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1. GENERAL
1.1 To promote the objects of these restrictions and
rules and to establish a class of boat which is one
design in all matters which affect performance. The
rules shall be interpreted in this spirit.
1.2 Tolerances in measurements are laid down only to
cover unintentional variations in building and changes
in shape through age or use. The exploitation of these
tolerances shall not be permitted.
1.3 The FARR 7500 must be built from the official moulds
of Bruce Farr Design No 76 and must be sold only by
the manufacturer in a form which enables the boat to
be completed so that it complies with these restrictions
and rules.
1.4 The FARR 7500 must be maintained in the same form
as when completed by the manufacturer in regard to deck
layout, mast, rigging, sails, and general equipment.
As a general principle any extra fittings or changes
from standard shall not be permitted unless specifically
detailed in these rules.
2. HULL
2.1 All hulls must be produced from the official moulds
of Bruce Farr Design No 76. The length overall shall
be: 7.458 m (± 12 mm)
2.3 The beam shall be: 2:500 m (±12 mm)
2.4 Construction. shall be of glass reinforced plastic
to the manufacturer's specifications.
2.5 The installation of flaps on the skeg to restrict
the surging of water in the centre case is permitted.
3. DECK
3.1 All decks must be produced from the official
moulds of the Bruce Farr Design No 76.
4. INTERIOR LINERS
4.1 All interior liners must be produced from the official
moulds of Bruce Farr Design No 76.
5. CABIN
5.1 Cabin layout must be as per the manufacturer's
specifications.
6. BALLAST
6.1 Ballast must be in the form of: Outside: Lifting
keel made of cast iron weighing 204 kgs and made from
the manufacturer's moulds. Inside: Lead weighing 162
kgs situated under the interior liner at the forward
end of the case as per designer's specifications.
6.2 The lifting keel must be attached to the hull in
accordance with the designer's specifications.
6.3 The keel lifting wire shall be a minimum of 4 mm
flexible wire.
6.4 No additional movable ballast other than standard
equipment, safety gear and crew shall be permitted.
7. FLOTATION
7.1 All boats must contain approximately 0.6 cubic metres
of polurethane - P.V.C. Foam.
8. RUDDER
8.1 The rudder must be to the designer's specifications.
The rudder stock shall be made of aluminium or stainless
steel and the blade made of fibreglass.
9. SAFETY EQUIPMENT
9.1 All boats must carry safety equipment in accordance
with the New Zealand Trailer Yacht Association's Safety
Standards unless otherwise specified in these rules.
10. ANCHORS AND WARPS
10.1 Each yacht shall carry ready to use in a readily
accessible stowage one anchor and warp as follows: Anchor:
A Danforth 13S, C.Q.R. 8.2 kgs or, if of patterns other
than these, an anchor of equivalent holding power. Warps:
Warps must include a minimum of 3.8 metres of 6 mm diameter
galvanised short linked chain. The total length of the
warp shall be a minimum of 46 metres and must have a
breaking strain of not less than 1360 kgs and should
be of a synthetic fibre.
11. GENERAL
11.1 Whilst racing all boats shall carry the pop top
in a closed condition at all times.
11.2 Whilst racing all boats shall have on board cabin
entrance side panels and the main entrance wooden panels.
The exception shall be that when racing inshore around
buoys and marks under the supervision of a recognised
Yacht Club or Squadron, the main entrance wood panels
may be substituted by the plastic dome-on panel.
12 SQUABS
12.1 All bunk squabs shall be of 3 inch thickness foam
and must be carried in their normal position while racing.
13. MAST AND RIGGING
13.1.1 The mast shall be an aluminium extrusion manufactured
to the designer's specifications. The mast and rigging
must comply with the following specifications:
- Height of mast above deck 9.100 m (±12 mm)
- Height of spreaders above deck 3.270 m (±
12 mm).
- Height of lower stays above deck 3.265 m (±
12 mm).
- Height of hounds above deck 6.550 m (± 12
mm).
