Document Navigation: Click link below to jump to applicable Document Section
Section I - General, Section II -One-Design, Section III - Measurement Controls, Section IV - Hull Configuration Controls, Section V - Decks & Internal Layout Controls, Section VI - Hull Weight Controls, Section VII - Mast & Sails, Section VIII - General, Section IX - Prohibitions, Appendix 1, Appendix 2.

Section Navigation: Click link below to jump to applicable Section Clause/Rule
11.0 Length Measurement, 12.0 Beam Measurement, 13.0 Apertures in Hull Skin, 14.0 Projections beyond Hull Skin, 15.0 Centreboard Case, 16.0 Gunwale, 17.0 Keelband, 18.0 Decking & Side Benches, 19.0 Thwart, 20.0 Apertures in Decks & Bulkheads, 21.0 Hatches, 22.0 Centreboards, 23.0 Rudder Blade, 24.0 Floorboards, 25.0 Shroud Plates, 26.0 Building Plaque, 27.0 Hull Weight.

SECTION IV -HULL CONFIGURATION CONTROLS

11.0 LENGTH MEASUREMENTS
11.1 The length measurements under Rule II shall be taken from the main aft face of the transom.

11.2 Length excluding stem band and fittings 4240 mm, plus or minus 20 mm.

11.3 Transom to main forward face of aft bulkhead on the centreline at 25 mm from its upper edge 580 mm plus or minus 20mm.
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12.0 BEAM MEASUREMENTS
12.1 The beam measurement points under Rule 12 shall be measured from main aft face of transom.

12.2 Beam measurements under Rule 12 shall be to outer edge of deck, excluding fendoffs.

12.3 Beam at 586 mm from transom. 1570 mm plus or minus 20 mm.

12.4 Beam at 1700 mm from transom. 1775 mm plus or minus 20 mm.

12.5 Beam at 3120 mm from transom. 1240 mm plus or minus 20 mm.
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13.0 APERTURES IN HULL SKIN
13.1 No apertures in the hull skin shall be permitted save for those listed in Rule 13.
13.2 Centreboard slot. Permitted in accordance with Rule 15.2.

13.3 Self Bailers Maximum number permitted shall be 2. Maximum aperture in hull skin for each. 7000 sq mm.

13.4 Drain holes in transom. Maximum number permitted shall be 4. Maximum diameter of each. 30 mm.
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14.0 PROJECTIONS BEYOND HULL SKIN
14.1 The only permitted projections shall be.
a) Spinnaker sheet/guy retaining hook. Maximum projection beyond stem 2OO mm.
b) Resilient fendoffs. In accordance with Rule 16.2.
c) Cleats or eyes for fastening covers or life lines. None shall project forward of the stem band or beyond the gunwale
d) Stemband, keel bands and bilge keel bands. In accordance with Rule 17.
e) Rudder hangings and rudder retaining clip.
f) Name plates.
g) Drain plugs. In accordance with Rule 13.4.
h) Self bailers. In accordance with Rule 13.3.
i) Overlap of deck moulding.
j) Pad for outboard motor.
k) Rowlock sockets, abaft transom for steering oar. Maximum number shall be 2. Shall not be used when racing.
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15.0 CENTREBOARD CASE
15.1 Internal width at 5 mm up from bottom of keel {excluding keelband) 35 mm maximum.

15.2 Slot in keel.
a) Forward end to outside transom, measured along keel. 2425 mm, plus or minus 15 mm.
b) Aft end to outside transom, measured along keel. 1330 mm plus or minus 15 mm.
c) Slot closure strips shall be permitted. [revised Feb 23rd 2006].

15.3 Centreboard bolt.
a) Aft edge of bolt to aft end of centreboard slot, thence along keel to aft face of transom, 2365 mm plus or minus 7 mm.
b) Lower edge of bolt to underside keel (excluding keel band), 65 mm plus or minus 10 mm.
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16.0 GUNWALE
16.1 Only resilient fendoffs or rubbing strakes are permitted.
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17.0 KEEL BAND
17.1 Shall be fitted from the underside of the stemhead to the forward end of the centreboard slot, from the after end of the centreboard slot to the stern, and along both sides of the centreboard slot.

