Design
and Performance:
A
majority of our drift boats and duck boats are built with high
quality mahogany
plywood reinforced with fiberglass. Commonly called "stitch
and glue", or "taped seam" construction, this type
of construction employs the use of a wood-flour/epoxy fillet to join
the side and bottom panels. That joint is then reinforced both inside
and out with layers of biaxial fiberglass and epoxy. This joint eliminates
the need for a dimensional piece of wood at the chine and therefore
also eliminates any screws in the chine. This creates a completely
waterproof joint with no movement and no open cracks or seams which
can let in water and lead to damaged or rotted wood. It also makes
a much stronger joint than one with a wood chine log, such as a traditionaly
framed McKenzie style wooden drift boat. Multiple layers of fiberglass
on the exterior of the chine put maximum reinforcment where you need
it most.
The bottom panel of our custom boats is now made of a high-strength,
kevlar reinforced honeycomb which offers unsurpassed impact resistance
and is very light in weight. This honeycomb material is widely used
in aircraft and high end yachts for it's superior strength to weight
ratio. The extruded polypropolyne honeycomb panel has thousands of
airfilled chambers which mean that in the unlikely event of a hull
puncture (hasn't happened yet), any water that makes it through the
kevlar into the honeycomb can't travel through the panel but is confined
to the individual cell.
This honeycomb
is then further reinforced with multiple layers of Kevlar,
fiberglass and epoxy and finally the exterior of the bottom
panel is encapsulated in nearly ¼” of high density polyurethane
material just like a truck bed liner.
This material is not the rubbery
type but rather a hard plastic material which can withstand
impacts and abrasion much better than the soft gel coats of fiberglass boats.
It doesn't chip like gelcoats do, yet it slides easily over rocks.
Fot catastrophic rock hits, (actually the only ones we have seen have
been from metal) this material is repairable.
The interior floors of the boats are covered with a non-skid truck
bed liner material which is rubbery in nature, allowing great
non skid properties while still being gentle enough to walk on barefoot
and not so rough that flylines are damaged if stepped on.
The combination of these materials and the construction techniques
make for a no- maintenance bottom both inside and out and allow us
to offer a limited lifetime guarantee against bottom punctures.
The
side panels and decks of the boats are constructed from high quality
Okoume mahogany plywood. The Okoume that we use has been graded
and certified to at least British Standard 6566. That means that
each
piece of plywood has been run through a sonogram to check for voids
in the panel. This is the only true ‘marine’ grade
plywood available today. The outsides of the side panels are reinforced
with
fiberglass and epoxy ensuring a fully sealed, watertight
hull. This hull has many advantages over fiberglass, aluminum, or other
wood
boats. It is lighter weight, stiffer, stronger, and has a warmer
feel. All of the wood used in the boat, be it decking or
seat parts, is sealed with multiple layers of marine epoxy before the varnish
is applied.
This
helps to ensure the longevity of the boat by preventing water creeping
into seams,
etc. A boat that has not been sealed in this method
will quickly require a lot of maintenance much to the chagrin of the
proud owner. The varnish that is applied on top of the epoxied
wood was developed in Florida and offers the most UV protection of
any on
the market. The exterior paint is a two part, Teflon™ reinforced
paint that provides excellent scratch resistance.
We
are asked every day “How do they row?” In short, they
row like a dream. The hull designs are highly engineered to provide
optimum performance. The ideal drift boat should be a safe,
stable, and highly maneuverable craft able to handle fast, turbulent water
as well as provide a comfortable fishing platform. We offer different
hull shapes for various conditions. The Freestone Guide 15 has the
most rocker of our designs. Rocker is the amount of curvature in the
bottom of the hull. The more rocker there is, the more maneuverable
the boat. In addition to the rocker, the Guide has almost no straight
lines in the hull. This allows the boats to sit very comfortably in
turbulent hydraulics and not get pushed and pulled around like other
boats. The Freestone Skiff has the least amount of rocker of our boats.
This boat is designed for calmer, shallower rivers where a highly maneuverable
boat is not always required.
Because
every boat is customized for the individual buyer and not stamped
out of a mold, we are able to accommodate different hull characteristics
in each boat. Remember, these are truly custom built for each buyer
so you can mix and match different boat characteristics to suit your
needs.
If you
have any specific questions about our hull construction please email us at info@montanaboatbuilders.com