Effective: 01.12.2002

 

Issue 5.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Zoom 8

 

Class Rules

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Rules made in accordance with the ISAF One-Design Class Rules Standards


TABLE OF CONTENTS

SECTION A – FUNDAMENTAL RULES                                         4

A0       Objective of these Rules                                                                                   4

A1       One-Design Clause                                                                                          4

A2       Abbreviations                                                                                                   4

A3       Authority                                                                                                          4

A4       Language                                                                                                         5

A5       Class Rules and their Interpretations                                                                 5

 

SECTION B – ORGANISATION                                                      5

B1       Administration of the Class                                                                               5

B2       International Class Fee / Plaque and the Licensed Builder’s Plague        5

B3       Sail Numbers                                                                                                   6

B4       Measurers                                                                                                        6

B5       Measurement Certificates                                                                                 6

B6       Change of Ownership                                                                                       6

B7       Amendments to Class Rules                                                                             7

 

SECTION C – CONDITIONS FOR RACING                                   7

C1       Equipment                                                                                                        7

1                    General                                                                                                7

2                    Mandatory                                                                                           7

3                    Optional                                                                                               7

4                    Limitations                                                                                            8

5                    Additional Rules                                                                                   8

C2       Buoyancy                                                                                                         8

C3       Flotation                                                                                                          8

C4       All-Up Weight                                                                                      8

C5       Setting of Sails                                                                                      8

C6       Crew                                                                                                               8

C7       Advertising                                                                                                       8

C8       Certificate                                                                                                        9

C9       Membership                                                                                                     9

C10     Additional Rules                                                                                               9

 

SECTION D –HULL AND DECK                                                   10

D1       Measurements and Endorsements                                                                   10

D2       Builders                                                                                                         10

D3       Hull Shell                                                                                                       10

1                    Materials                                                                                            10

2                    Dimensions                                                                                         11

3                    Weights                                                                                              11

D4       Deck                                                                                                             11

D5       Hull Additions                                                                                    11

1                    Bulkheads, Thwarts                                                                            11

2                    Buoyancy                                                                                           11

D6       Additional Rules                                                                                             11

 

SECTION E – HULL APPENDAGES                                             11

E1        Measurements and Endorsements                                                                   11

E2        Builders                                                                                                         12

E3        Dagger Board, Rudder Blade, Rudder Head and Tiller                                    12

1                      Materials                                                                                           12

2                      Dimensions                                                                                        12

E4        Rudder Head                                                                                                 12

E5        Tiller and Tiller Extension                                                                                13

                                                                                  13

SECTION F – RIG                                                                          13

F1        Measurements and Endorsements                                                                   13

F2        Manufacturers                                                                                                14

F3        Mast                                                                                                              14

1                    Materials                                                                                            14

2                    Fittings                                                                                   14

3                    Dimensions                                                                                         14

F4        Boom                                                                                                            14

1                      Materials                                                                                           15

2                      Fittings                                                                                              15

3                      Dimensions                                                                                        15

F5        Spinnaker Boom                                                                                            15

F6        Standing Rigging                                                                                             15

F7        Running Rigging and Fittings                                                                15

1                    Materials                                                                                            15

2                    Dimensions                                                                                         15

F8        Additional Rules

 

SECTION G – SAILS                                                                     16

G1       Measurements and Endorsements                                                                   16

G2       Sailmakers                                                                                                     16

G3       Mainsail                                                                                                         16

1                      Construction                                                                                      17

2                      Dimensions                                                                                        17

G4       Headsails                                                                                                       17

G5       Spinnakers                                                                                                     17

G6       Identification Marks                                                                                       17

 

SECTION I – APPENDIX, MEASUREMENTS                               18


ZOOM 8 CLASS RULES                            Effective: 4.11.2002 onwards   Issue 5.

 

 

The Zoom 8 was designed in 1991 by Henrik Segercrantz, Finland, and was recognised by ISAF in 2002.

 

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SECTION A – FUNDAMENTAL RULES

 

A.0      Objective of these Rules

 

A.0.1   The Zoom 8 is a Strict One-Design Dinghy. The intention of these Rules is that the boats shall be as alike as possible in all respects affecting performance in order that the true test, when raced, is between crews and not boat or equipment.