17.2 Material. Durable, corrosion resistant metal

17.3 Thickness. 8 mm maximum.

17.4 Width. 20 mm maximum.

17.5 Additional keel bands. May be fitted, but their weight shall not be included in the hull weight.(Rule 27.1 e).
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SECTION V -DECKS AND INTERNAL LAYOUT CONTROLS

18.0 DECKING AND SIDE BENCHES
18.1 Foredeck, side decks, aft deck and side benches shall conform to official plans. (See also Rule 2.5).
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19.0 THWART
19.1 Shall be solid or laminated timber.

19.2 Width. 222 mm plus or minus 10 mm.

19.3 Thickness. minimum ??? mm
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20.0 APERTURES IN DECKS AND BULKHEADS
20.1 No apertures in the decks or bulkheads shall be permitted save for those listed in Rule 20.

20.2 Hatches. Shall be permitted in accordance with Rule 21.

20.3 Holes for fastenings used to attach fittings. Shall be 10 mm maximum diameter, and shall be sealed to maintain water-tightness of buoyancy compartments.

20.4 Holes in Foredeck. Shall be permitted as follows:
a) Two holes, each of maximum diameter 10 mm. Neither of these holes shall be centred more than 60 mm from the recess for the mast.
b) One hole of maximum diameter 5mm on the longitudinal centreline, centred not more than 27Omm from the extreme forward end of the hull, including fittings.
c) Spinnaker chute aperture of dimensions and location in accordance with the official plans and specifications.

20.5 Shroud plate apertures:- Shall be close fitting. Shrouds shall not pass through the deck.

20.6 Apertures in each side deck or structure. Shall be permitted in the horizontal and vertical surface as follows:
a) Rowlock socket. One only. Diameter of hole 30 mm maximum.
b) Spinnaker sheet control ports Aggregate area (in horizontal and vertical surfaces together). 1200sq mm maximum.
c) Hand holes. One only, extending not more than 495 mm from the transom. Maximum length 175mm. Maximum width 45 mm.

20.7 Apertures in forward bulkhead. Not more than two drain holes, each of maximum diameter 30mm.

20.8 Apertures in each longitudinal bulkhead.
a) Not more than one drain hole of maximum diameter 30mm.
b) One opening 860mm +/- 30mm long and 165mm +/- 5mm high, located aft of the centre thwart.

20.9 Apertures in aft bulkhead. Not more than two drain holes, each of maximum diameter 30 mm

20.10 Drain tubes. Not more than two drain tubes each of maximum diameter 30 mm may connect the drain holes in the aft bulkhead with those in the transom Any such drain tubes shall make watertight joints with bulkhead and transom and shall not affect the watertightness of the stern locker.

20.11 Closure. All apertures in the buoyancy compartments shall be effectively closed in a watertight manner when racing.
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21.0 HATCHES
21.1 In forward bulkhead. One or two circular inspection ports may be fitted. Their openings shall be 110mm plus or minus 15 mm in diameter and their centres shall be within 240 mm of the upper edge of the bulkhead and within 180mm of the centreline.

21.2 In longitudinal bulkheads. Not more than one circular inspection port may be fitted in each side. Their openings shall be 110mm plus or minus 15 mm in diameter

21.3 In aft deck (excluding Wanderer Club).
a) Width of hatch opening at forward end 845 mm plus or minus 15 mm.
b) Width of hatch opening at aft end 700 mm plus or minus 15 mm, MD version 670 mm plus or minus 15mm.
c) Length of opening 410 mm plus or minus 10 mm.
21.4 Hatch covers. When in normal use the inspection hatches required or permitted by Rule 21.1 and Rule 21.2 shall be closed in a watertight manner. The cover for the aft hatch (Rule 21.3) is not required to be watertight.
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22.0 CENTREBOARD
22.1 Material. Shall be solid wood or marine plywood.

22.2 Profile. (Including any protective bands) shall conform to the official plans. Handles to assist raising and lowering are permitted.

