips are about 2" wide and 1/4" thick, spaced a few inches apart on the bottom of the tank.
I had some stuff around, polyethelene
or similar, and experimented
with
various goops and glues to stick the plastic to some scrap aluminum.
There's not much under the sun that will reliably glue these Tupperware-type
plastics. One method mentioned is to 'flame' the plastic lightly
'just so' with a torch and use epoxy. In the end I settled on
belt sanding the plastic with 24 grit, cleaning both tanks and
strips very well, and using PL Premuim construction adhesive.
One tank with strips attached is shown (standing on end) at right.
As an aside, I found fiber-reinforced roofing cement, the thick
stuff (Henry's), stuck very well; but I was concerned about any
fuel spills (or heat) softening the stuff, and it's messy. The
tar stuck the plastic to the aluminum as well as the PL tho. I'm
sure the strips could be pried off the tanks with great effort,
but the tanks themselves are bolted down and there's no real movement
to loosen the strips. They are not glued to the plywood shelf
the tank sits on, to allow any minute movement due to tank expansion
and contraction.
The rest was just cut 'n' fit,
cut 'n' fit, in and out of the boat a gazillion times, first to
install some stringers to support the ply shelves, then the shelves,
then the tan
ks. To start at the beginning,
in the pic (left) we're looking at the area where the tank
will go. For reference, we're looking toward the starboard side,
under the cockpit sole. Aft is to the right, forward is left;
I'm standing on top of the engine area mid-cockpit. The bulkhead
being cut was to be the aft end of the built-in fuel tank when
I was contemplating that. In other words, the Makita recip saw
is 'inside' the proposed integral tank. The aluminum tanks are
longer than this space, so I had to cut the bulkhead away, leaving
enough to act as a cradle for the tank and support for the shelf.
Note the glossy gray bilge paint. The chine log is clearly visible
above the saw running left and right--this works out to be about
2" x 4" as we see it.
The shelves are 3/4" marine
ply, the same 13-ply BS 1088 Okoume
used
elsewhere in the boat. Of course they got at least three coats
of epoxy all over, with special attention to the edges. Ventilation
and drainage between the shelf and hull are provided for. The
shelves have a series of 1" holes (seen at right, looking
forward) drilled such that they are between the strips to
provide ventilation and drainage between the tank and shelf as
well. Each little hole's edges were sealed with epoxy--all very
fussy, but I don't ever want to have to tear any of this out due
to rot.
The cut-away bulkhead can be
seen mid-picture, now supporting the shelf, plus it provides lateral
support against tank movement. The white pipe on the upper right
is PVC conduit for wiring to the stern of the boat. The oval hole
in the portion of bulkhead below the pipe is for ventilation.
At the top of the pic, the 4" round hole in the main bulkhead
provides access from the cabin to tighten the two fasteners that
hold the forward end of the tank to the shelf. The cleat supporting
the forward end of the shelf to the main bulkhead is visible.
At the bottom of the pic, the aft two studs are visible and under
the aft studs is a hard-to-see shelf support epoxied to the shelf.
The studs are 1/4" stainless bolts epoxied in from the underside
of the shelf. The tank has two welded flanges for mounting, and
they drop over the four fixed studs, then washers and stainless
Nylocks complete the tie-down. At this point, the tank was ready
to drop in.
As I mentioned before, the tanks
barely fit in the available space. There's about 1/2" of
space between the tank top and cockpit sole. So the tanks themselves
fit, it's the plumbing fittings on the top that don't. The plumbing
required that I cut about a foot-square hole in the sole over
that area of the tanks, as the pic to the left shows (sole is
lifted to show tank). I'll build a box over each and it will serve
as a step and seat, probably even allow some storage.