Class Rules

YARE & BURE ONE DESIGN

Class Rules 2010 (“the Rules”)

(Adopted 12th November 2010)

CONTENTS

  1. General

  2. Control and Management of the Class

  3. Building into the Class

  4. Construction and Measurement Rules

Part 1: Sails

Part 2: Common Specification

Part 3. Wooden YBOD’s

Part 4: GRP YBOD’s

Appendices:

A. Rigging

B. Spars

C. Fittings, Equipment and standard items

D. Specification for Wooden YBOD’s

E. Specification for GRP YBOD’s

1. General

    1. The object of the class is to promote and control the Yare & Bure One Design (“YBOD”) as a one-design class suitable for casual sailing and inexpensive competition on the Norfolk and Suffolk Broads.

1.2 Unless the Rules specifically permit variations and/or tolerances then all YBOD’s shall be the same in hull and deck shape, fittings, spars, rigging, sail plan, weight and weight distribution.

1.3 These Rules are to be read in conjunction with, and are deemed to include:

  • The Appendices

  • The lines drawing, the spars drawing and the sail plan (1999 revision) all as held by the Class Secretary (‘the Plans’)

but in the event of any discrepancy the written text in sections 1 – 4 shall have priority over the Plans and Appendices and the Appendices shall have priority over the plans

1.4 It is an owner’s responsibility to ensure that his YBOD is maintained in accordance with these Rules and a YBOD that does not comply with the Rules is automatically ineligible to compete in any class racing

1.5 In interpreting the Rules the word ‘shall’ indicates a mandatory requirement whilst the word ‘may’ is permissive.

    1. In these Rules:

      1. any reference to an ‘owner’ of a YBOD shall (unless the contrary is indicated) include reference to part owners of a YBOD, and

      1. the masculine shall include the feminine and the following words or expressions shall unless the context otherwise requires have the following meanings:

‘Officers’

Means the Class Captain Vice Captain and Class Secretary

‘Committee’

Means the committee referred to in Rule 2.1

‘AGM’

Means the meeting of YBOD owners convened under Rule 2.2

‘Complete Hull’

Means a complete YBOD with all mandatory fittings and equipment except for the mast, gaff, boom standing and running rigging and sails

“Moulding Weight”

Means the weight (rounded down to the nearest kilogramme) of the hull and deck moulding immediately after they have been removed from the mould(s) including the

  • sailing beam integral to deck moulding

  • moulded in floors in way of the keel bolts

  • moulded GRP bulkhead

  • moulded in fixings for the forward bulkhead, tabernacle block, tabernacle bulkhead, hanging knees, seats and shelf, aft bulkhead.

‘Scrutineers’

Means the Scrutineers elected in accordance with Rule 2.3

‘Sail Measurer’

Means the sail measurer elected in accordance with Rule 2.3

    1. The interpretation and enforcement of these Rules are matters within the sole and unfettered discretion of the Committee.

1.8 Any changes of these Rules shall only be made by a majority decision of the members present at a quorate AGM taken after written notice of the substance of the changes has been given to all owners either with the notice convening the meeting or in a separate notice circulated to owners at least 14 days before the relevant meeting.  Any amendment to the proposed changes to be given to the Secretary 7 days prior to the meeting save that the Class Captain may permit an amendment to be proposed and voted upon without such written notice having been given to owners if the Class Captain is (in his absolute discretion) satisfied that the effect of the amendment is only to correct an obvious mistake or to clarify an existing or proposed provision (without altering its substantive effect).

1.9 Where under these Rules any notice is required to be given by or on behalf of the Class in writing to an owner it is sufficient for it to be sent by electronic mail to the last known electronic mail address of the owner and proof of transmission shall be deemed to be proof of receipt on the day of transmission.

1.10 the Committee shall have power:

1.10.1 to draw cheques, operate bank accounts, and raise money for the object of the class on such terms mandates and security as may be thought fit provided always that any borrowing shall only be upon terms that the lender has recourse only to the funds and assets from time to time under the control of the Class and such borrowing is therefore without wider personal liability on the part of the Committee and/or owners within the class,

1.10.2 to do all such other lawful things as are necessary for the attainment of the object of the class.

1.11 A YBOD shall not be out of the water for more than 6 hours during the 48 hours prior to the start of a race.

    1. If reefing is ordered by the organising club it shall be mandatory.  The number of reefs will be indicated by cones under class flag “V” as follows:

  • 1 Cone: One reef

  • 2 Cones: Two reefs and storm jib

  • 2 Cones (lower one reversed): Three reefs and storm jib.

