|
|
1. |
GENERAL PRINCIPLES |
| 1.1 |
One-Design |
| |
The H-Boat is a one-design class.
Except where variations are specifically permitted, boats of this
class shall be alike in: hull, deck and keel form, construction, weight and
weight distribution; shape of rudder and sails.
All boats shall be built
in accordance with these class rules and the plans. Deviations from the plans
are permitted for spars, standing and running rigging, sheeting arrangements,
rudder stock bearings, tiller and tiller extension, lifting eyes, fittings on
deck, details of hatches and certain parts of the accommodation. These items
shall comply with the rules.
All boats, in respect of hull, deck, keel
and rudder form and construction and spars, shall comply with either the current
class rules, or the corresponding rules applying to them at the time the first
measurement certificate was issued. Any alterations or replacements shall comply
with the rules current at the time the alterations or replacements are
made.
Sails shall comply with the current rules.
Interpretations
of these rules shall be made by the ISAF which in coming to its decision may
consult the International H-Boat Class Association and the original
plans.
|
| 1.2 |
These rules are complementary to, and
shall be read in conjunction with, the plans measurement form and measurement
diagram.
|
| 1.3 |
In the event of discrepancy between
these rules, the measurement form and/or the plans, the matter shall be referred
to the ISAF.
|
| 1.4 |
Administering
Authority
|
| 1.4.1 |
The international authority for the
class shall be the ISAF which shall co- operate with the International H-Boat
Association in all matters regarding these rules.
|
| 1.4.2 |
In countries where there is no National
Authority or the National Authority does not wish to administer the class, its
functions as stated in these rules shall be carried out by the International
H-Boat Association or its delegated representative (National H-Boat
Association).
|
| 1.5 |
Neither the ISAF nor the International
H-Boat Association accept any legal responsibility in respect of these rules
and/or the plans, or any claims arising
therefrom. |
|
2. |
ADMINISTRATION |
| 2.1 |
English
Language
|
| 2.1.1 |
The official language of the class is
English and in the event of dispute over interpretation the English text shall
prevail.
|
| 2.1.2 |
The word "shall" is mandatory and the
word "may" is permissive.
|
| 2.2 |
Licensed Builders
The
H-Boat shall be built only by builders licensed to do so by the ISAF.
Applications for licences shall be made to the International Yacht Racing Union
which may issue a licence to a builder considered to have appropriate production
facilities, knowledge and experience and to be able to fulfil such other
conditions as the ISAF may deem necessary. A licensed builder shall be required
to bind himself to comply with the class rules, plans, specifications and
measurements.
|
| 2.3 |
International class
FEE
An International Class Fee (ICF) shall be paid by the builder to
the ISAF for each boat built. As evidence of payment of the International Class
Fee the ISAF shall issue an official plaque.
|
| 2.4 |
Registration and Measurement
Certificate
|
| 2.4.1 |
No boat is permitted to race unless it
has an valid measurement certificate.
|
| 2.4.2 |
ISAF Plaque. The ISAF Plaque shall be
obtained by the builder before the boat leaves his yard. The plaque will carry
an ISAF serial number. The builder shall insert on the plaque the builder's
name, serial number of plug and mould. The plaque shall be fixed to the hull in
an permanent manner in the position indicated in rule 2.7.1 (see also plan no.
A.3.4)
|
| 2.4.3 |
The certificate is obtained as
follows: The owner applies to his National Authority for a sail number giving
the ISAF Plaque number and the builder's name. The National Authority shall
issue a sail number only on receipt of these details as evidence that ICF has
been paid. Each country shall start its numbering from "one", and each number
shall be used once only. The boat shall be measured by an official measurer
recognised by the National Authority of the country in which measurement takes
place. The completed measurement form shall be supplied to the owner of the
boat. The owner shall send the completed measurement form to his National
Authority together with any registration fee that the National Authority
requires. On receipt of this the National Authority may issue a Measurement
Certificate to the owner.
|
| 2.4.4 |
Change of ownership invalidates the
Measurement Certificate but shall not necessitate remeasurement. The owner may
apply to his National Authority for a new certificate, returning the old
certificate with any re-registration fee that may be required and stating the
necessary particulars. The National Authority may then issue a certificate to
the new owner.
|
| 2.4.5 |
It is the owner's responsibility to
ensure that his boat, spars, sails and equipment comply with the class rules at
all times.
