Specifications
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(a) National letters and sail numbers shall be:
- (1) in capital letters and Arabic numerals,
- (2) of the same colour,
- (3) of a contrasting colour to the body of the sail, and
- (4) of a sans-serif typeface.
In addition, the letters and numbers identifying the boat shall be clearly legible when the sail is set.
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(b) The height of characters and space between adjoining characters on the same and opposite sides of the sail shall be related to the boat’s overall length as follows:
| Overall length | Minimum height | Minimum space between characters and from edge of sail |
|---|---|---|
| Under 3.5 m | 230 mm | 45 mm |
| 3.5 m – 8.5 m | 300 mm | 60 mm |
| 8.5 m – 11 m | 375 mm | 75 mm |
| Over 11 m | 450 mm | 90 mm |