1.13 All YBOD’s shall be bear the name of a British butterfly or moth taken from the “Checklist of the British Lepidopteria with the English name of each of the 2299 Species” such name to be approved by the Committee before first use.

2. Control and Management of the Class

2.1 The control and management of the class shall be vested in a committee of not more than eight (8) including the Officers (all of whom except the Class Secretary must be owners of a YBOD).

    1. The Committee including the Officers shall (subject to Rule 2.7) be elected annually by show of hands at a general meeting of YBOD owners to be convened by the Committee and held between 1st October and 31st November in each calendar year on not less than 14 days written notice to all owners.  Owners seeking election to the Committee shall be nominated by the Committee or (if not nominated by the Committee) shall give the Class Secretary written notice of their intention to seek election on or before the 14th of September in the relevant year.

    1. The AGM shall (subject to Rule 2.7) elect annually by a show of hands:

  • a Sail Measurer

  • up to 4 Scrutineers

  • an Official Sailmaker

Any incumbents do not require nomination if seeking re-election.   New or alternative candidates for the posts referred to in this Rule 2.3 shall be nominated either by the Committee or in writing signed by at least 4 owners, such nomination to be received by the Class Secretary on or before the 14th of September in the relevant year.

    1. The Committee may continue to act notwithstanding a vacancy in their number so long as their number does not drop below 4, which shall also be the quorum for their meetings.   The Committee shall have power to fill any casual vacancy in their own number such appointment to take effect until the next AGM.

2.5 All general meetings of YBOD owners other than the AGM shall be called extraordinary general meetings.  An extraordinary general meeting of YBOD owners may be convened by the Committee at any time and shall be convened by the Class Secretary upon receipt of a written request to do so signed by not less than 15 YBOD owners giving sufficient particulars to allow the Class Secretary to comply with Rule 2.6 and in either case upon not less than 14 days written notice.

2.6 Any notice of general meeting shall specify the day place and hour of the meeting and an indication in sufficient detail so as not to be misleading of the nature of the business to be considered.

    1. The quorum at any general meeting shall be 20 YBOD owners entitled to vote.  At the direction of the Class Captain or at the request of not less than 10 YBOD owners any issue to be determined at a general meeting shall (instead of being by show of hands) be decided by a secret ballot held amongst the owners present at the meeting adopting such procedure as the Class Captain may in his absolute discretion decide.

2.8 The class may at any general meeting and in its absolute discretion impose any formal requirement in relation to membership including the imposition of any fee, subscription, levy or other payment and it may vary the same.

2.9 Subject to Rule 1.9 it shall be sufficient for the Class Secretary to give notice of a general meeting by ordinary second class post to the address held for such purposes and the accidental failure to give notice to or the non-receipt of notice by a person entitled to receive notice shall not invalidate the proceedings at that meeting.

2.10 It is the responsibility of YBOD owners to keep the Class Secretary advised in writing of a current correspondence address for each YBOD and where there are joint owners it is sufficient for any notice or other correspondence to be sent to the owner of record (see 2.11 below).   Any change in ownership (including as to part ownership) of a YBOD shall be notified to the Class Secretary in writing by both the old and new owners.

2.11 There shall not be more than 2 owners of each YBOD and if there are 2 owners they must in writing jointly nominate to the Class Secretary which of them is to be considered the owner of record.   Where there are 2 owners of a YBOD only one (to be decided from time to time between themselves) is entitled to vote at general meetings of the class.

3. Building into the Class

3.1 No YBOD may be built otherwise than by a builder approved by the Committee in accordance with Rule 3.2 (an “Approved Builder”).

    1. Before any steps are taken to build into the class a prospective owner shall notify the Class Secretary in writing of the builder he proposes to use and shall apply in writing to the Committee:

  • (in the case of a wooden boat) to hire the moulds and patterns owned by the class or (in the case of a GRP boat) to hire the moulds owned by the class and in either case paying in advance such hiring fee and such scrutineering fee as the Committee may from time to time determine, and
  • for approval of the proposed builder, and
  • in the case of a GRP boat for approval of the proposed moulder.