|
| 2.4.6 |
Changes and major repairs to the boat,
its spars, or equipment invalidate the certificate and require partial
remeasurement as the official measurer may determine.
|
| 2.4.7 |
Notwithstanding anything in these
rules the ISAF or the National Authority shall have the power to withdraw or to
refuse to grant a certificate to any boat.
|
| 2.5 |
Measurement
|
| 2.5.1 |
Only a measurer officially recognised
by the builder's or the owner's National Authority shall measure a boat, its
spars, sails and equipment and sign the declaration on the measurement
form.
|
| 2.5.2 |
Tolerances are given in these rules
and corresponding drawings to permit minor building errors or distortion through
age.
|
| 2.5.3 |
The measurer may take supplementary
measurements in order to satisfy himself that the boat is in accordance with the
class rules. If the measurer considers that there is a departure from the one
design construction or these rules in any detail the National Authority shall be
informed. In such a case the National Authority shall not issue a Measurement
Certificate until the case has been investigated and any necessary corrections
have been made.
|
| 2.5.4 |
All boats shall be measured using the
official templates supplied by the ISAF.
|
| 2.5.5 |
New or substantially altered sails
shall be measured by an official measurer who shall stamp affix a licensed
button or sign and date the sails near the tack.
|
| 2.5.6 |
A measurer shall not measure a boat,
its spars or equipment owned or built by himself, or in which he is an
interested party or has a vested interest. Sails may be measured by sailmakers
licensed by their National Authority.
|
| 2.6 |
ISAF Measurement
Instructions
Except where other methods of measurement are
specifically indicated all measurements shall be carried out in accordance with
the ISAF Measurement Instructions.
|
| 2.7 |
Identification
Marks
|
| 2.7.1 |
The ISAF plaque shall be permanently
fixed to the bulkhead at the forward end of the starboard side cockpit locker so
that it can be clearly seen through the cockpit hatch.
|
| 2.7.2 |
Sail numbers shall be carried on the
mainsail and spinnaker in accordance with rule
3.6.1.3. |
|
3. |
CONSTRUCTION AND MEASUREMENT
RULES |
| 3.1 |
Moulds
A master mould owned by the Finnish
Yachting Association is available for obtaining plugs. This master mould shall
be used unless permission not so to do has been given by ISAF.
In such a case a plug shall be made
which shall be within tolerances which are one half of those for a completed
boat and it shall be approved by the ISAF Chief Measurer before manufacture of
moulds is commenced.
Before production is started at the
builder's premises the production moulds shall be checked and approved by an
official measurer recognised by the builder's National
Authority.
|
| 3.2 |
Hull
|
| 3.2.1 |
The hull, including the deck, cabin,
cockpit, hatches and inner hull moulding shall, unless otherwise stated, be for
glass reinforced plastic (grp) and shall be built according to the plans and the
laminate specification in Appendix 1.
|
| 3.2.2 |
The deck moulding without fittings or
hatches shall not weigh less than 180kg. It shall be laminated to be of uniform
thickness.
|
| 3.2.3 |
Hull measurements shall be taken in
accordance with, and shall be within the limits shown on the measurement diagram
and the measurement form.
|
| 3.2.4 |
The accommodation shown on the plan is
the minimum that is required. Two shelves above the aft berths,
galley and locker, hatches in the cabin sole and fiddles of wood around the
berths are compulsory.
Additional accommodation may be
installed but the centre of gravity of the complete hull shall not be lowered as
a result of this.
The design and location of the galley
and locker may be changed subject to prior written approval being obtained from
ISAF.
A full bulkhead with a hatch or a
semi-bulkhead may be fitted forward of station 9.5. The minimum thickness shall
be 6mm for plywood or 4mm for GRP.
|
| 3.2.5 |
The forecastle hatch and a cabin
companionway hatch, hatches in the cockpit seats and a hatch for the aft stowage
space are compulsory.
|
| 3.2.6 |
A well for an outboard motor may be
fitted in the aft stowage space.
|
| 3.2.7 |
Lifting eyes may be permanently
fastened to two keel bolts. The total weight of the eyes shall not exceed
4kg.
|
| 3.3 |
Keel
|
| 3.3.1 |
The keel shall be of cast
iron.
|
| 3.3.2 |
The keel may be galvanised and/or
covered with any synthetic material.
|
| 3.3.3 |
The weight of the keel shall be 725kg
+ 10kg including any coating.