 

A.1      One-Design Clause

 

A.1.1   Anything not specifically permitted by these Class Rules is PROHIBITED.

 

A.2      Abbreviations

 

A.2.1   ISAF   International Sailing Federation

            MNA  ISAF Member National Authority

            IZCA   Zoom 8 International Class Association

            NCA   National Zoom8 Class Association

            ICF     International Class Fee

            OAR   Owner of All Rights to the Design and Brand name

            MC     Measurement Certificate

            RRS    International Yacht Racing Rules (Racing Rules of Sailing)

            LBP    Licensed Builders Plaque

            ERS    Equipment Rules of Sailing

 

A.3      Authority

 

A.3.1   The authority of the Class is IZCA, which will cooperate with ISAF in all matters concerning these Class Rules. All final ruling concerning these Class Rules, the Measurement Diagrams, the Appendix, Measurement, and the Building Specifications shall be approved by ISAF.

 

A.3.2   Neither the ISAF, an MNA, the IZCA, an NCA nor a requested measurer is under any legal responsibility in respect of these Class Rules or accuracy of measurement and no claim arising from them can be entertained.


A.4      Language

 

A.4.1   The official language of the Class is English and in case of dispute over a translation the English text shall govern.

 

A.4.2   The word “shall” is mandatory and the word “may” is permissive.

 

A.5      Class Rules and their Interpretations

 

A.5.1   Whenever in these Rules the words “Class Rules” are used, they shall be taken as including the Measurement Diagrams and the Appendix, Measurement.

 

A.5.2   In case of discrepancy between these Rules, the Measurement Diagrams, the Appendix, Measurement or the Building Specifications, the matter shall be referred to the MNA or the ISAF as stated in A.3.1.

 

A.5.3   Any interpretation of Class Rules required at an event may be made by an International Jury, constituted in accordance with RRS. In this case, the jury shall consult the event chief measurer. Such interpretation shall only be valid during the event, and the organising authority shall, as soon as practical after the event, inform the ISAF and IZCA of such an interpretation.

 

A.5.4   All measurements have a tolerance of ± 5 mm unless otherwise stated in these Rules.

 

SECTION B - ORGANISATION

 

B.1      Administration of the Class

 

B.1.1   The MNA may delegate part or all of its functions, as stated in these Class Rules, to an NCA.

B1.2    In countries where there is no MNA, its functions as stated in these Class Rules shall be carried out by the IZCA, which may delegate the administration to an NCA.

 

B.2      International Class Fee / Plaque and the Licensed Builder’s Plaque

 

B.2.1   The ICF shall be paid by the Licensed Builder to ISAF who shall, after having received the ICF, provide the builder with the ISAF plaque.

 

B.2.2   All dinghies shall to be equipped with a unique LBP, provided by the OAR, stating the name of the builder and the CE-certification or other needed safety organ in the country of production. No dinghy not showing this plaque firmly attached to its cockpit may be measured or accepted by an MNA as a Zoom 8 Racing Dinghy.


B.3      Sail Numbers

 

B.3.1   The sail number shall be issued by the MNA, who shall inform the NCA of the names and addresses of the owners as well as the sail number.

 

B.3.2   The sail numbering is based on a national sail numbering system starting from number 1. Alternatively, an owner may be allotted a personal sail number by the MNA, which may be used on all his/her yachts in the Class.

 

B.4      Measurers

 

B.4.1   Fundamental measurement (measurement required by the Class Rules) shall only be carried out at the Licensed Builder’s premises by a measurer recognised by the MNA in the country where the measurement takes place.

 

B.4.2   A measurer shall not measure any part owned, designed, or built by him, or in which he is an interested party, or has a vested interest, except where permitted by these Class Rules.

 

B.4.3   Each MNA/NCA may appoint one or more indoor measurers to carry out the Fundamental Measurement at a Licensed Builder’s premises.

 

B.4.4   If a measurer is in any doubt as to the legality of any part he shall consult the MNA before signing the MC.

 

B.5      Measurement Certificates

 

B.5.1   The owner shall present the MC issued together with a receipt of evidence that the NCA fee has been paid to the MNA together with any registration fee that may be required.

 

B.5.2   Upon receipt of a correctly completed MC and given proof of that the sailor is currently a member of a sailing club/member of the MNA, the MNA shall issue a sail number. The MNA/NCA shall always retain a copy of the MC.

