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Olympic Games 1996

Part A - Bermudan Sails

Part A - Bermudan Sails

Note: Mainsail shall also be taken to mean mizzen; headsail shall also be take to mean staysail.

1. Definitions
Where a term defined in Part 1 is used in its defined sense it is printed in italic type.


1.1 Sail
The sail shall include headboard, clewboard, reinforcement, bolt ropes. It shall not include parts of fastening such as cringles, hanks, slides etc, which are outside the edges of the sail.


1.2 Edges of the Sail

1.2.1 Luff
Mainsail and headsail: The aft edge of the sail.

1.2.2 Leech
Mainsail and headsail: The aft edge of the sail.
Spinnaker: The edges of the sail other than the foot.

1.2.3 Foot
The bottom edge of the sail

.

1.3 Corner Measurement Points

1.3.1 Head Point
Mainsail and headsail: The intersection of the luff extended if necessary and the line through the highest point of the sail at 90 degrees to the luff.
Spinnaker: The intersection of the leeches extended if necessary.


1.3.2 Clew Point
The intersection of the foot and the leech, each extended if necessary.


1.3.3 Tack Point
The intersection of the foot and the luff, each extended if necessary.



1.4 Other Measurement Points

1.4.1 Aft Head Point
The intersection of the leech extended if necessary and the line through the head point at 90 degrees to the luff


1.4.2 Half Leech Point
The point on the leech equidistant from the head point and the clew point.

1.4.3 Quarter Leech Point
The point on the leech equidistant from the half leech point and the clew point.

1.4.4 Three-quarter Leech Point
The point on the leech equidistant from the head point and the half leech point.

1.4.5 Upper Leech Point
The point on the leech a set distance from the head point.


1.4.6 Mid Foot Point
Mainsail and headsail: The point on the foot equidistant from the tack point and the clew point

1.5 Construction

1.5.1 Ply
A layer or layers of sail material (the word ply is both singular and plural.)

1.5.2 A Woven Ply
A ply which, when torn can be separated into fibres without leaving evidence of a film.

1.5.3 A Laminated Ply
A ply made up of more than one lamina. A lamina may be woven. Laminas may each be of different weight.

1.5.4 Single-ply Sail
A sail made of only one ply except for seams, tabling, batten pockets, reinforcements, class insignia, sail letters and numbers, advertising.

1.5.5 Soft Sail
Except in areas of primary reinforcement, a sail capable of being folded flat in any direction withour damaging the ply.

1.5.6 Body of Sail
The area of a sail excluding added parts such as reinforcements, seams, corner boards, bolt ropes, batten pockets, tabling, eyes, cringles, windows.

1.5.7 Seam
Ply overlap(s) where two parts of a sail are joined together except for reinforcement, tabling and batten pockets.

1.5.8 Tabling
Additional ply or folded ply overlap(s) at the edge of a sail. (Tabling may be in addition to permitted reinforcement.

1.5.9 Sail Opening
Any opening in a sail other than a normal eye, cringle, Cunningham, reefing eye.

1.5.10 Window Opening
A sail opening which has been covered by a transparent ply.

1.5.11 Batten Pocket
Additional ply to form a pocket for a batten.

1.5.12 Double Luff Sails
A sail with more than one luff or a sail passing around a stay or spar and attached back on itself.


1.6 Reinforcement

1.6.1 Primary Reinforcement
An unrestricted number of additional ply of permitted material:

at a corner
at a Cunningham point
at a reefing point adjacent to the luff
at a reefing point adjacent to the leech
at a spinnaker recovery point
where permitted by Class Rules

1.6.2 Secondary Reinforcement
Not more than two additional ply of permitted material each not thicker than the maximum thickness of the ply of the body of the sail:

at a corner
at a Cunningham point
at a reefing point adjacent to the luff
at a reefing point adjacent ot the leech
at a spinnaker recovery point
at a flutter patch
at a chafing patch
at a batten pocket patch
where permitted by Class Rules

1.6.3 Flutter Patch
Secondary reinforcement on the leech or the foot at the end of a seam.

1.6.4 Chafing Patch
Secondary reinfocement at the inside end of a batten pocket.

1.6.5 Batten Pocket Patch
Secondary reinforcement at the inside end of a batten pocket.


" Sail Measurement Rules

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