Part I – Administration

Section A – General

A.1 Type of Class Rules

A.1.1 These are closed class rules.

A.2 Language

A.2.1 The official language of the class is English and in case of dispute over translation the English text shall prevail.

A.2.2 The word “shall” is mandatory and the word “may” is permissive.

A.3 Abbreviations

A.3.1 ISAF International Sailing Federation

MNA ISAF Member National Authority

IFJO International FJ Orgaization

NFJO National FJ Organization

ERS Equipment Rules of Sailing

RRS Racing Rules of Sailing

A.4 Authorities and Responsibilities

A.4.1 The international authority of the class is the ISAF which shall co-operate with the IFJO in all matters concerning these class rules.

A.4.2 Neither the ISAF, the MNA, the IFJO, a NFJO, the certification authority nor an official measurer is under no legal responsibility in respect of these class rules or accuracy of measurement and no claim arising from them can be entertained.

A.4.3 Notwithstanding anything contained herein, the certification authority has the authority to withdraw a certificate and shall do so on the request of the ISAF.

A.5 Administration of the Class

A.5.1 ISAF has delegated its administrative functions of the class to MNA’s. The MNA may delegate part or all of its functions, as stated in these class rules, to an NFJO.

A.5.2 In countries where there is no MNA, or the MNA does not wish to administrate the class, its functions as stated in these class rules shall be carried out by the IFJO which may delegate the administration to a NFJO.

A.6 ISAF Rules

A.6.1 These class rules shall be read in conjunction with the ERS. Where a term is used in its defined sense, it is printed in “bold” type, if defined in the ERS and in “italic” type if defined in the RRS.

A.7 Sailing Instructions

A.7.1 These class rules shall not be varied by sailing instructions.

A.8 Amendments to Class Rules

A.8.1 Amendments to these class rules shall be proposed by the IFJO, or an MNA, and require to be approved by the ISAF.

A.9 Interpretation of Class Rules

A.9.1 General

Interpretation of class rules, shall be made in accordance with the ISAF Regulations.

A.9.2 At an Event

Any interpretation of class rules required at an event may be made by a international jury constituted in accordance with the RRS. Such interpretation shall only be valid during the event and the organising authority shall, as soon as practical after the event, inform the ISAF, the MNA and the IFJO of such interpretation.

A.10 International Class Fee(s) and ISAF Plaque

A.10.1 The International Class Fee shall be paid by the builder to the ISAF.

A.10.2 ISAF shall, after having received the International Class Fee for the hull, send the ISAF Building Fee Plaque to the hull builder.The International Class Fee Building Plaque shall be fixed by the buider into the boat and the builder shall deliver the international class fee receipt to the owner of the boat.

A.10.3 The amount of the International Class Fee shall be reviewed by the ISAF in consultation with the IFJO.

A.10.4 For 2002 the International Class Fee shall be 37.50 pounds sterling.

A.10.5 Boats built, measured and registered before 1st July 1972 do not need to have an International Class Fee paid to the ISAF.

A.11 Sail Numbers

A.11.1 Sail numbers shall be issued by the MNA.

A.12 Initial Certification

A.12.1 For a hull not previously certified, all items required to be measured by the measurement form shall be measured by an official measurer and the details entered onto the measurement form.

A.12.2 Three copies of the measurement form, shall be supplied to the owner of the boat.

A.12.3 The owner shall send three completed measurement forms together with any certification fee to the certification authority in the country where the boat is to be registered within 4 weeks after completion of measurement.

A.12.4 Upon receipt of a satisfactorily completed measurement form and the fee within the specified time limit the certification authority may issue a certificate. The certificate contains the information as stated on the measurement form. The certification authority shall retain the original measurement form which shall be transferred to the new certification authority when a boat is exported.

A12.5 The IFJO shall receive at regular intervals from each MNA details of sail numbers together with the names and adresses of owners and a copy of the measurement forms, or measurement certificates.

A.13 Validity of Certificates

A.13.1 A certificate becomes invalid upon:

(a) The date of expiration.

(a) Change of ownership.

(b) Any alteration or repair to items required to be measured by the measurement form, other than routine maintenance.

