E8-G1.5
Positioning
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(a) Class insignia, sail numbers and national letters shall be positioned
- (1) on both sides of the sail;
- (2) with those on the starboard side uppermost;
- (3) approximately horizontally;
- (4) with space for a prefix ‘1’ in front of the sail number; and
- (5) with no less than 40 mm vertical spacing between lines of numbers and letters on opposite sides of the sail.
However, symmetrical or reversed class insignia may be positioned back to back.
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(b) Symmetrical or reversed class insignia shall be on the mainsail, above a line perpendicular to the luff through the three-quarter leech point, and may be positioned back-to-back. Otherwise, the vertical spacing shall be no less than 20 mm.
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(c) On a mainsail, sail numbers shall be positioned
- (1) below class insignia;
- (2) above the line perpendicular to the luff through the quarter leech point;
- (3) above national letters.