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The design of the yacht
shall be in accordance with the following specifications
as regards the hull, rudder, propeller, ballast, deck, rig and spars, headboard, and also as
regards to placing of engine, fuel and water tanks, and
batteries.
No changes may be made to the underwater hull except what
concerns the finish of the surface.
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Hull: |
In accordance with masterplug line
drawing 0-55122. |
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L.O.A.: |
9158 +/- 20 mm |
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Max
beam: |
2960 +/- 10 mm |
| Rudder:
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In accordance with drawing 0-55122. |
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Propeller: |
Firmly attached standard propeller
(13,5" x 11,5") or folding propeller
not less than 15". |
| Keel
weight: |
1550 kgs (lead 1470 kgs,
plastic/sand filling 80 kgs) |
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Deck: |
In accordance with drawings 0-55317
or 0-58864.
Genoa sheet rail shall not be placed closer to
the centre line of the boat than in the original
design. It may be lengthened in its original
direction and curve. |
| Accomodation: |
In accordance with drawings 325 /
290 and 0-55993. |
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Engine: |
Weight of engine shall not be less
than 185 kgs incl. oil. The use of a lighter
engine may be allowed in case corresponding
compensation weights are laminated into the hull
in the front part of the oil sump or in a
position transversal to that. An extra battery in
that position may be a part of the compensation weight. |
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Tanks: |
Fuel and water tanks shall be
designed and placed according to the drawing
0-55993. |
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Batteries: |
Batteries with a total minimum
weight of 42 kgs shall be placed under fore bunk.
If batteries with less weight are used or they
are removed from their original position,
compensation weight of not less than 42 kgs shall
be laminated to the hull in a similar position at
the same level.
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Rigs and spars: |
The rig shall be of masthead type
with one pair of cross-trees. Mast shall be
placed on the centre line of the boat. Mast and
boom shall be made of aluminium alloy.
Weight of mast shall be not less than 70 kgs
incl. cross-trees, fastenings for shrouds and
stays, pulleys, cleats and a spinnaker boom rail
with runner(s).
Centre of gravity of the mast shall be not less
than 5700 mm above base of mast foot.
Length of mast shall not be greater than 12700
mm. Diameter of mast from the mast foot all the
way to the level of 2000 mm from the mast top
shall not be less than 114 x 165 mm.
Length of cross-trees shall be at least 820 mm.
Length of spinnaker boom shall not exceed 3740
mm. All shrouds and stays shall be either 1 x 19
wire or rod, with a diameter not less than 6 mm
and 5 mm respectively. The measure between the
forestay fastening in the hull and the
forside of the mast
(J measure) shall be 3500 +/- 25 mm. Double forestays are not
allowed.
Profile
forestay is allowed, but the same groove and halyard shall be
used when changing sail, and only one groove shall be used by
the sail.
Inner forestay is not allowed.
Jockey pole is allowed.
Twin foresail halyards are
allowed.
Pulpits and lifelines shall be fitted in
accordance with the design, i.e. as delivered
from the yard.
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Measurement marks: |
Black measurement bands of 25 mm
width shall be painted on mast and boom.
Upper edge of lower mast band shall be at the
level of the upper edge of the boom when boom is
in horisontal position. Lower edge of upper mast
band shall be 9750 mm above upper edge of lower
band, and not further from the mast top than 452
mm.
Distance from inner edge of boom band to aft mast
shall be 2850 mm. |
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Sails: |
Only sails made of dacron, woven
polyester sailcloth or laminated material containing polyester film (mylar) and polyester
are allowed. Sailcloth material containing any
high modulus fibres like kevlar (Aramid),
Spectra, Vectra or Carbon is not allowed. Ply
weight is optional.
At the International Ballad Cups, the following
sails shall carry official measurement stamps:
spinnakers and genoas larger than 27 m2.
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Mainsail
Mainsail shall not be set beyond measure marks on
mast and boom.
Only a trysail shall be set loose footed.
Batten length is optional. Up to four battens may
be used. Headboard width shall not be greater
than 152 mm. Distance between the top of the
headboard and the centre of the upper batten
pocket shall not be less than 1950 mm.
The MGU measure shall not be greater than 1100
mm. The MGM measure shall not be greater than
1850 mm. Making this measurement, concavities of
the leech shall be bridged. The length of the
leech is optional.
Mainsail shall be marked with the class insigna,
a black "B" with a red star unless
otherwise prescribed by the national authority.
Window in mainsail shall not be greater than 235
x 790 mm. |
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Headsails
Genoa
Luff perpendicular (LP) |
5610 mm |
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Height
of fore triangle (IG/ISP) |
11300
mm |
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Base
of fore triangle (J) |
3525
mm |
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The Luff, which is basis for the
measurement, shall be stretched by 300 N (30 kp).The length of the leech is optional.
Window in genoa shall not be greater than 205 x
965 mm.
When
using a profile forestay LP shall be reduced by FSP being
defined as the maximum chord of the cross section of the profile
forestay multiplied by 2 - the chord is measured perpendicular
to the longitudinal axis of the profile forestay - and the
double chord measurement is rounded to the nearest capital
number of centimetre. For example if the profile chord
measurement is 28 mm - then LP shall be reduced by 60mm as
2x28mm = 56mm which shall be rounded to 6 cm.
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Spinnaker
Leech (SL) shall not be greater than |
11300 mm |
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Max
width (SMW) |
6730
mm |
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The width at half of the height
shall not be less than 75 % of the width at the
foot (SMG). |
Number of
sails: |
(Maximum number of sails carried
onboard)
1 mainsail
1 trysail (heavy cloth, no battens)
5 genoas/jibs of which only 2 may have an area
greater than 27 m2
1 storm jib
2 spinnakers
When a spinnaker is set, any headsail may be set
flying with its tack fixed approximately in the
centre-line of the boat. |
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Standard Equipment: |
All standard equipment delivered
with the boat from the yard shall be carried on
board.
The standard equipment includes:
- 5 mattresses + cushions in cabin
- all carpets (or wooden floor)
- pantry incl. fuel
- table (table top area not less than 0,5 m2)
- boat hook
- moorings
- all fixed details
At the International Ballad Cups, the cushions,
carpets and table may be left ashore. |
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Crew: |
The number of crew members is
optional, unless differently demanded by the
sailing race authorities. At the International
Ballad Cups, the maximum number of crew members
is limited to six persons, including the helmsman. |
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Certificates: |
Ballad Class Certificate is issued
by the National Ballad Association.
Ballad Class Certificate and Ballad One Design
Rule shall be carried on board. |
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Alterations of the rules: |
Alterations of these rules can be made,
upon recommendations from any Ballad Club, at the general
annual assembly of BODA (Ballad One Design Association).
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The original One Design
Rule was approved at the assembly in Copenhagen, January
30th 1976 and was amended by delegates from Denmark, Norway, England, Germany and
Sweden in Kristinehamn, January 22th 1977.
Alterations have been made at BODA assemblies 1984, 1988,
1989, 1990, 1993, 1994, 1995, 1996 and 2000.
BODA, June 2000
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