    1. The Approved Builder is responsible for ensuring any boat complies with these Rules in all respects and shall supply the Class Secretary with:

  • a written builders declaration stating that it complies with all relevant Rules, and

  • evidence in writing that the weight of the ballast keel conforms with paragraph 3 of Appendix C, and

  • evidence in writing of the weight (rounded down to the nearest kilogramme) of the Complete Hull, and

  • in the case of a GRP boat evidence in writing of the Moulding Weight

and in all cases the weights required by this rule shall be taken using a load cell approved by the Scrutineers

    1. The Approved Builder is responsible for ensuring that a boat in build is inspected by a Scrutineer at the following stages of construction:

  • With a GRP YBOD the Approved Builder shall arrange for a Scrutineer to witness both the weighing exercises referred to in Rule 3.3 and inspect the boat in build at the same time

  • With a wooden YBOD the Approved Builder shall arrange for a Scrutineer to inspect the boat in build:

  1. when the hull has been planked and before any part of the deck is fitted, and

  1. immediately after the deck and coamings have been fitted.

  • With a wooden YBOD an Approved Builder shall arrange for a Scrutineer to witness the boat being weighed when the Complete Hull is weighed to provide the evidence of weight required by Rule 3.3

  • With both wooden and GRP YBOD’s the Approved Builder shall arrange for a Scrutineer to:

(a) inspect the keel when it has been fabricated but before the sections have been bolted together and it has been fitted to the hull, and

(b) witness the ballast keel being weighed to provide the evidence of weight required by Rule 3.3

and if he fails to do so the boat shall (unless the Committee give a written waiver) automatically be deemed out of class.   When a YBOD has been inspected by a Scrutineer at all relevant stages the Committee will assign the YBOD a number and invite the first owner to submit the name for approval in accordance with Rule 1.10

3.5 The Approved Builder is responsible for ensuring that a new YBOD complies with the Recreational Craft Directive.

4. Construction and Measurement Rules.

Part 1: Sails

4.1 Permitted sails consist only of:

  • A mainsail

  • A jib

  • A storm jib

and shall only be made by the Official Sailmaker for the time being.

4.2 White sails only are allowed, and the only insignia etc. to be affixed to the sails are the sail numbers and a logo of the Official Sailmaker in each case complying and positioned in accordance with the ISAF Racing Rules of Sailing

4.3 All sails made after the adoption of these Rules shall be made to the measurements specifications and materials shown in the Plans.

4.4 The Sail Measurer may at his discretion or at the direction of the Committee require any YBOD sail (whether new or not) to be measured to ascertain whether it is in compliance with these Rules.

4.5 The tack and the clew of the mainsail shall not be adjusted during a race.

Part 2: Common Specification

4.6 The Rules in this Part 2 of Rule 4 apply equally to both wooden and GRP YBOD’s.

4.7 All YBOD’s shall be painted or coloured white as to their topsides (except for a varnished transom and a cove line).   Boot toppings of a separate colour are not permitted.

4.8 All rigging shall be in accordance with Appendix A.

4.9 Permitted spars consist only of:

  • Mast

  • Gaff

  • Boom

  • Bowsprit

As detailed in Appendix B.

4.10 The fittings and equipment of all YBOD’s shall comply with Appendix C.    Fittings and equipment which may be used to control any part of the standing or running rigging sails or spars in any phase of sailing that are not specifically permitted by these Rules are prohibited and any YBOD that has such fittings and equipment installed will automatically be deemed out of class

4.11 A Scrutineer may at his discretion or at the direction of the Committee require any YBOD to be inspected and/or measured and/or weighed to ascertain whether it is in compliance with these Rules.   If a YBOD (whether new or not, but subject to Rule 4.17) is found to have a Complete Hull weight not more than 15kg below that specified in Rule 4.13 or 4.16 and the Committee has in its sole and unfettered discretion given its prior written consent then it may be brought within the Rules by permanently fastening lead corrector weights in 2 locations on the centre line of the boat:

  • 50% of the required weight immediately aft of the rudder post , and

  • 50% of the required weight in the forepeak, abutting the forward face of the fixed bulkhead

and such YBOD shall only remain in class whilst such corrector weights remain permanently affixed in such locations and for the avoidance of doubt corrector weights must not be installed (whether permanently or temporarily) in any other location in the YBOD.

Part 3: Wooden YBOD’s

4.12 A wooden YBOD shall be:

  • of carvel construction, and

  • built and/or maintained strictly in  accordance with the Plans and Appendix D, and

  • built only using the moulds and patterns owned by the class or copies of such moulds and patterns authorised by a Scrutineer.

4.13 The Complete Hull weight of a wooden YBOD shall not be less than 600 kg provided always that this Rule will not apply to a YBOD built before 31st December 2003.

4.14 Above the waterline epoxy may be used to glue up the plank seams only and may not be used to coat the external surface of the planks.

