8.1.1 Sails shall be of soft sail construction, otherwise the choice of sail
material is optional.
8.1.2 Stretching after measurement resulting in the maximum dimensions
being exceeded is not permitted and continued conformity with Class
Rules is the responsibility of the owner.
8.1.3 No sail shall have a hole or aperture other than the normal reefing and
8.1.4 Sail reinforcement is not restricted.
8.2.1 The mainsail shall conform with the Class Rules and the measurement
diagrams, except that a sail smaller in any dimension except batten
position is allowed.
8.2.2 The luff shall be secured to the mast spar over at least 80 per cent of
8.2.3 The following dimensions, including boltropes where fitted, shall not be
• Top width 127mm
• Width at upper leech point 325mm from head point 270mm
• Three-quarter width 1120mm
• Half width 1950mm
• Leech length 6960mm
8.2.4 The mainsail shall have not more than four battens in the leech. At
the leech, the centre of the top batten pocket shall be between
1450mm and 1550mm from the head point, and the centre of the
bottom batten pocket shall be between 1250mm and 1490mm from
the clew point. No batten pocket shall be located less than 1000mm
from any other batten pocket. No batten or batten pocket shall
exceed 1180mm in length
8.2.5 The Class insignia to be displayed on the mainsail shall be in
accordance with the shape and tolerances shown in the Measurement
8.3.1 The headsail shall conform to the official rules and diagrams, except
that a sail smaller in any dimension except batten position is allowed.
8.3.2 The leech shall not extend beyond a straight line from the aft head
point to the clew point.
8.3.3 The following dimensions shall not be exceeded:
• Luff length 4510mm
• Foot length 2287mm
• Leech length 4000mm
• Top width 40mm
8.3.4 Not more than three battens shall be used in the leech of any
headsail. The outer ends of the battens shall be located within 102mm
of marks dividing the leech into four (if three battens) or the appropriate
number of equal parts. Not more than one batten, part of which shall be
within 50mm of the centre, is permitted in the foot. No batten or batten
pocket shall exceed 305mm in length and 51mm in width.
8.3.5 No part of the foot shall lie outside a measurement taken in the
Lay out the headsail on a flat surface.
Fold the tack onto the clew and smooth the headsail to find the
“intersection point” where the luff is intersected by the fold from the
centre of the foot.
The measurement is the distance taken from the “intersection point” to
the tack and the clew. No part of the foot shall lie at a greater radius
from the “intersection point” with all wrinkles removed from the sail on
the line of measurement.
8.3.6 A sleeve luff may be made to enclose the forestay but the width of
such a sleeve shall not exceed 76mm.
8.3.7 An extension of the headsail luff when set shall cut the centreline of
the deck between the stemhead and a point 400mm abaft the
8.3.8 There shall be a window in the lower part of the headsail of a minimum
size of 0.15m2.
8.4.1 The spinnaker shall be a symmetrical three-cornered sail in
accordance with the Class Rules and Measurements Diagrams except
that a sail smaller in any dimension is allowed.
8.4.2 The following dimensions shall not be exceeded:
• Leech length 6000mm
• Foot median (head point to mid foot point) 7096mm
• Foot length 4500mm
• Half width 4500mm
8.4.3 RRS Appendix G paragraph 1.3(d) is deleted and replaced with:
“National letters and sail numbers are not required on the spinnaker.”