A13.2 It is the owner's responsibility to ensure that his boat, spars, sails and equipment comply with the class rules at all times and that alterations, replacements or repairs to the boat, spars, sails or equipment do not invalidate the certificate.

A.14 Re-Certification

A.14.1 Upon expiration the owner shall apply to the certification authority for a new certificate together with any re-certification fee that may be required. A new certificate shall then be issued to the owner.

A.14.2 Upon change of ownership the new owner shall apply to the certification authority for a new certificate, returning the old certificate together with any re-certification fee that may be required. A new certificate shall then be issued to the new owner.

A.14.3 Upon alteration or repair to an item required to be measured by the measurement form the relevant item shall be re-measured by an official measurer and the details entered on a new form. The new form together with the old certificate and any re-certification fee that may be required shall be sent to the certification authority in the country where the boat is registered within 4 weeks after completion. A new certificate, showing the dates of initial and new fundamental measurement, may then be issued to the owner.

A14.4 The hull shall be measured in accordance with the rules current when she was first measured.

Section B – Boat Eligibility

For a boat to be eligible to race, the rules in this section shall be complied with.

B.1 Certificate

B.1.1 The hull shall have a valid certificate.

B.2 Identification Marks

B.2.1 All emblems, marks and numbers shall be of a durable material securely attached. Emblems, marks and numbers made with indelible ink will also be accepted providing they are distinctly visible.

B.2.2 The hull shall carry, either cut into or indelibly marked on the hog or the top of the centerboard case or near the shroud fittings, the sail number and national letters in figures and letters not less than 25mm high. If the boat is sold to another country, the hull shall carry the new sail number and national letters in addition to the old one.

B.2.3 The hull shall carry the International Class Fee plaque fixed in a conspicuous position inside the cockpit. Boats built, measured and registered before 1st July 1972 do not need to have an International Class Building Fee Plaque fixed in the hull.

B.2.4 The mainsail and spinnaker shall carry identification marks as indicated in the ISAF Racing Rules. The sail number, letter(s) and class emblem shall be placed as laid down in the ISAF RRS. The emblem of the class shall be the letters FJ. In contrary to RRS rule H1.3 (a) the class insignia do not need to be placed at different heights on the two sides of the mainsail.

Part II – Requirements and Limitations

The crew and the boat shall comply with the rules in this Part when racing. Measurement required by these, except for Section C, is part of fundamental measurement which shall only be carried out by an official measurer.

Section C – Conditions for Racing

C.1 Crew

The crew shall consist of 2 persons. Each in contact with the boat.

C.2 Advertising

(a) For events which are not restricted by the organising authority to Category A (as defined in ISAF Regulation 20, "ISAF Advertising Code") advertising status, a boat may choose to display Category C (also as defined in ISAF Regulation 20) advertising, limited however to the extent allowed by this class rule. Throughout the event the boat shall not display advertising chosen by the boat of more than two organisations or persons. Permissible advertisements shall be either one or two of:

(i) the name of an organisation or person;

(ii) a brand or product name; or

(iii) a logo.

(b) Category C advertising (that is, advertising chosen by the boat in addition to that permitted or required under ISAF Regulation 20.3.1 and under Category A) may be displayed on:

(i) up to one-half of the aftermost 75% of the length of the hull excluding bow numbers

(ii) sails as follows:

(a) advertising on spinnakers is without restriction except as provided in ISAF Regulation 20.2 and in this class rule;

(b) on one other sail, only one advertisement may be carried at a time, and it may be on both sides of the sail. It shall be placed below the national letters and sail numbers and have a width no greater than two-thirds of the length of the foot of the sail and a height no greater than one-third of that width.

(iii) the mast and boom, but both displays shall be limited to the name, brand or product name, or logo of one organisation. The space within one-third of the length of the mast and two-thirds of the length of the boom may be used.”

C.3 Equipment

C.3.1 The following equipment shall be on board when racing:

(a) Two efficient paddles minimum length 900mm, minimum weight 300 grams: both measured on the paddle proper. The paddles must be stowed so that they are ready to use without opening buoyancy tanks.

(b) At least one bailer or suction bailer except in self-bailing boats.

