Adjust for N20 - move forward

Maybe we could get out local sailmaker to figure out what the numbers should be...

B.4. SAILS
SAIL PLAN
The sail plan comprises a mainsail, a jib and a spinnaker.
The sails shall be made of any polyester material for main and jib, and of nylon and polyester
woven only for spinnakers, and shall fit in a bag of normal dimensions.
B.4.1. MAINSAIL
B.4.1.1. The mainsail shall have a surface area of maximum 17.00m² including the mast.
B.4.1.2. No part of the sail shall be above the upper mast band.
B.4.1.3. The aft head point of the mainsail shall not be above the head point.
B.4.1.4. Maximum Upper width at upper leech point 1500 mm from head point : 1290 mm
B.4.1.5. Maximum Top width : 1000 mm
B.4.1.4 & B.4.1.5: Sails with larger measurements can be measured and used until 01.01.2009.
B.4.2. JIB
It shall be possible to roll the jib around the stay. From 01.03.07, the roller reefer unit is
optional. Any Long Distance race manager or organizer wanting the use of such device for
safety reasons shall mention it in the Notice of Race, otherwise sailors may sail with the roller
reefer as an optional aid.
The leech shall not be convex.
The head shall be not more than 50mm wide.
There shall not be battens on the foot.
The ISAF Equipment Rules of Sailing shall apply to jibs.
4.2.1. Two sail areas of jib are available as a function of the crew weight :
4.2.1.1. Crew categories of 115 to 150 kg :
Maximum jib sail area : 3.45m²
4.2.1.2. Crew categories of more than 150 kg and crews opting for the over 140 kg changing
of category (see B.3.3) :
Maximum Jib sail area : 4.15m²
4.2.2. For safety purpose, it is mandatory for the crew to be able, when racing, and in normal
position on the trampoline, to furl the jib around the stay. The crew may be asked to
demonstrate such ability at any time.
Formula 18 Class Rules – updated 1st July 2007 6
4.2.3. The maximum diameter of the furled jib shall be 100 mm.
4.2.4. The maximum number of jib battens will be 4. The battens and/or the batten pockets
length shall not exceed a distance of 250 mm normal from the leech. See diagram.
From 1st March 2007, fully battened jibs are allowed.
Those may have a maximum of three battens which shall have no moving parts and be made
of glass fibre, with a maximum width of 25 mm.
4.2.5. The jib tack shall not be fixed below the highest point of the bridle wire.
4.2.6. Self tacking jib devices are allowed.
B.4.3. SPINNAKER
Two sail areas of spinnakers are permitted as a function of crew weight.
Crews of 115 kg to 150 kg :
Maximum surface area for the spinnaker : 19.00m².
Crews of more than 150 kg and crews over 140 kg changing of category (see B.3.3) :
Maximum surface area for the spinnaker : 21.00m².
Battens and stiffening devices, except textile leech lines, are not permitted.
Spinnaker retrieving systems, which may be attached to the bowsprit, are allowed, subject
they comply with the general measurement F18 rules.
Regarding the legality of carbon snuffer arrangements, a carbon ring is used on some North
American snuffers, the spinnaker pole being aluminium. Such existing snuffers has been
accepted under a grandfathering arrangement until 1 January 2007. Carbon is not permitted in
the construction of new snuffers.
B.4.4. LIMITED NUMBER OF SAILS
One single suit of sails can be used for the whole duration of an event.
B.5. MARKING
All sails measured after 01/07/2007 shall have the following details clearly marked close to the
tack point of the sail:
The year of manufacture
The loft of manufacture
The cloth type used
A unique serial number
B.5.1. MARKING OF SAILS
All the sails measured shall be marked with a colour sticker affixed near the clew on the
starboard side. The sails corresponding to different weight categories of crew weight shall be
identified by the following colour code :
Jib Mainsail Spinnaker
3.45m² Green 17.00m² Pink 19.00m² Green
Formula 18 Class Rules – updated 1st July 2007 7
4.15m² Pink 17.00m² Pink 21.00m² Pink
The maximum permitted area shall be marked on the colour stickers.
The actual measured area shall be marked on the Measurement Certificate.
The area and the dimensions of the spinnaker (SL1, SL2, SMG, SF) shall be written in an
indelible manner near the starboard tack.