|
| 3.3.4 |
The keel shall be fastened to the hull
by seven 16mm diameter stainless steel or galvanised steel
bolts.
|
| 3.3.5 |
The shape of the keel including any
coating shall be controlled using the official templates.
|
| 3.3.6 |
The aft end of the keel shall have a
square edge. The minimum width shall be 5mm, the maximum 8mm (see plan
A1.3).
|
| 3.4 |
Rudder
|
| 3.4.1 |
The rudder shall be of grp and
constructed in accordance with the plans and the
specification.
|
| 3.4.2 |
The rudder stock shall be of 25mm
diameter solid stainless steel.
|
| 3.4.3 |
A bearing of phenolic laminate
(such as Tufnol) or equivalent material shall be fitted to the rudder stock
trunk at deck level.
|
| 3.4.4 |
A bearing of bronze or of
stainless steel shall be fitted to the lower part of the skeg.
|
| 3.4.5 |
The rudder stock shall be in the
position indicated on the measurement diagram and shall be
vertical.
|
| 3.4.6 |
The tiller and tiller extension
are not controlled by these rules.
|
| 3.4.7 |
The aft end of the rudder shall
have a square edge. The minimum width shall be 4mm (see plan
A3.3).
|
| 3.5 |
Spars
|
| 3.5.1 |
Materials
The mast, boom and
spinnaker boom shall be of aluminium alloy containing not less than 90%
aluminium.
|
| 3.5.2 |
Mast and Standing
Rigging
|
| 3.5.2.1 |
The mast shall be stepped on the
cabin top on the centreline of the boat.
|
| 3.5.2.2 |
The forward face of the mast shall
be 843mm + 40mm aft of station 8.
|
| 3.5.2.3 |
Two easily discernible marks, each
not less than 42mm x 20mm, shall be painted on the deck so that the forward edge
of the aft marks and the aft and the aft edge of the forward mark indicate the
permitted limits for the location of the forward face of the
mast.
|
| 3.5.2.4 |
The mast shall be an aluminium
alloy extrusion. The section shall have the following dimensions: fore and aft 125mm + 10mm
including the groove for the luff rope
athwartships 90mm + 10mm
The radius of the leading edge
shall not be less than 20mm and the point of maximum width of the section shall
not be less than 40mm from the forward or aft edge of the
mast.
The wall thickness
of the extrusion shall not be less than 1.5mm nor more than 5,0
mm.
|
| 3.5.2.5 |
The weight of the plain extrusion
shall not be less than 2.20kg/m.
|
| 3.5.2.6 |
The mast shall be straight and of
constant section except as permitted below:
Above the attachment point of
the forestay the mast may be tapered in accordance with the plan; The luff
groove may be cut away to provide entry for the mainsail bolt rope; The mast may
be reinforced with an internal sleeve below measurement band number 1.
A
permanent set, due to distortion not exceeding 42mm between the upper and lower
measurement bands shall be permitted.
|
| 3.5.2.7 |
Measurement bands, not less than
10mm wide, which shall be clearly discernible while racing shall be painted or
otherwise permanently marked on the mast as follows:
No 1 With its upper edge
550mm +/- 5mm above the reference surface on the cabin top.
No 2 With its
lower edge not less than 7040mm and not more than 7042mm above the upper edge of
band No 1.
No 3 With its lower edge 8700mm maximum above the upper edge of
band No 1. |
| 3.5.2.8 |
The standing rigging shall consist
of:
upper (main) shrouds, lower shrouds, forestay and backstay
They shall
be made of stainless steel of circular cross-section.
|
|
3.5.2.9 |
The diameter of the backstay shall
be 3mm minimum. The diameter of the other standing rigging shall be 4mm
minimum.
|
| 3.5.2.10 |
The attachment point on the mast of
the upper shrouds shall not be more than 100mm from the lower edge of band No
2.