- Side stays and lower stays must be made of 4 mm
1/19 stainless steel wire.
- Forestay must be a minimum of 4 mm diameter 1/19
stainless steel wire.
- Length of spreaders from side of mast to the bearing
point of the sidestay wire shall be not less than
680 mm nor more than 880 mm (± 12 mm).
- The maximum aft rake of the spreaders shall be 400
mm from the aft face of the mast track to the centre
of a straight line from the end of each spreader arm
where the wire bears of the spreader assuming a spreader
length of 880 mm as in the above clause.
- Clause deleted.
- The height of the jib halyard exit above the deck
shall be 6.440 m (±12 mm).
- The height of the spinnaker halyard exit box above
the deck shall be a maximum of 6.885 m (± 12
mm)
- The spinnaker pole fitting on the mast shall be
no more than 0.880 m (± 12 mm) above the deck
and only one shall be allowed.
14. BOOM
The main boom shall be an aluminium extrusion manufactured
to designers specifications. The boom must comply with
the following specifications:
14.1 Overall length from the aft face of the mast to
the outer end of the boom when in operational position
shall be 3.700 m (± 12 mm).
14.2 The boom vang shall lead from a position on the
boom which measures 1.140 m (± 12 mm) form the
aft face of the mast when the boom is in an operation
position.
14.3 The mainsheet shall lead from a position on the
boom which measures 2.910 m (± 12 mm) from the
aft face of the mast when the boom is in an operational
position.
14.4 The mainsail outhaul shall be a 3: 1 purchase
and may be cleated on the main boom.
14.5 The flattening reef may be controlled by a 3:
purchase system similar to the outhaul.
15 MAINSAIL, JIB AND SPINNAKER
15.1 All sails shall comply with the measurements and
specifications detailed in Appendix 1.
15.2 A furling jib shall be allowed providing the sail
complies with the specifications in Appendix l.
15.3 Sails will be restricted in number as follows:
1 x Mainsail
1 x No 1 Genoa
1 x No 2 Genoa
1 x Jib
1 x Storm Jib
1 x Spinnaker Small
1 x Spinnaker Large
15.4 The Class Sail Insignia must be displayed on the
mainsail.
15.5 A Jib Cunningham may be permitted.
15.6 Mainsail controls other than the halyard shall
be restricted to a luff Cunningham, an outhaul and reefing
lines including a flattening reef.
15.7 The reefing line must be attached to the boom
and the first reef and be ready for use at all times.
15.8 The use of barber haulers for spinnaker guy and
sheet and genoa sheets is permitted.
16. DECK HARDWARE AND EQUIPMENT
16.1 Layout of deck fittings shall be maintained as
per the designers specifications. Variation in the type
of cleats shall be permitted.
16.2 Only 4 winches other than the keel winch shall
be permitted.
16.3 Mainsheet traveller - maximum length of track
(measured between end stops) to be 1.400 m.
16.4 The boom vang adjustment line may be lead aft
and cleated on the cabin top.
16.5 No hydraulic equipment is permitted.
16.6 Electronic navigational aids shall be permitted
17. SPINNAKER POLE
17.1 The overall length of the spinnaker pole shall
be a maximum length of 2.80 m (± 12 mm) measured
from the face of the mast to the bearing point of the
outer parrot's beak fitting. Measurement will be taken
with the spinnaker pole attached to the spinnaker bail
on mast and square to mast and against forestay.
17.2 The spinnaker pole may be carried on the main
boom or elsewhere but no self launching apparatus shall
be permitted.
17.3 The spinnaker pole shall be made of 50.8 mm x
2.03 mm aluminium tube.
17.4 The spinnaker pole topping lift and/or downhaul
may be adjustable.
18. CREW
18. 1 The minimum number of crew when racing shall be
three people unless otherwise specified in the Sailing
Instructions.
19. WEIGHT
19.1 The weight of the boat shall be not less than 1200
kgs. This weight shall include hull, mast sails, standing
and running rigging, squabs, outboard bracket, ballast,
rudder tiller assembly but it shall not include the
motor, fuel tank or any loose gear.