Below the waterline epoxy:

4.14.1 shall not be used to glue up the plank seams.

4.14.2 may be used as a coating on one side only of the hull planking

4.14.3 may used to seal the external surfaces of the keel

Part 4: GRP YBOD’s

 

4.15 A GRP YBOD shall be built strictly in accordance with Appendix E and shall only be laid up by the moulder approved pursuant to a request under Rule 3.2 using the hull and deck moulds owned by the class.

4.16.1 The Moulding Weight of a GRP YBOD shall be 250kg (with a tolerance of +/- 5kg) provided always that this Rule 4.16.1 will not apply to a YBOD built before 30th September 2010.

4.16.2 The Complete Hull weight of a GRP YBOD shall not be less than 600 kg provided always that (unless Rule 4.17 is applied) this Rule 4.16.2 will not apply to a YBOD built before 31st December 2003.

4.17 A GRP YBOD built before 30th September 2010 which has corrector weights in locations other than those stipulated in Rule 4.11 may (subject to subsequent scrutineering and provided the resulting weight of the Complete Hull is then not less than 600kg) but is not required to, relocate its corrector weights so as to comply with Rule 4.11.

    1. GRP YBOD’s may use epoxy to seal the external surfaces of the keel.

Appendix A

COMMON RIGGING SPECIFICATION FOR BOTH WOODEN AND GRP YBOD’s

All items are mandatory unless an option is indicated and shall be carried on the boat and/or fitted during racing.

 

 

1.

 

Shrouds:

 

Not less than 4mm diam. galvanised or stainless steel 7x 7 wire rope or 1 x 19 stainless steel wire affixed to the chain plates with bottle screws or rope lacings.

 

 

2.

 

Forestay:

 

Not less than 4mm diam. galvanised or stainless steel 7x 7 wire rope or 1 x 19 stainless steel wire, with a polyester or similar rope tail, 6mm diam. minimum to be fastened off to the pin rail

 

3.

 

Throat Halyard:

 

Not less than 4mm diam. galvanised or stainless steel flexible wire rope and not less than 8mm polyester or similar rope downhaul arranged with a purchase. As an option the rope downhaul may be augmented with a separate block and tackle capable of adjustment whilst sailing.  One end of any such block and tackle shall be affixed to the tabernacle and the other end to the lower block on the rope downhaul provided that in any event the rope downhaul and (if fitted) secondary block and tackle shall not be arranged so as to apply an overall mechanical advantage exceeding 8:1

 

4.

 

Peak Halyard:

 

Not less than 4mm diam. galvanised or stainless steel flexible wire rope and 8mm polyester or similar rope downhaul arranged with a purchase not exceeding 2:1, to be fastened off:

  • to a figure of eight cleat on the tabernacle, or on the mast below the mast pin, or
  • to the pin rail
 

5.

 

Jib Halyard:

 

Polyester or similar rope of not less than 8mm.   One end to be affixed within the cheek block at the top of the mast and arranged with a purchase not exceeding 2:1, to be fastened off:

  • to a figure of eight cleat on the tabernacle, or on the mast below the mast pin, or
  • to the pin rail
 

4.

 

Gaff Span:

 

Not less than 4mm diam. galvanised, stainless steel or similar wire rope.

 

5.

 

Throat Bridle:

 

Not less than 4mm diam. galvanised, stainless steel or similar wire rope.

 

6.

 

Bobstay:

 

 

Not less than 5mm diam. galvanised, stainless steel or similar wire rope which may be tensioned with a bottle screw or rope lacing.

 

7.

 

Jib Outhaul (Optional)

 

Not less than 5mm diam. galvanised or stainless steel wire rope, with a polyester or similar rope tail.

 

8.

 

Topping Lift:

 

Polyester or similar rope halyard of not less than 8mm (a purchase is optional) and with a 4mm topping lift tail passing through both cheek blocks at the top of the mast.

 

9.

 

Main Sheet:

 

Polyester or similar rope not less than 8mm.  Rope must be predominately white, flecks are permissible.  A ratchet block is a permitted option.

 

10.

 

Jib Sheets:

 

Polyester or similar rope not less than 8mm.  Rope must be predominately white, flecks are permissible.  It is optional to arrange them with a 2:1 purchase.  Ratchet blocks and jamming cleats also optional.

Appendix B

SPECIFICATION OF SPARS FOR BOTH WOODEN AND GRP YBOD’s

All items are mandatory unless an option is indicated.

 

1.