(c) One synthetic painter not less than 20.00 meters in length and of minimum diameter 6mm. This synthetic painter may be attached to an anchor.

(d) Two adequate personal buoyancy garments, without pockets which can hold water, ready for direct use.

(e) Unless prescribed in the Sailing Instructions an anchor does not need to be carried. If prescribed in the Sailing Instructions the anchor, chain, and rode shall weigh at least 2.3kg with 20.00m synthetic line, minimum diameter 6mm attached to the anchor and boat. The anchor shall be ready to use.

C.3.2. PROHIBITIONS

Electronic instruments, except for two timing devices.

C.4 Trapeze

C.4.1 Definition

The trapeze consists of two wires attached directly or indirectly to the mast, one on each side, which can be fastened to a bodybelt to enable the crew to stand outside the gunwale.

C.4.2 The trapeze shall not be used to support more than one person at a time.

C.4.3 The bodybelt of the trapeze when wet must float its own weight and shall not weigh more than 3kg.

C.4.4 For non-international events the organizing authority or the NFJO may prohibit the use of a trapeze.

C.4.5 prohibition

The use of any apparatus or contrivance outboard or extending outboard and attached to the hull, spars, rigging or crew outboard is prohibited with the exception of the trapeze.

C.5 Hull Appendages

C.5.1 Limitations

Only one centreboard/daggerboard and one rudder blade shall be aboard.

C.5.2 Centreboard/daggerboard

(a) Dimensions

maximum

Depth of the board from the hull (excluding keel bands)................ ...... 710 mm

(b) Use

The centerboard or daggerboard shall not be turned so that the aft side faces forward, or be rotated so that its aft edge is raked forward of perpendicular to the hull at the point it exits the hull.

C.5.3 Rudder

Dimensions

maximum

Depth, measured vertically from hull datum point, with the

blade in the fully lowered position................................................. ...... 600 mm

C.6 Rig

C.6.1 Mast

(a) Use

The position of the mast is optional.

C.6.2 Boom

(a) Dimensions

minimum maximum

Spar band width ............................................................. 10 mm

Boom band distance .................................................................. …2440 mm

(i) The intersection of the aft edge of the mast spar and the top of the boom spar, each extended as necessary, shall not be below the mast spar band No 2 when the boom spar is at 90° degree to the mast spar.

C.6.3 Spinnaker Pole

(a) Use

C.6.4 Standing Rigging

(a) The standing rigging is optional but a wire forestay, diameter not less than 2mm shall be fitted.

(b) The forestay shall be attached at a point not more than 100mm aft of the stem, but it shall not be placed on the gunwale.

C.7 Sails

C.7.1 Limitations

(a) Not more than 1 spinnaker shall be carried aboard.

C.7.2 Mainsail

(a) Identification

The sail number shall comply with the RRS.

The class emblem shall be the letter FJ not less than 300 mm high.

(b) Use

(i) No part of the sail shall extend aft of the inner edge of the boom spar band, above the lower edge of the upper spar band, or below the lower edge of intermediate band 1.

(iii) Luff and foot bolt ropes shall be in the spar grooves or tracks. If the boom has no spar groove the foot of the mainsail shall be continuous attached to the boom for at least 2000 mm.

C.7.3 Jib

(a) Use

.............

C.7.4 Spinnaker

(a) Identification

The sail number shall comply with the RRS.

section D - Hull

D.1 Measurement

Measurement shall be carried out in accordance with the ERS except where stated in this class rules.

D.2 Certification

The hull shall comply with the class rules in force at the time of initial fundamental measurement.

D.3 Identification

D.3.1 The hull shall carry the International Class Fee plaque fixed in a conspicuous position inside the cockpit. Boats built, measured and registered before 1st July 1972 do not need to have an International Class Building Fee Paque fixed in the hull.

D.4 Builders

D.5.1 The hull shall be built by any professional or amature builder, no building licence is required.

D.5 Hull Shell

D.5.1 Material

(a) Material used for the hull, deck, cockpit, centerboard case, thwarts, floors, and bottom-boards is optional.

