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International Radio Sailing Association |
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International Radio Sailing Association |
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"IRSA is the worldwide radio sailing organization as an affiliated member of World Sailing. IRSA is dedicated to the enhancement of both current and emerging world radio sailing classes through the promotion and development of consistent class rules, measurement methods, radio yachting racing rules and advice in running major racing events."
The Technical Committee has the responsibility for the Regulations for IRSA Classes and their Class Rules
The Racing Committee has the responsibility for Racing Rules and Regulations for the management of races
IRSA acts as the ICA for M, 10R, and A. Class Committees, one per class, have the responsibilities for administering these classes.
Model boats can be found throughout history from Egypt to China. One of the oldest “model sailing ships” is a 4000 year old clay boat originally discovered in the old Mesopotamia region and now preserved at the Israel Museum in Jerusalem. (source; Wikipedia)
Vane controlled sailing started over a hundred years ago at the beginning of the 20th century. A gadget, called the “Vane”, is controlled by the wind and it in turn keeps the steering (rudder) and sails in their correct position to sail across a pond. It is similar to the idea of a “cruise control” in modern cars. This was a very popular way to race model yachts up until the advent of modern radio controls. Vane sailing is still popular in some places across the world.
From the 1960’s, radio control sailing became possible with the development of portable transmitters and receivers. This was a great leap forward for model yachts and the modern 2.4GHz radio control units have excellent range and reliability.
There are World, Continental, National, Regional and Club Championships going on all over the World. If you want to find out more or jump in and have some sailing fun, find a club near you and introduce yourself.
start as young as possible
become a world championRadio sailors enforce the rules themselves. Competitors not racing act as observers and hail contact between boats. Skippers are expected to take a penalty if they have broken a rule.
If they do not, experienced sailors will adjudicate after the race and decide if a boat should be disqualified.
IRSA acts as the class authority for the International Marblehead, International Ten Rater, and International "A" Classes and affiliates the International One Metre International Class Association as Class Authority for the International One Metre Class.
Open class, box class
Carbon hulls, foils and spars
Hull length 1.3 m
Displacement 4.5 to 5.5 kgs
Draught 660 mm
Sail area 0.5161 m²
Open class
Waterline length x Sail area = constant
Carbon hulls, foils and spars
Hull length 1.3 to 1.8 m
Displacement 5 to 7 kgs
Draught 700 mm
Sail area 0.9 to 1.1 m²
Open class with formula to calculate the rating
Carbon hulls, foils and spars
Hull length 1.6 to 1.9 m
Displacement 12 to 18 kgs
Draught 300 mm
Sail area 0.9 to 1.1 m²
Box class, OneDesign rigs
Glass hulls, carbon foils and alloy spars
Hull length 1 metre
Displacement 4 kgs
Draught 420 mm
Sail area 0.6 m²
From hi-tech specialists carbon fiber racing machine to the self-designed and manufactured entirely in Homework Club Racer everything is possible!
IRSA Chairman
Publicity Officer