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IRC Rules change for 2010 and 2011

by Jean Sans/Mike Urwin on 21 Dec 2010
IRC
IRC Rule Changes - Following consultation and agreement with the IRC Policy Steering Group, the IRC Technical Committee has decided that the following changes to IRC Rules for 2010 and 2011 will take effect from 00:01 on Monday 20th December 2010.

The substantive effect of the changes is that FL and J are always measured to the permanent forestay. In addition, it is clarified that a headsail may be hoisted and tacked from outside the foretriangle.





For a PDF version of the Rule change and a French translation, see www.rorcrating.com or www.ircrating.org

Insert: The ERS definition of Forestay shall not apply. Forestay is defined as:

Forestay: Permanently attached rigging providing forward support for a mast spar.

References throughout IRC Rules and Definitions to forestay are replaced by forestay.

Delete: FL The forestay length measured from the forward end of J to the higher of either:

(a) the forestay rigging point, or:

(b) if a headsail may be set forward of the forestay, the intersection of the spar and the lower edge of the halyard used to hoist the headsail, when at 900 to the spar, extended as necessary.

Replace: FL The forestay length measured from the forward end of J to the forestay rigging point.

Delete: J The longitudinal distance between the intersection of the fore side of the mast spar, extended as necessary, and the deck including any superstructure; and the most forward point on the deck, or a centreline bowsprit spar, to which a headsail may be tacked, projected if necessary.

Replace: J The longitudinal distance between the intersection of the fore side of the mast spar, extended as necessary, and the deck including any superstructure; and the intersection of the centreline of the forestay, extended as necessary, and the deck, or bowsprit spar.

Delete: 21.3.3 RRS 50.3(a) is amended to the extent that a spinnaker may be tacked to a bowsprit. A headsail may only be tacked to a bowsprit if J and FL are measured to the headsail tack attachment point on the bowsprit. See the definitions of J and FL.

Replace: 21.3.3 RRS 50.3(a) is amended to the extent that a spinnaker or a headsail may be tacked to a bowsprit.

Delete: Headsail RRS 50.4 shall not apply. Any sail tacked down forward of the foremost mast which does not meet the definition of a spinnaker.

Replace: Headsail RRS 50.4 shall not apply. Any sail tacked down forward of the foremost mast which does not meet the definition of a spinnaker. A headsail may be hoisted from above the forestay rigging point.

Delete: LP The luff perpendicular of the largest area headsail on board and which may be used while racing. For a cutter rig, LP is measured as the shortest distance from the aftmost clew point of any headsail when set on the centre line of the boat, to the foremost forestay.

Replace: LP The luff perpendicular of the largest area headsail on board and which may be used while racing. For a cutter rig, LP is measured as the shortest distance from the aftmost clew point of any headsail when set on the centre line of the boat, to the foremost headsail luff which may be set while racing.

Note: Boats which may set more than one headsail simultaneously shall measure LP in accordance with the cutter rig LP definition.
Lloyd Stevenson - AC Alinghi 1456x180px BOTTOMHenri-Lloyd - For the ObsessedVaikobi 2024 FOOTER

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