22.3 Thickness. Shall be uniform. Maximum 28 mm. Minimum 18 mm. except for permitted chamfer.

22.4 Chamfer. Shall not extend more than 65 mm from any edge.

22.5 Edges. May be protected by metal or plastic bands of 10 mm maximum thickness.

22.6 Weight. Weight concentration in particular part of the centreboard is prohibited. Weight shall not exceed 6.0kg.

22.7 Angle. It shall not be possible to lower the centreboard beyond the position in which its leading edge is raked at an angle of 85 degrees to the tangent to the under surface of the keel at its point of intersection with the centreboard's leading edge.

22.8 Depth. When fully lowered the bottom of the centreboard shall not be less than 850 mm or more than 900 mm from the underside of the keel (excluding keel band).
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23.0 RUDDER BLADE
23.1 Material. Shall be solid wood or marine plywood.

23.2 Profile. (Including any protective bands) shall conform to the official plans.

23.3 Thickness. Shall be uniform. Maximum 28 mm. Minimum 18 mm except for permitted chamfer.

23.4 Chamfer. Shall not extend more than 55 mm from any edge.

23.5 Edges. May be protected by metal or plastic bands of 10 mm maximum thickness.
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24.0 FLOORBOARDS
24.1 Position. Shall be fitted when racing but shall be removable.

24.2 Material. Shall be plywood, of minimum thickness 8 mm.

24.3 Number. One or two on each side of the centreline.

24.4 Weight. Shall total 9 kg plus or minus 2 kg in conditions specified in Rule 27.la and Rule 27.lb.

24.5 Apertures. Finger holes, pump, drain and self bailer apertures shall be permitted.

24.6 Extent. Shall be substantially in accordance with the official plans, and shall not make watertight joints with bulkheads, hull and centreboard case.
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25.0 SHROUD PLATES
25.1 Distance from outboard corner of main aft face of transom to centre of pin hole in each shroud plate. 2435mm maximum.

25.2 Distance athwartships between centres of pin holes in opposite shroud plates. 1580 plus or minus 15mm.
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26.0 BUILDING PLAQUE
26.1 Position. The building plaque shall be fixed in a conspicuous position on the hull.

26.2 Class numbers. The sail/serial number of the boat shall be stamped on the plaque in numbers of minimum height 3 mm.

26.3 Removal. Shall invalidate the boat's Certificate.
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SECTION VI -HULL WEIGHT CONTROLS

27.0 HULL WEIGHT
27.1 Condition during weighing.
a) All exterior and interior surfaces shall be dried, to the satisfaction of the measurer.
b) No fitting shall be weighed with the hull unless it is securely bolted, screwed, bonded or otherwise fixed to the boat as permanent equipment to be carried when racing. Fittings not listed in Rule 27.1c and Rule 27.ld shall not be included in the measured weight.
c) Items which shall be included during weighing:
Centreboard, hatch covers, foam buoyancy required by Rule 36.5, bow plate, centreboard pivot bolt, mast step, rudder hangings, sheet horse, shroud plates, stem band and keel band (see Rule 17.5).
d) Items permitted to be included during weighing:
Mast pivot pin, rigidly attached sheet fairleads, mooring and forestay cleats, two selfbailers, cleats or eyes for fastening covers or securing oars or anchor or motor, toe straps with fittings, fendoff, fixed metalwork and fittings, clamps or turnbuttons for attaching floorboards or hatches.
e) Items excluded from measured weight:
Floorboards, detachable blocks, sheets, rudder, tiller, spars, bilge keel bands and additional main keel band (see rule 17.5).

27.2 Minimum weight in conditions specified in Rule 27.1 129 kg

27.3 Weight correction. Hulls weighing less than 129 kgs in the conditions specified in Rule 27.1 shall be made up to the required minimum weight by weight correctors of any material, but of total weight not exceeding 5.0 kg. Weight correctors shall be fastened to the underside of the centre thwart.

27.4 Reduction of weight correctors. Shall not be permitted without an official re-weighing.

27.5 Record of weight correction. Weight correctors shall be weighed separately and their weight entered on the measurement form.

27.6 Changing weight. Any permitted alteration to the hull or fittings resulting in a change in weight shall require an official re-weighing.
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