 

Mast:

 

To be made to the dimensions shown on the Plans from either a grown pole or not more than 4 laminations of Columbian pine aligned fore and aft.   To be fitted with 2 mast cheeks and a masthead button.

 

2.

 

Boom:

 

To be made to the dimensions shown on the Plans from solid softwood timber either a single piece or of not more than 4 laminations, all laminations to be aligned vertically and be of the same type of timber. The following are options:

  • lacing bridge (timber)
  • cleats for reefing
  • an outhaul arrangement including a cleat and/or a sliding track (see Rule 4.5)

 

 

3.

 

Gaff:

 

To be made to the dimensions shown on the Plans from solid softwood timber either a single piece or of not more than 4 laminations, all laminations to be of the same type of timber.

 

Gaff jaws to made from oak aluminium or gun metal

 

 

4.

 

Bowsprit:

 

To be made from Columbian Pine or Ash or Oak as per the Plans with eyebolts (for standard and storm jibs) or outhaul for the jib tack.

 

Appendix C

FITTINGS AND EQUIPMENT FOR BOTH WOODEN AND GRP YBOD’s

 

All items are mandatory unless an option is indicated and shall be carried on the boat and/or fitted during racing.

 

 

1.

 

Burgee / Wind indicator:

 

A wind indicator may be fitted at the masthead only.  A burgee may be flown on either or both of the masthead or the end of the gaff.

 

2.

 

Whisker pole:

 

Shall be made of timber fitted with a yoke at one end and a metal spike at the other and shall be no longer than 2.5m such measurement to be taken from the point where the yoke or pole will touch the mast but not to include any visible part of the spike (i.e. between bearing surfaces).  As an option a small rope loop may be added to the clew of jib into which the spike may be threaded when the whisker pole is used.

 

3.

 

Ballast Keel:

 

Shall be cast from solid lead to a pattern approved by the Scrutineers and weigh 178.2 kg +/- 4kg

 

4.

 

Keel Bolts:

 

3 x 20mm full-length bolts and 2 x 8mm bolts to be made form steel or stainless steel or wrought iron.

 

5.

 

Rudder:

 

5/32in. or 4mm galvanised mild steel or stainless steel shaped as per drawing.   The rudder shaft to be 1in. diam.

 

6.

 

Rudder Trunk:

 

Galvanised iron or stainless steel tube or GRP trunk 15/16in. external diam and 11/16in. internal diam. or metric equivalents.

 

7.

 

Tiller:

 

Galvanised iron or chromed bronze. Shaped as per drawing.

 

8.

 

Heel Iron:

 

Galvanised or stainless steel

 

9.

 

Gammon Iron:

 

Galvanised or stainless steel

 

10.

 

Chain Plates:

 

Galvanised or stainless steel

 

11.

 

Gooseneck:

 

Galvanised or stainless steel

 

12.

 

Mainsheet Horse:

 

Galvanised or stainless steel

 

13.

 

Mooring Ring (foredeck):

 

Galvanised or stainless steel

 

14.

 

Bobstay Bolt:

 

Galvanised or stainless steel

 

15.

 

Sheaves:

 

  • 11/4in. diam. sheaves (galvanised or stainless steel) for jib outhaul (optional), mast hounds, and jib sheet fairleads, and
  • 11/2in. diam. jib halyard sheave (galvanised or stainless steel) for mast hound.
 

16.

 

Rudder Deck Plate and Collar:

 

Bronze or chromed bronze or stainless steel

 

17.

 

Cleats:

 

Bronze or chromed bronze or stainless steel

 

18.

 

Rigging screw bodies:

 

Bronze or chromed bronze or stainless steel

 

19.

 

Bowsprit Cap:

 

Bronze or chromed bronze or stainless steel

 

20.

 

Fairleads:

 

Only one pair to be fitted not adjustable fore and aft

 

21.

 

3 Hatch fasteners:

 

Bronze or chromed bronze or stainless steel

 

22.

 

Coamings:

 

Mahogany. Sided 5/8in. moulded 5in. as per pattern.

 

23.

 

Floorboards:

 

Redwood.  Sided 9/16in. moulded as per Plans. Plywood not permitted.

 

24.

 

Rubbing Strakes:

 

Mahogany or oak.  Sided 11/8in. moulded 7/8in.

 

25.

 

Toe Rails:

 

Mahogany. Sided 5/8in. moulded 3/4in.

 

26.

 

Side Benches:

 

Oak.  Splines sided 7/8in. as per Plans.

 

27.

 

Tabernacle:

 

Oak.  Sided 1in. moulded 4in. shaped as per plans.