20. AUXILLARY POWER
20.1 Motor rating must be a minimum of 7 hp.
20.2 Outboard motors must be carried on a bracket on
the transom.
FARR 7500 SAIL RESTRICTIONS
APPENDIX 1
Mains and headsails shall be stretched out to remove
wrinkles from edges when measuring.
Main
Luff 8080 mm
Leech 8700 mm
Foot 3500 mm
The top batten pocket measured from the top of the
headboard to the top of the pocket shall be not less
than 1950 mm at the luff and 1760 mm at the leech. The
pocket shall not exceed 1120 mm in length, measured
along the top of the pocket.
Each of the other pockets shall not exceed 840 mm in
length and be positioned as shown on the sail plan.
Alternatively, the sail may have up to four full length
or long battens (including the top batten). These shall
be equally spaced along the leech. The reef positions
shall be as positioned on the sail plan.
A cross measurement on the mainsail measured across
the sail from a point on the luff derived from folding
the head to the tack shall not exceed 2270 mm.
The top edge of the headboard and the outside edge
of the the boltrope shall be the measurement points,
The minimum weight of the fabric for the main shall
be 5.0 oz American weight dacron.
Jib
Luff 6920 mm
Leech 6040 mm
Foot 2600 mm
A cross measurement on the jib measured across the
sail from a point on the luff derived from folding the
head to the tack shall not exceed 1320 mm.
Three battens may be attached positioned equidistant
along the leech of the jib. Each batten shall not exceed
300 mm. A self tacking jib to the above restrictions
shall be permitted.
The minimum weight of fabric for the jib shall be 6.5
oz American weight dacron.
No 2 Genoa
Luff 7140 mm
Leech 6340 mm
Foot 3670 mm
A cross measurement on the genoa measured across the
sail from a point on the luff derived from folding the
head to the tack shall not exceed 1980 mm.
Three battens may be attached positioned equidistant
along the leech of the jib. Each batten shall not exceed
300 mm.
The minimum weight of the fabric for the genoa shall
be 3.8 oz American weight dacron.
Storm Jib
Luff 5200 mm
Leech 4150 mm
Foot 2230 mm
The cross measurement on the jib measured across the
sail from a point on the luff derived from folding the
head to the tack shall not exceed 1140 mm.
The minimum weight of fabric for the storm jib shall
be 6.5 oz American weight dacron.
Spinnaker Small
Luff 6650 mm
Leech 6650 mm
Foot (1/2) 2080 mm
Spinnaker Large
Luff 7500 mm
Leech 7500 mm
Foot (1/2) 2460 mm
The measurement from the top of head to bottom of head
radials shall not exceed: 3660 mm (S); 3660 mm (L).
The measurement from the bottom of the head radials
to bottom of foot tape shall not exceed: 3800 mm (S);
4600 mm (L).
The measurement across the spinnaker measured around
the head base of the head radials shall not exceed:
4010 mm (S); 5070 mm (L).
The spinnaker shall be measured on the luff foot drop
dimensions with the sail folded in half (luff to luff)
and spread on flat on the floor and measured round the
curves.
The cross measurement shall be measured with the sail
smoothed out flat on the floor and measured from luff
to leech along the base of the radial panels.
Where there is any doubt as to the sail conforming
to plan the mylar templates shall be applied to check
for accuracy.
The minimum weight fabric shall be 0.75 oz per square
yard.
No 1 Genoa
Luff 7200 mm
Leech 6460 mm
Foot 4240 mm
The minimum weight of fabric shall be 3.8 oz American
weight dacron.
Whenever Farr 7500 owners convene for a class regatta
or event then the sailing instructions for the regatta
shall direct the Officer of the Bay to poll skippers
on whether or not to allow the use of the No 1 Genoa.
This sail should be permitted only if it is available
for all Farr 7500 yachts entered for the regatta or
event.
APPENDIX 2
Farr 7500 sails may be made by any sailmaker but strictly
to class rule measurements.
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