(b) The structure of the hull shall be inherently buoyant in the event of failure of all buoyancy tanks and/or bags.

D.5.2 Construction

The construction and layout of the hull, deck, cockpit, centerboard case, thwarts, floors, and bottom-boards is optional.

D.6 Buoyancy Tanks

D.6.1 Construction

(a) Boats shall have buoyancy tanks or bags firmly attached to the hull sufficient to float the boat, plus 150kg approximately level when capsized or full of water. Boats built from 1st January 1995 shall have at least two separated buoyancy tanks.

(b) Boats shall have a separate bow buoyancy bag or slabs of rigid non-communicating air cell foam plastic of not less than 70 liters securely fastened or put into a tank. Inspection of the bag and/or tank shall be easily possible.

(c) Inspection holes shall be closed in a watertight manner with detachable covers capable of resisting dislodgement whenever the boat is afloat, capsized or full of water, and shall be of sufficient size to enable secondary buoyancy to be inspected.

The measurer shall satisfy himself that buoyancy compartments are watertight.

D.7 Gunwale Rubbing Strakes

D.7.1 Gunwale rubbing strakes shall be fitted along the topsides at the height of the sheerline

D.7.2 Fairleads may be fitted to the rubbing strake, but shall not project beyond the outer edge of the rubbing strake. This modifies Rule 50.3 of The Racing Rules of Sailing.

D.8 ASSEMBLED Hull

D.8.1 Hull Dimensions

D.8.1.1 definitions

(a) The hull datum point is the intersection, on the centerplane of the hull between the underside of the shell and the transom, each extended as necessary.

(b) The sheerline datum point is the intersection on the sheerline between the shell of the hull and the transom, each extended as nessecery.

(c) The keel line shall be taken as the intersection line from transom to stem of the hull shell and the hull centreplane.

(d) The deckline is the imaginary line between the upper edge of the transom at the centerline and the highest point of the stem (excluding fittings).

(e) The baseline is defined as the straight line on the centerplane of the hull throught the points at the following vertical distances from the hull shell:

at hull datum point........................................................................ …175 mm

at section 9 ..................................................................................... …100 mm

D.8.1.2 hull measurement

(a) Measurement tolerances are intended to allow for genuine building errors only and shall not deliberately used to alter the design. The measurer shall report on the measurement form anything which he may consider to be unusual or to depart from the intended nature of the boat, or to be against the general interest of the class and a certificate may be refused even if the specific requirements of these rules are satisfied.

(b) Templates used for official measurements shall be supplied by the ISAF. Templates shall be full width non-hinged or two half-width templates hinged and fitted with a locking system

(c) The sections to be measured by templates shall be taken as transverse planes through the following 3 points (according to the measurement diagram).

Section 0:

at hull datum point, and at the sheerline datum points.

Section 3:

Distance from hull datum point measured over the keel line ............. 1115 mm,

Distance from sheerline datum point, measured along

the sheerline on both sides of the hull. ............................................. 1124 mm

Section 6:

Distance from hull datum point measured over the keel line............. 2227 mm,

Distance from sheerline datum point, measured along

the sheerline on both sides of the hull. ............................................. 2237 mm

Section 9:

Distance from hull datum point measured over the keel line.............. 3340 mm,

Distance from sheerline datum point, measured along

the sheerline on both sides of the hull. ............................................. 3402 mm

Section measurement

The section templates shall be placed so that:

(i) The template is situated entirely on the imaginary plane through the points set out on both sheerline and on the keel.

(ii) The lugs (extensions) of the templates touch the skin.

(iii) The center of the template is situated on the keelline of the hull.

(iv) The rubbing strake shall not prevent the template lug (extension) from touching the hull.

The sum of the maximum positive and negative deviations taken over both sides of any transversal hull section checked by a template shall not exceed 10mm. (This means the difference between the largest and smallest clearance shall not exceed 10 mm).

The vertical distance from the upper side of the template at the sheerline to the upperside of the deck shall not be more than 12mm.

Stem measurement

The stem template between the end lugs, shall touch, or clear the stem by not more than 6mm.

With the aft end of the stem template within 6mm of section 9, the vertical distance from the upper side of the template at the sheerline, to the upper side of the deck at the stem shall be not more than 12mm.

