IRC Yearbook 2010

IRC YEARBOOK 2010
Hot topics
The Rating Ofﬁ ce regularly receives questions concerning compliance with IRC
Rules. We also often hear anecdotally that boats are (generally inadvertently)
infringing IRC Rules. Commonly recurring issues are looked at below
Furling headsails
– dos and don’ts
Probably the most commonly ‘misunderstood’
IRC Rule is Rule 21.8, Furling Headsails.
Based on your application for rating, the
Rating Ofﬁ ce will determine your eligibility. It is
then your responsibility to comply while racing.
On your boat’s certiﬁ cate, you will ﬁ nd one of
the following:
Multiple headsails permitted means: You
are not receiving the furling headsail rating
credit and may use any number of headsails.
Or Multiple headsails permitted (Furler
LP<1.3*J) means: You applied for the furling
headsail credit, but are ineligible because your
rated Headsail LP is less than 1.3*J. You may
therefore use any number of headsails.
Or Single furling headsail only means: You
are receiving the furling headsail rating credit
and may use only one headsail during a race.
No other headsail may be used.
Or Single furling headsail plus H/W jib
means: You are receiving the furling headsail
rating credit at the reduced rate and may use
only one headsail or a heavy weather jib
during a race. No other headsail may be used.
For boats receiving the rating credit, other points to note are:
■ Your boat must be ﬁ tted with a complete
headsail of area not greater than 13.5 per infringing IRC Rules. If, however, she uses it
headsail furling system.
cent height of the foretriangle* squared and while racing, she infringes IRC Rules and
without reef points. ‘Height of the foretriangle’ must retire.
■ There is no restriction on carrying
is the vertical height from the sheerline
additional headsails on board, just in not
abreast the mast to the forestay attachment ■ A storm jib (see IRC Deﬁ nitions) may be
using them.
point on the mast. used by all boats at any time.
■ A No 3 headsail is NOT a ‘heavy weather
jib’ under the rules.
■ A boat rated for a single furling headsail, ■ If you are competing in a series of races,
but no heavy weather jib may nevertheless you must use the same headsail for all races
■ A heavy weather jib is deﬁ ned as a
carry a heavy weather jib aboard without in the series.
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