Note: For the purpose of this and subsequent rules the "attachment point"
is defined as the intersection of the centreline of the wire and the surface of
the mast or deck. Shrouds and forestay shall be fastened to tangs or other
external fixings or by 'key hole' fittings.
|
| 3.5.2.11 |
The attachment point on the mast of
the lower shrouds shall be not less than 3320mm and not more than 3620mm above
the upper edge of band No 1.
|
| 3.5.2.12 |
The attachment point of the
forestay on the mast shall not be above the lower edge of band No 2 nor more
than 100mm below it.
|
| 3.5.2.13 |
The backstay shall be attached to
the mast as indicated on the plan. A backstay tensioning system is
permitted.
|
| 3.5.2.14 |
The forestay shall intersect the
deck 1580mm + 5mm forward of station 8. If the jib is attached to furling gear
this measurement shall be taken to the line of the forward edge of the jib in
its most forward position.
|
| 3.5.2.15 |
The main and lower shrouds shall
intersect the deck not more than 75mm inboard from the sheerline. The attachment
points shall each be not more than 3242mm nor less than 2842mm from the
intersection of the centreline of the forestay with the deck, measured
radially.
|
| 3.5.2.16 |
The bearing surface of the sheave
for the spinnaker halyard shall not be more than 100mm above the lower edge of
band No 2.
The spinnaker halyard shall not be supported more than 60mm
forward of the forward face of the mast.
|
| 3.5.2.17 |
Spreaders as shown on the plan
shall be fitted. The spreaders shall be not less than 700mm long measured from
the face of the mast to the bearing surface of the shroud. The centreline of the
attachment point of the spreaders shall be above and not more than 200mm from
the attachment point of the lower shrouds.
|
| 3.5.2.18 |
A stop shall be fitted to the mast
to prevent the line of upper edge of the boom from being below band No
1.
|
| 3.5.2.19 |
The mast complete with all
standing and running rigging and supported at band No 1 shall not weigh less
than 12kg when it is weighed at band No 3. For the purpose of this measurement
the halyards shall be fully hoisted and the standing rigging secured along the
mast. The ends of the rigging below band No 1 may rest on the
ground.
|
| 3.5.3 |
Boom
|
| 3.5.3.1 |
The main boom shall be an
aluminium extrusion of continuous section and shall have a continuous groove for
a boltrope. The dimensions shall be: depth 90mm + 15mm and width 75mm + 15mm.
The weight of the extrusion shall not be less than 1.25kg/m. Tapered or
permanently bent booms are prohibited. However, a set due to distortion not
exceeding 30mm between inner edge of the measurement band and the inner end of
the boom is permitted.
|
| 3.5.3.2 |
A measurement band, clearly
discernible while racing, shall be painted or otherwise permanently marked on
the boom with its inner edge not more than 3000mm from the mast measured with
the boom in its lowest position and perpendicular to the mast. The measurement
shall be taken from the line of the aft edge of the mast (shown on the diagram
of the mast section) projected downwards excluding any local curvature due to
the sail entry.
|
| 3.5.4 |
Spinnaker
Boom
When attached
to the mast the outer end of the spinnaker boom shall not be capable of
extending more than 2415mm from the face of the mast. It shall be attached to
the mast 942mm+ 30mm above band No 1.
|
| 3.6 |
Sails
|
| 3.6.1 |
General
|
| 3.6.1.1 |
The sails shall be made
and measured in accordance with Section G of the ISAF Equipment Rules 1997-2000,
except where otherwise specified.
|
| 3.6.1.2 |
The sails shall be made
of synthetic woven material. The cloth weight of the mainsail and jib shall not
be less than 200g/², and of the spinnaker not less than 35g/². Unwoven
transparent panels with total area not exceeding 0.3² are permitted both in
mainsail and jib. No transparent panel shall be less than 142mm from any edge of
the sail.
|
| 3.6.1.3 |
The class emblem,
national letter(s) and the yacht's sail number shall appear on both sides of the
mainsail. National letter(s) and sail-number(s) shall be on both sides of the
spinnaker, touching a horizontal centreline created by folding the spinnaker in
half horizontally at the half height of the leeches and at the half of the
vertical centre fold.
Letters and numbers shall be of the following
minimum dimensions:
Height 380mm
Width (excluding number one and letter I)
242mm
Thickness 55mm
Space between adjacent letters and numbers
75mm
The class emblem shall be of a colour clearly discernible and
contrasting with the sail or be of two colours in accordance with the plan and
shall be of the following minimum dimensions:
Height 300mm
Width 440mm
overall
Thickness 42mm |
| 3.6.1.4 |
Each sail measured after
1st of January 2001 shall have permanently fixed near its tack an official red
IHA button. No sail shall accepted for its first measurement without this
button. The measurer shall sign next to the button. The button shall be
available from the IHA.