Keel rocker measurement

Vertical distance from baseline to outside of hull shell .............................................

at section 3 .......................................................................................... 74 mm

at section 6 .......................................................................................... 28 mm

The sum of the maximum positive deviation and the maximum negative deviation in the keel rocker measurements (H) shall not exceed 10mm (see keel rocker measurement diagram).

Beam of hull, excluding rubbing strakes, at sheerline ........... minimum...... maximum

At section 0.................................................................. 1140 mm …1160 mm

At section 3 ................................................................. 1465 mm …1485 mm

At section 6 ................................................................. 1386 mm .... 1406 mm

At section 9.................................................................... 724 mm . …744 mm

Hull length ........................................................................... minimum...... maximum

Hull overall length excluding fittings and

rubbing strake overlaps............................................... . 4020 mm ..... 4040mm

Forestay attachment ................................................................................. maximum

Horizontal distance from centre of forestay attachment

to forward end of hull excluding rubbing strakes................................. 100 mm

Gunwale rubbing strakes....................................................... minimum...... maximum

Depth ................................................................................ 5 mm.... …35 mm

Width ........................................................................... …5 mm ... …90 mm

Extension forward of stem ................................................................ …50 mm

Extension aft of the transom ............................................................. …50 mm

Centerboard slot

If fitted for a centerboard

Distance from hull datum point.................................. … 1288mm …2262 mm

If fitted for a daggerboard

Distance from hull datum point.................................. … 1588mm …2262 mm

Width of centerboard slot................................................................. …40 mm

Transom

The transom shall be set at the extreme aft end of the hull as shown on the plans.

The height of the transom at the centerline ...................... minimum...... maximum

of the hull shall be .......................................................... 394 mm....... 406 mm

Maximum radius between the shell of the hull and the transom 10 mm

Angle between the transom and the extension of the

keel line................................................................................. 78º.............. 90º

Drainage flaps shall not be installed so that they can serve as surfaces lengthening the boat.

Keelband

A keelband is optional. If fitted, the keelband shall be maximum 5mm thick and 8.5 mm wide, The keelband shall not be let or faired into the hull.

D.8.2 WEIGHT

The weight of the hull ........................................................... minimum

in dry condition including all fixed fittings, buoyancy

apparatus and protective finish, but excluding sails,

spars, rudder, centerboard, movable fittings, floorboards

(unless glued to the hull shell) and other equipment................... 75.0 kg

D.8.3 Corrector Weights

D.8.3.1 Corrector weights shall be permanently fastened to the hull when the hull weight is less than the minimum requirement.

Corrector weights .................................................................................... maximum

The total weight of corrector weights ............................................................ 5.0 kg

Section E- Hull Appendages

E.1 Measurement

E.1.1 Measurement shall be carried out in accordance with the ERS except where varied herein.

E.2. Centreboard or daggerboard

E.2.1 Certification

The centerboard or daggerboard shall comply with the class rules in force at the time of fundamental measurement.

E.2.2 Construction and Materials

The construction and materials are optional.

E.2.3 Fittings

(a) A stop shall be fitted on the board to prevent it from being lower more than 710mm below the hull (excluding keel bands).

(b) The position of the board bolt or notch is optional.

E.2.4 Dimensions

The under hull part of the board in its lowest position shall conform to the equivalent plan with a tolerance of +/-6mm on the bottom and trailing edges.

......................................................................................................... Maximum

Depth of the board from the hull (excluding keel bands)................ ...... 710 mm

E.2.5 prohibitions

Trim tabs and similar contrivances are prohibited.

E.3 Rudder and Tiller

E.3.1 Certification

The Rudder shall comply with the class rules in force at the time of fundamental measurement.

E.3.2 Construction and Materials

(a) The construction and material of the rudder, tiller and tiller extension are optional.

(b) A pivoting rudder blade is permitted.

E.3.3 Fittings

(a)

E.3.4 Dimensions

(a) The shape of the underwater part of the rudder shall conform to the full size plan with a tolerance of +/- 6mm on the bottom and trailing edges.