 

B.5.3   Notwithstanding anything contained herein, the MNA may withdraw an MC and shall do so on request of the ISAF. Upon request, an owner is to return the MC to the MNA.

 

B.5.4   The LBP, stated in B.2.3 shall be permanently fixed, upon approval by the recognised measurer, on port side in the aft end of the cockpit.

 

 

 

B.6      Change of Ownership

 

B.6.1.  Change of ownership invalidates the MC, but may not necessitate re-measurement. The new owner shall apply to the MNA/NCA for a new MC, returning the old certificate with any registration fee that may be required. A new MC shall then be issued to the new owner.


B.7      Amendments to Class Rules

 

B.7.1   Amendments to these Rules shall be approved by each of:

a)                  NCA

b)                 IZCA

d)        ISAF who will have the final ruling

 

B.7.2   Amendments of these Rules shall be approved by at least two thirds of the members in the NCA, replying in writing to the IZCA in response to a postal or electronic ballot published by them. Only those postal votes returned within two months from date of publication of the rule change shall be presented to ISAF for a final ruling.

 

SECTION C – CONDITIONS FOR RACING

 

C.1      Equipment

 

C.1.1   General

a)      Only equipment endorsed in accordance with these Class Rules shall be used.

b)      Any safety equipment required by an international, national or other governing authority for safety purposes may be fitted or carried.

 

C.1.2   Mandatory

a)       A towing line must be attached to the bulls eye in the bow at all times when racing. The line shall of a floating type and shall have a diameter of not less than 6 mm and length not less than 5 m unless otherwise prescribed by the Race Committee. The towing line shall have a nominal braking strength of not less than 300 kg equal to 2940 N.

b)      A shock cord arrangement of the type and dead ends as supplied by the builder shall at all times while racing be used in order to keep the dagger board in place when capsizing.

c)       The mast shall at all times while racing be fixed to the hull with the Cunningham in order to keep it in place if capsizing.

d)      The hiking straps shall at all times when racing be functional and fixed in both ends as supplied by the builder.

e)       A red protest flag shall be attached between the deck and the aft side of the mast and a point on the bottom edge of the boom in a distance not more 760 mm from the mast.

 

C.1.3   Optional

a)      One compass is permitted mounted on any part of the deck or in the cockpit provided that the hull cavity is not pierced by anything other than the fasteners. The compass shall not be fitted to the inspection ports.

b)      No electronic equipment for determination of speed, true course or position, or any alike equipment, may be carried or added as a function to the compass. 

c)      Electronic timing devices are allowed.

d)      Wind indicators may be attached as desired provided that the sail is not cut and the buoyancy of the hull and mast are not impaired.

e)      Clips, ties or bags to stow or secure safety or other equipment may be used on the deck, at the inspection ports, or in the cockpit.

f)        Non-slip tape may be applied at the deck and in the cockpit.

g)      The use of ropes, lines, plastic flexible adhesive tape or similar is permitted to secure shackles, pins and clips, to bind sheets, lines and rigging, except what is stated under limitations.

h)      The hiking straps may be substituted with any type of non-stretch material and they may be padded.

i)        The shock cord attachments to the hiking straps are free.

j)        The outhaul line may be prolonged with a line going around the mast to enable outhaul adjustment at all times.

k)      The Cunningham may be run through a double line fixed to the boom fitting to cease the force needed for tensioning the luf.

l)        The traveller adjustment line may have 1:1 or 1:2 ratio.

 

C.1.4   Limitations

a)       Ropes, lines, flexible adhesive tape or similar shall not be used to construct new fittings or modify the function of the existing fittings.

b)       In series of races no more than one sail or item of equipment shall be used except when mentioned in the sailing instructions or when a sail or item of equipment has been damaged beyond repair. Such replacement may be made only with the approval of the Race Committee.

 

C.1.5   Additional Rules

a)      The rudder blade shall be maintained in the full down i.e. vertical position except when exceptions to this rule is prescribed by the Race Committee for racing in shallow waters.

b)       All inspection port covers and the drainage plug shall be in place and tight while racing.

 

C.2      Buoyancy

 

C.2.1   All three buoyancy bags inside the hull shall be filled with air at all times when racing.

