Did you ever leave a polyester One Metre
radio control yacht in the sun?
Did it soften, buckle or warp? At Blowfly Yachts & Sails we
believe that these kind of materials are simply not hardy enough for
an outdoor application such as an IOM, or any other radio control yachts
- especially so in sunnier climates like
Australia. Polyester is also much heavier and because it also lacks
stiffness it therefore requires extra re-enforcement - meaning even more weight
right where you don't want it.
so different about a Blowfly International One Metre Radio Control
A Lot! Built using
SP Systems' new Tooling and
Infusion Technology, Blowfly radio controlled yachts
won't go soft and warp like so many of
our competitor's sailboats. Blowfly's RC yachts are impervious to severe
temperatures and will hold their shape even with the most excessive rigging
tensions. Give one of our hulls the squeeze test and you'll see what we mean.
The bow area on all Blowfly radio control yachts is re-enforced to withstand
the hardest of knocks without cracking or springing leaks. SP' Systems' Epoxy
Infusion Moulding reduces hull imperfections usually found with traditional
moulding techniques and because the hand finishing requirement is
largely eliminated, greater quality control in manufacture can be
obtained. With this Infusion moulding process a minimum of epoxy resin is used
providing an even and ultra-lightweight construction of maximum
strength. Blowfly International One Metre remote controlled
yachts are so strong
they do not require any usage of bulkheads in their construction and as
such are a complete monocoque hull!
Using a displacement mono-hull design based
around the current Americas Cup design thinking, Blowfly
International One Metre radio control sailboats are designed to perform well
in all conditions, from the softest of breezes to heavy "C Rig"
conditions. Just like any seriously competitive full size yacht, our
hull shape was designed and tank tested to produce the neatest "exit" of
water from the stern whilst underway at a variety of speeds. Our super
clean hull shape delivers a beautifully smooth bow wave in tune with the
boat's length and maximum hull velocity, reducing drag through the water and at higher speeds.
In gusty conditions this harmonious bow wave can even be "surfed" through to
the next lifting pressure!
From the very beginning, designing a
great all-round IOM radio control boat in a displacement hull shape that could keep a
virtually even hull wetted surface area through and past 30
degrees of heel whilst keeping an optimal amount of rocker to ensure
manoeuvrability was our primary design objective. After much
mathematical experimentation and 3D modelling, our graceful hull shape
was arrived at with some final finishing touches to the design added by
a leading Australian full size racing yacht designer.
All this hard
work has paid off, as Blowfly Yachts And Sails have produced an
IOM hull design that is incredibly stiff
, stable and can carry an "A Rig" in higher range winds than other
IOM radio controlled
boats before the "round up" tendency begins. Because the the
Blowfly IOM hull produces negligible
extra drag at higher rates of heel beating upwind when overpowered, good height can still be maintained
when other IOM sailboats would need to shorten sail. Tacking when
overpowered is still possible and bearing away, even when extremely
over powered, does not produce the crash gybes, wild broaches and nose dives
like so many other radio control yachts. Blowfly's IOM radio
controlled yachts are so stable, you can run downwind with an A Rig in
15 knots and even if you do nosedive in a severe gust you will still be
easily able to keep the boat straight and on course, even with the bow
deep underwater and most of the rudder out! Don't believe us? Come and
look for yourself or have a go sometime! It is amazing to watch!
Blowfly IOM radio control yachts utilize an 11.1mm super
stiff "groovy" aluminium mast and employ an innovative yet simple
approach to mast design. Blowfly One Meter radio control yachts
also use a second
set of lower stays to control not only forward and aft mast bend but
also to prevent lateral mast movement. This method provides straighter and stiffer
mast that can better hold its shape even under higher wind pressures. With
this lower stayed design, more tweaking and control over mast shape is
achievable and extra redundancy is offered in the case of a broken
outer side stay. In the event of a collision where a breakage
occurs, the Blowfly IOM's extra lower side stays will keep the mast up
for you to limp home - normally if this happens you are out of luck! Most other
International One Metre radio control yachts offer mast rams as method
of controlling mast tune, however mast rams
only allow for control over fore and aft mast bend and movement. Mast
rams offer nothing in terms of additional mast stiffness, lateral
stability or bonus redundancy, this is why we think that lower stays are the better bet.
A stiffer mast combined with a stiffer boat aids forestay tension, which
is where extra height gains can be made. Its all about the whole R/C
Blowfly Sails are developed by
qualified and experienced sail makers
using the most exotic materials permissible under class rules including the
newest of Cuben Fibre variants even incorporating
carbon fibre battens
in their Grand Prix model
to maintain a perfectly stable leech shape without adding weight up
Our latest innovation is the availability of sails to be attached to the
mast via a bolt rope (see right) to evenly distribute sail loads over the entire
mast and to form the most aerodynamic coupling to the mast possible. In
this scenario, the main sail becomes an integral part of the mast,
further increasing mast rigidity just like a full size racing yacht.
As an ongoing evolution, Blowfly Yachts And
Sails are continuously developing their keel bulb shapes on their "Grand
Prix" model so as to further improve lift whilst eliminating bulb drag or "vortexing". This
research has led us to some radical ideas that are too secret to show you here!
All our radio control yachts are beautifully finished in tough
baked automotive 2 pack enamel and are available in a myriad of colours. We can also
colours schemes and graphic designs or can even translate in miniature the colour
graphic design of your full size boat on to your new Blowfly One Metre
radio control yacht.
For any further technical queries,
please contact us
Systems' Epoxy Infusion flow
Even when heavily pressured, Blowfly's IOM
maintains great stability downwind and resists nose diving.
Additional lower stays stiffen and better
control mast bend.
Cuben Fibre Grand Prix sails can tidily attach via bolt rope into the mast groove
to improve efficiency, evenly distribute load and increase mast
stiffness. See our carbon fibre battens below.