The International Moth is an eleven foot long, high performance, single handed
racing dinghy. It is proud to be one of the few development classes left
in the world and have very few design rules including no weight limit.
The class encourages innovation just as much as it encourages sailing skill.
It welcomes home boat building and wacky designs, and almost importantly,
it welcomes unconventional
people with open arms. This offical Australian Moth web site has all the
latest National information that you need to start Mothing right now.
Being a development class, the moth has evolved from a hull in the 1930’s
that could best be described as a heavy, narrow scow or a blunt nosed skiff,
(weighing about 50 kg) to today’s remarkable foilers with hull weights
of under 10 kg,. Designs have run the gamut from wide skiffs without wings,
to lightweight scows, to wedge-shaped hulls characterized with narrow waterlines
and hiking wings out to the maximum permitted beam. Likewise, the sail
plan has evolved from cotton sails on wooden spars, through the fully battened
Dacron sails on aluminum spars stage, to the windsurfer inspired sleeved
sails on carbon masts seen today.
Today's 11 foot single-handed Moths foil in 6 knots and kiss 30 in heavy
air. The current design earns its international name—it is the fusion
of the American Moth Boat, Australian Inverlock, Swiss-inspired hiking wings,
and a hydrofoil from the UK.
The Ratchamatic® ratchet disengages under light loads to allow fingertip
control. Ratchamatics and T2s™ have strong ball bearings on curved
races to make secondary bearings unnecessary—which means adjustments
are lightning fast under any load. Many racers add an additional block for
a 4:1 system to reduce sheet load.
Due to strong apparent wind caused by the speed of foiling, flattening the
sail with the downhaul makes the boat faster and easier to control. 6:1
double-ended downhauls are common, but racers like Bora Gulari, '09 World
Champ and Moth speed recordholder, have used Harken 16 mm blocks to create
even higher purchases.
Vang tension is critical in generating the power to lift off. The 16:1 double-ended
system also allows for "vang sheeting" upwind to control shape
Moth Sailboat Parts and Equipment
We at Layline strive to be your source for Moth Sailboat Parts and Equipment and all sailboat hardware, rigging, and sailing gear. With our focus on one design and handicap racing we can offer advice and reviews of what you need to compete. If you need any assistance selecting the appropriate Moth Sailboat Parts and Equipment
please contact us. Our crew is ready to help!