 

C.3      Flotation

 

            No restrictions.

 

C.4      All-Up Weight

 

C.4.1   The all-up weight of the dinghy in racing condition, excluding all optional equipment, shall not be less than 48 kg.

 

C.5      Setting of Sails

 

C.5.1   The sail shall be set so that the highest visible point of the sail at the head does not exceed the top of the mast.

 

C.6      Crew

 

C.6.1   The Zoom 8 shall be raced with either one or two persons aboard.

 

C.7      Advertising

 

C.7.1   Advertising is permitted in accordance with ISAF Regulation 26 as Category C.

 

C.8      Certificate

 

C.8.1   The dinghy shall have been granted an MC by its MNA in the owner’s name.

 

C.8.2   Any dinghy owned by a MNA member club, registered as a member in the NCA, which has been granted an MC in the clubs name, may appoint its members to use their dinghy in any race.

 

C.9      Membership

 

C.9.1   No person is permitted to race a Zoom 8 in any fleet, inter-fleet, district or other sanctioned event unless at least one member of the crew is a member of the NCA.

 

C.9.2   The NCA may issue a temporary membership to such a sailor who is appointed a Wild Card (a dinghy free of charge for one specific event) by the organisers of a national or international event.

 

C.9.3   If a sailor does not have a NCA in his own country, his/her membership application will be appointed to the IZCA, who will adopt the sailor as a temporary member until such a time when the NCA in the country in question has been formed.

 

C.10    Additional Rules

 

C.10.1 See section 1 Appendix Measurements.

 

C.10.2 One watertight inspection port not exceeding 152 mm internal diameter may be installed on the foredeck for access to the hull cavity.

 

C.10.3 Cushions or similar which are attached to the shell of the dinghy are prohibited.

 

C.10.4 Regarding clothing, R.R.S. shall apply except that

a)      Fabric weight jackets and water pockets, compartments or containers in or attached to clothing or equipment are not permitted.

b)      The total weight of clothing and equipment worn by a competitor, excluding footwear, shall not be capable of exceeding 11,o kg when soaked with water and weighed as provided in the R.R.S.


SECTION D – HULL AND DECK

 

D.1      Measurements and Endorsements

 

D.1.1   The hull and deck shall be joined and conform to the Class Rules in force at the time of fundamental measurement. Alternations or repairs shall be in accordance with the current Class Rules.

 

D.1.2   The fundamental measurement procedure is presented in the Builders Manual chapter B3.

 

D.1.3   If IZCA has forwarded Fundamental Measurement Templates for measuring the hull, deck or any specific part of the dinghy, then these have to be used at the Fundamental Measurement.

 

D.1.4   The hull and deck shall be fundamentally measured and measurer is to issue a MC before the dinghy leaves the builder’s premises. In case of measurement dispute, C.10.1 is applied.

 

D.1.5   Repairs and preventive maintenance to the hull, deck or any fittings and fixings may be carried out without violation of these Rules provided such repairs are made in such a way that the essential shape characteristics or function of the original are not affected.

 

 

D.2      Builders

 

D.2.1   Hull builders shall be licensed and trained in the production of the dinghy by the OAR and proven their skill being registered as Licensed Zoom 8 builders by all MNA.

 

D.2.2   The Licensed builder shall, at his own expense, correct or replace any dinghy that does not comply with the Class Rules as a result of an omission or error by the builder.

 

D.2.3   The Zoom 8 shall display a LBP obtained from the OAR fixed in the rear port side of the cockpit as stated in B.2.3.

 

D.2.4   All dinghies shall be produced from moulds taken from the Master Moulds or their substitute approved by both the OAR and the ISAF.

 

D.3      Hull Shell

 

D.3.1   Materials

 

a)                  The hull and deck shall be built in accordance with the Builders Manual.

b)                 Construction shall be of approved glass reinforced polyester resin, GRP. Where distance material is used, it shall be of Coremat-type or equal. The use of fibres other than glass is prohibited. The use of epoxy or vinylester in the hull or deck is prohibited.

c)                  The deck shall be assembled with the hull in an approved hull mould.

 

D.3.2   Dimensions

           

The hull and deck dimensions shall be in accordance with the Appendix, Measurement.

 

D.3.3   Weights

 

a)