(b) The depth of the rudder blade, measured vertically, below the hull datum point, shall not exceed 600mm with the blade in the fully lowered position.

Section F – Rig

F.1 Parts

F.2 General

F.2.1 Measurement

Measurement shall be carried out in accordance with the ERS, except where stated in this class rules.

F.3 Mast

F.3.1 Certification

The spar and its fittings shall comply with the class rules in force at the time

of fundamental measurement of the spar.

F.3.2 Materials

The spar shall be of wood or aluminium alloy. It may be anodised or coated.

F.3.3 Dimensions

In contrary to the ERS the lower mast point is defined as the projection of the deckline on the back side of the mast. If the mast is deck stepped the lower mast point is defined as the level of the deck on which the mast is placed.

In contrairy to the ERS the height of the lower band is defined as the depth below the deckline. The upper mast band is related to the intermediate mast band.

............................................................................................. minimum...... maximum

Spar band width .................................................................... 10 mm

Lower band depth below deckline.............................................. 0 mm

If the mast is deck stepped, the lower band is not used.

intermediate mast band height above the lower mast point....................... 650 mm

Upper mast band height above intermediate mast band .......................... 4850 mm

................................................................................................................ maximum

Spinnaker hoist height .................................................................... …4150 mm

Projection of spinaker hoist fitting from mast foreside.................... ........ 51 mm

Mast spar curvature at any point.......................................................... …40 mm

F.3.4 Weights

............................................................................................ Minimum

Mast weight, if deck stepped............................................. …7,0 kg

Mast weight, if stepped inside the boat............................... …7,5 kg

The mast is weight without any removable parts of the trapeze system.

F.3.5 prohibitions

(a) Rotating masts.

F.4 Boom

F.4.1 Certification

The spar and its fittings shall comply with the class rules in force at the time

of fundamental measurement of the spar.

F.4.2 Materials

The boom shall be of wood or aluminium alloy. It may be anodised or coated.

F.4.3 Dimensions

minimum maximum

Boom band distance ......................................................................... … 2440mm

Boom band width ................................................................... 10mm....................

Boom spar cross section shall be able to pass through

a circle diameter of..................................................................................... 100mm

Boom spar curvature at any distance from boom point.......................... …20 mm

F.5 Spinnaker Pole

F.5.1 Dimensions

When the spinnaker pole is fixed to the mast and, with light effort, pressed against the mast fitting and held at right angles, the spinnaker boom, including all fittings, shall not project from the foreside of the mast more than …1625 mm

F.7 Standing Rigging

F.7.1 The standing rigging is optional but a wire forestay with a diameter not less than 2mm shall be fitted.

F.7.2 prohibitions

A rod forestay.

F.8 Running Rigging

F.8.1 The type of material of running rigging, sheets and fittings is optional.

F.8.2 The headsail tack shall be attached at or aft of the forestay attachment.

F.8.3 prohibitions

(a) Running backstays.

(b) Roller reefing devices for the headsail.

Section G - SAILS

G.2 Measurement

G.2.1 Measurement shall be carried out in accordance with the ERS except where stated in this class rules.

G.3 Certification

G.3.1 Sails shall comply with the class rules in force at the time of fundamental measurement.

G.3.2 An MNA may appoint one or more persons at a sailmaker to measure and certify sails produced by that manufacturer. A special license shall be awarded for that purpose.

G.3.3 The official measurer shall certify mainsails and headsails in the tack and spinnakers in the head and shall sign the certification mark and date it with the date of fundamental measurement.

G.4 Construction

(a) All sails shall be flexible, soft and capable of being easily stowed whether of woven or non-woven fabric. The body of the shall be so constructed that it can be folded flat in any direction other than in way of the corner stiffening as defined below.

(d) Reinforcements having the effect of stiffening the sail shall be permitted within a distance of 320mm from each corner, but it shall be possible to fold it (with one hand) in any direction with an external diameter not exceeding 4mm. All two or more layers of cloth which are greater size than normal seams or broad seams will be deemed reinforcement but shall be allowed provided it is not stiffened by the addition of bonding agents, close stitching or otherwise. Glued seams shall not be considered stiffening.