|
| 3.6.2 |
Mainsail
|
| 3.6.2.1 |
The mainsail shall not
extend above the lower edge of band No 3 nor beyond the inner edge of the band
on the boom. The upper edge of the boom shall not be below the upper edge of
band No 1.
|
| 3.6.2.2 |
The length of the leech
shall not exceed 9190mm.
|
| 3.6.2.3 |
The total width of the
mainsail (including the luff rope) between points on the luff and leech at half
and three quarter heights shall not exceed 1910mm and 1110mm respectively. Any
hollow in the leech shall be bridged.
|
| 3.6.2.4 |
The horizontal and
vertical measurements of the headboard shall not exceed
120mm.
|
| 3.6.2.5 |
The total width of the
mainsail (including the luff rope) measured at right angles to the luff 400mm
from the head shall not exceed 320mm.
|
| 3.6.2.6 |
Not more than four battens are
permitted in the mainsail. The batten pockets shall divide the leech into equal
parts + 100mm, measured to the lower edge of each pocket. The length of the
lower three pockets shall not exceed 842mm measured from the aft edge of the
sail. The upper batten pocket may extend to the mast.
The inside width of the
pockets, excluding local widening for the purpose of inserting the battens,
shall not exceed 60mm.
|
| 3.6.2.7 |
Reefing gear, Cunningham
and other tensioning devices are optional.
|
| 3.6.3 |
Jib
The jib
shall be made and measured in accordance with the ISAF Sail Measurement Rules
1993 except where varied herein. Where a term or a measurement given in the ISAF
Sail Measurement Rules is used, it is printed in 'italic'
type. |
| 3.6.3.1 |
Construction
The
construction shall be: Soft sail, single ply sail.
The sail shall have 3
batten pockets in the leech.
The following are permitted: Stitching, glues,
tapes, bolt ropes, corner eyes, hanks, batten pockets elastic, batten pocket end
caps, leech line with cleat, two windows, sailmaker label, royalty label, sail
button, tell tails.
|
| 3.6.3.2 |
Dimensions
maximum
Luff
length.................................................................................
Leech
length.............................................................................
Foot
length................................................................................
Foot
median.............................................................................
Top
width...................................................................................
Foot
irregularity........................................................................
Head
Point to point on foot 750mm from Tack Point...........
Head Point to point
on foot 750mm from Clew Point...........
Upper width between points on luff
and leech respectively 2450mm and 2300mm from the Head
Point.........................
Lower width between points on luff and leech
respectively 5020mm and 4720mm from the Head
Point.........................
Primary reinforcement from corner measurement
points.....
Secondary
reinforcement from corner measurement points
for flutter
patches......................................................................
for
batten pocket
patches........................................................
Top batten
pocket inside length..............................................
Middle
batten pocket inside length.........................................
Bottom
batten pocket inside length........................................ |
7580mm
7130mm
2830mm
7445mm
45mm
40mm
7580mm
7360mm
935mm
1870mm
380mm
1140mm
115mm
200mm
300mm
342mm
442mm
|
| 3.6.3.3 |
The top of the jib shall be
straight at an angle of 90° to the luff. |
| 3.6.3.4 |
Jib furling gear is optional and
can be installed with its mechanism below or above the deck. When installed
below deck the forestay shall have a sealed radial bearing system at the
intersection point of the deck. If a tube is used on the forestay it shall be
enclosed in the luff of the sail. |
| 3.6.4 |
Spinnaker |
| 3.6.4.1 |
The spinnaker shall be a three
cornered sail symmetrical about its centreline. It shall not embody any device
capable of altering its shape. |
| 3.6.4.2 |
The lengths of the luffs shall not
exceed 7300mm. The half width of the foot shall not exceed 2400mm. The half
width measured between points on the luffs and the centrefold 3420mm from the
head shall be 2642+42mm. The total distance from the head to the centre of the
foot shall not exceed 9000mm. This measurement shall be taken with the sail
opened out, laid on a flat surface and with sufficient tension applied at the
head and the centre of the foot just to remove the wrinkles across the line of
the measurement. |
| 3.7 |
Weight of
Boat |
| 3.7.1 |
The total weight of the boat shall
not be less than 1450kg. Corrector weights, if any of lead shall be laminated to
the lower surface of the deck, evenly divided, at stations two and
eight. |
| 3.7.2 |
The following parts and equipment
shall be include in the total weight:
Keel, rudder, tiller and tiller
extension,
minimum accommodation according to the plan
mast and standing
rigging, all halyards
and the spinnaker boom guys,
main boom (without
mainsheet, kicking strap
and other loose equipment),
all hatches and fixed
fittings including
fairleads and tracks with sliders,
winches and
cleats. |
| 3.7.3 |
The following equipment shall not
be included in the weight:
all non-fixed equipment such as
spinnaker
pole, life vests, anchor and anchor line,
paddle, bucket, pump
etc., all blocks,
sheets and lines for trimming of sails,
mattresses and
personal effects. |
| 3.7.4 |
The following parts shall, if they
are permanently fixed to the boat, either be removed before weighing or their
weight shall be estimated and deducted:
compasses,
fixed pumps with
hoses,
tightening devices for backstay
and kicking strap, jib
furling
gear, stove, toilet, lifting eyes.