 

 

Appendix D

SPECIFICATION RELATING TO WOODEN YBOD’s

 

All items are mandatory unless an option is indicated.

 

 

1.

 

Stem:

 

Oak, grown crook, or laminated.  Sided 3in. Moulded as per Plans.

 

2.

 

Keel:

 

Redwood.  Sided 3in. at top, tapering to 2in. at bottom and moulded as per Plans.

 

3.

 

Hog:

 

Oak or Pitch pine sided 11/2in. moulded 6in.

 

4.

 

Transom:

 

Mahogany.  Sided 1in. moulded as per Plans.

 

5.

 

Planking:

 

Redwood 9/16in.finished thickness, caulking seams to be formed on plank edges.

 

6.

 

Timbers:

 

Oak sided ?in moulded ?in spaced at 7in centres.

 

7.

 

Beams (main):

 

Oak. 2in. x 2in. and 2ft x 21/4in.

 

8.

 

Beams (side deck):

 

Oak.  Sided 1in. moulded to suit.

 

9.

 

Decks:

 

12mm B.S. 1088 Marine Plywood or 11/16in. tongue and groove Redwood.

 

10.

 

Gunwales:

 

Oak or Columbian pine.  Sided 5/8in. moulded 11/2in.

 

11.

 

Carlings:

 

Columbian pine.  Sided 11/2in. moulded 11/4in

 

12.

 

Bulkheads (at main beams):

 

Mahogany.  Sided 5/8in. moulded to suit.

 

13.

 

Bulkhead Frames:

 

Mahogany or oak.  Sided 7/8in. moulded to suit.

 

14.

 

Bulkhead (forward):

 

12mm BS1088 Marine Plywood or 1/2 in. T.G.V.  Redwood matching.

 

15.

 

Floors:

 

Oak.  Sided 2in. moulded to suit.

 

16.

 

Floor Rising:

 

Oak.  Sided 3/4in. moulded 1in.

 

17.

 

Deck Covering

 

Either:

  • Treadmaster or
  • Linoleum or
  • Trakmark or
  • 600g (min) woven mat and epoxy resin to be painted with a minimum of two coats of cream grey or brown.

 

The Treadmaster Linoleum or Trakmark may also be painted in the same colours as are specified for the epoxy covering

 

Appendix E

SPECIFICATION RELATING TO GRP YBOD’s

 

All items are mandatory unless an option is indicated.

 

 

1.

 

Hull:

 

To consist of a GRP lay-up consisting of:

  • the gel coat,
  • 2550g/sq.m (8.5oz/sq.ft) chopped strand mat

 

From the stem all along the centre line the lay-up to be doubled to  5100g/sq.m (17oz/sq.ft) extending 180mm each side of the centreline and further increased to 6000g/sq.m (20oz/sq.ft) above the keel.

 

Pine sole bearers to be over bonded with 1200g/sq.m (4oz/sq.ft) chopped strand mat

 

50mm flanges to be formed in way of the bulkheads from a laminate of 2400g/sq.m (8oz/sq.ft) chopped strand mat

 

The transom to be mahogany sided 1 inch.

 

The exterior of the hull below the waterline may be treated with a proprietary anti-osmosis treatment

 

2.

 

Decks:

 

To consist of a sandwich made up of:

 

  • a gel coat, to be painted with a minimum of two coats of cream grey or brown.
  • 1200g/sq.m (4oz/sq.ft) chopped strand mat
  • 12mm end grain balsa core
  • 900g/sq.m (3oz/sq.ft) chopped strand mat

 

with core to be replaced with 12mm BS 1088 plywood in way of all deck fittings and omitted at the edges of the deck in the way of the hull/deck connection

 

 

3.

 

Bulkheads:

 

The forward bulkhead to consist of a sandwich (glassed in with 50mm. flanges from both sides) consisting of:

  • gel coat (installed facing aft),
  • 900g/sq.m (3oz/sq.ft) chopped strand mat
  • an “H” shaped core of 12mm. foam (the “H” installed vertically)
  • 600g/sq.m (2oz/sq.ft) chopped strand mat

 

The bulkhead adjacent to the tabernacle to be 7/8 inch sided mahogany

 

The centre cockpit bulkhead to be 7/8 inch sided oak bonded to the hull with 4oz chopped strand mat.

 

The aft bulkhead to be 3/4 inch mahogany to be fitted with a 7/8 inch mahogany surround.

 

All timber bulkheads to be screwed and glued to the appropriate hull flange