A list of estimated weights
shall be included in the measurement certificate. |
| 3.8 |
General and
Prohibitions
|
| 3.8.1 |
Loose Ballast
Loose
ballast or ballast carried by the crew is prohibited.
|
| 3.8.2 |
Rigging
Adjustment
|
| 3.8.2.1 |
The position of the attachment
points of shrouds and stays shall not be adjustable.
|
| 3.8.2.2 |
The length of shrouds and stays
shall be altered only by turnbuckles which shall be above the deck. They shall
not be adjusted while racing.
|
| 3.8.2.3 |
Sail trimming devices, except the
jib luff adjustment (Cunningham) and the backstay, shall not pass through holes
in the deck.
|
| 3.8.3 |
Mast Adjustment
The
position of the foot of the mast shall not be altered while
racing.
|
| 3.8.4 |
Support for crew
When
hiking no part of a crew-member's body between the middle of the thigh and feet
shall be outboard of the sheerline. The crew may use handles and/or footstraps
for safety. All footstraps or contrivances shall be designed so as to come
completely off the feet in the normal act of tacking. The use of hobbles or
individually closed straps for each foot is specifically prohibited. One
handhold on the yacht's centreline on the foredeck is
permitted.
|
| 3.8.5 |
Electronic
Equipment
Devices transmitting and correlating data relative to wind
direction or speed or boat speed and location by means such us, but not limited
to electronic, mechanical, hydraulic or pneumatic are prohibited from use whilst
racing. Any boats fitted with this type of equipment shall have the display and
the master units disabled to the satisfaction of the race committee.
The use
of an electronic digital compass with chronograph (timer and/or clock) is
permitted. The compass must be entirely self-contained with either an internal
battery or solar power. The compass shall have no external connections. This
includes power supply and data inputs.
|
| 3.8.6 |
Advertising
For
advertising on the H-Boat Category C is valid with following restrictions:
Advertising on the jib is prohibited. Advertising on the main is allowed in an
area between the boom and a line parallel to the boom in a distances of 1800
mm. |
|
3.8.7 |
A competitor's clothing and
equipment shall not weigh more than 10kg, excluding clothing (including
footwear) worn only below the knee.
|
|
4. |
ADDITIONAL RULES APPLICABLE WHILE
RACING |
| 4.1 |
Unless otherwise specified there shall
be at least two and not more than four persons on board. In world championships,
the number of crew shall be three, whose total weight in underwear shall not
exceed 300Kg
|
| 4.2 |
The following equipment
shall be carried on board:
anchor of minimum weight 7kg,
30 metres of 12mm
minimum diameter synthetic fibre rope,
one paddle,
one bucket,
personal
buoyancy for each member of the crew.
|
| 4.3 |
An outboard motor may be carried on
board while racing. |
| |
OFFICIAL PLANS
|
| |
A.1.1 |
Lines drawing |
A.1.2 |
Sectional drawing |
| |
A.1.3 |
Keel |
A.2.1 |
General arrangement |
| |
A.3.1 |
Lamination drawing |
A.3.2 |
Spars |
| |
A.3.3 |
Rudder |
A.3.4 |
Details |
| |
A.3.5 |
Alternative main bulkhead |
|
|
| |
A.4.1 |
Sail Plan |
A.5.1 |
Measurement
Plan |
|
APPENDIX 1 - LAMINATE
SPECIFICATION |
| 1. |
HULL (SEE ALSO PLAN
3.1)
|
| 1.1 |
Gelcoat.
|
| 1.2 |
300g/² surface mat over whole
moulding.
|
| 1.3 |
2 x 450g/² CSM (chopped strand mat),
over whole moulding.
|
| 1.4 |
680g/² WR (woven roving), over whole
moulding.
|
| 1.5 |
450g/² CSM, over whole
moulding.
|
| 1.6 |
680g/² WR, over whole
moulding.
1200mm below the sheerline there shall be a 150mm wide overlapping
joint.
|
| 1.7 |
450g/² CSM below the
joint.
|
| 1.8 |
680g/² WR below the
joint.
|
| 1.9 |
450g/² CSM over the keel 500-500mm
wide according to plan.
|
| 1.10 |
680g/² WR as 1.9
above.
|
| 1.11 |
450g/² CSM as 1.9 above.
One 100mm
wide strip of 450g/² CSM shall be laid between floors or bulkheads and the
hull.
|
| 1.12 |
The layers shall be in the above given
sequence. No layers shall be omitted nor their weight
reduced.
|
| 1.13 |
The pocket formed by the skeg and
rudder may be filled with plastic or
equivalent
material.
|
| 1.14 |
Visible inner surfaces to be
painted.
|
| 1.15 |
For assembling of the berths to the
hull a support can be used which is laminated to the hull. This support shall
consist of one fibre-glass matt 450g/m and shall have a maximum extension of 70
x 70mm alongside of the hull.
|
| 2. |
FLOORS
|
| 2.1 |
5 x 450g/² CSM. Construction
according to plan. Flange 30mm wide.
|
| 3. |
DECK
|
| 3.1 |
Gelcoat.
|
| 3.2 |
300g/² surface mat over whole
moulding.
|
| 3.3 |
450g/² CSM over whole
moulding.
|
| 3.4 |
680g/² WR over whole
moulding.
|
| 3.5 |
450g/² CSM over whole
moulding.
|
| 3.6 |
15mm Airex or equivalent material as
indicated on plan.
|
| 3.7 |
450g/² CSM over whole
moulding.
|
| 3.8 |
680g/² WR over whole
moulding.
|
| 3.9 |
450g/² CSM over whole
moulding.
|
| 3.10 |
Deck beams to be covered with 3 x
450g/² mat with 50mm overlap on both sides of beam.
|
| 3.11 |
Sandwich construction may be
substituted by a construction with deck beams in accordance with the plan and
paragraph 3.10.
|
| 3.12 |
Visible inner surfaces are to be
painted.
|
| 4. |
ACCOMMODATION
MOULDING
|
| 4.1 |
Gelcoat.
|
| 4.2 |
4 x 450g/² CSM over whole
moulding.
|
| 4.3 |
2 x 450g/² over the section which
forms a bulkhead.
|
| 5. |
FORWARD ACCOMMODATION
MOULDING
|
| 5.1 |
Gelcoat.
|
| 5.2 |
5 x 450g/² CSM over whole
moulding.
|
| 6. |
AFT MOULDING AND
BULKHEAD
|
| 6.1 |
Gelcoat.
|
| 6.2 |
3 x 450g/² CSM over whole
moulding.
|
| 6.3 |
2 x 450g/² CSM over
bulkhead.
|
| 6.4 |
Bulkhead may be made of marine
plywood.
|
| 7.
|
JOINING OF
PARTS |
| 7.1 |
Plywood bulkheads
attached to hull with 3 x 450g/² mat on both sides.
|
| 7.2 |
GRP bulkheads as in
paragraph 7.1
|
| 7.3 |
Accommodation
mouldings attached to hull with 2 x 450g/² mat.
|
| 7.4 |
Deck to hull joint to
be according to detail on plan.
|
| 7.5 |
Attachment of floors to hull to be as
in paragraph 7.1 above.
|
| 8. |
HATCHES |
| 8.1 |
Gelcoat (can be
omitted).
|
| 8.2 |
300g/² surface
mat.
|
| 8.3 |
5 x 450g/²
CSM.
|
| 9. |
RUDDER
|
| 9.1 |
Gelcoat.
|
| 9.2 |
4 x 450g/² CSM on both
halves.
|
| 9.3 |
To be filled with Airex or
equivalent material.
|
| 10. |
MATERIALS
|
| |
Glassfibre of E-type
glass. Resin shall be polyester suitable for marine use. All fillers are
prohibited. |
| |
|
| |
Download Class Rules |
Drawings/Plans |
|
