|
ARTICLE III
Specifications:
3-1 Tolerances: Any dimension not defined as a maximum or minimum shall
have a standard
boat builder's tolerance of plus or minus 1/4". A maximum or minimum
dimension shall be an absolute measurement; a maximum cannot be exceeded and a minimum
cannot be reduced.
The keel weight is allowed to vary by plus or minus 20 lbs.
3-2 Hull and Deck:
3-2.1 Hull and deck shall be built of Fiberglass (also known as GRP)
from molds approved by the Wylie Wabbit Class Association, and which strictly follow the
original One Design Plans by Tom Wylie. The construction technique and lay-up schedule,
should be similar to maintain similar weight distribution in all hulls.
3-2.2 Hulls shall be issued a measurement certificate by the builder
upon delivery,
or by the class measurer before a national regatta. Certificates shall only
be given to yachts complying to class rules.
3-2.3 An opening hatch at the rear is required. This
hatch must be similar in weight, construction, location, and operation as provided by the
original builder. Hatch must
be equipped so it can be secured.
3-2.4 All yachts should weigh a minimum of 975 lbs in
measurement trim. Measurement trim is defined in paragraph 3-2.5. Yachts not meeting the
minimum weight requirement shall correct deficiencies by adding weight permanently affixed
in position. Up to 50 lbs is allowed to be added without restriction as to location.
Any
weight required in excess of 50 lbs shall be divided into equal amounts, and placed within
3 feet of each end (bow and stern).
3-2.5 Measurement trim will be defined as follows:
A The Yacht must be in bailed out and dry condition;
B. All air bags and or floatation bags will be inflated, and in proper
position;
C. The mast, standing rigging, running rigging that is normally lead through
the mast, and trapeze gear normally attached to the
mast, should be in their normal sailing position;
D. All deck hardware normally bolted or secured to the hull shall be included;
E. Compasses and or electronics permanently affixed to the boat can be
included;
F. Hiking straps and tiller extensions, if permanently affixed to the tiller, can be included;
G. Rudder and rudder fittings, including the tiller, shall be included;
H. Hatch closing devices which are screwed or bolted to the deck can be
included;
I. Pulpits, stations, and or lifelines, if permanently installed,
can be included;
J. All other equipment shall be removed.
3-2.6 A yacht which has been measured for a previous
national regatta, by an
official class measurer, may be raced without further measurement
only if; the
yacht has a measurement certificate accurately indicating the yacht's
condition,
and no alterations have been made to the hull or equipment since last being
measured. The owner or skipper may be required to certify in writing that no alterations
have been made since the last measurement. The official measurer
may, at his discretion,
measure any yacht before or during its participation in a
national regatta.
3-3 Rudder: The rudder is to have a solid, stainless steel,
rudder post of 1" outer
diameter. The profile, foil shape, and location are to
conform with Tom Wylie's drawing
# 10-01-01 B, dated October 1981. Drawings are available
through Tom Wylie
Naval Architect.
3-4 Keel: The keel shall be standard as supplied with the yacht from
the builder. The
lead ballast shall be neither increased or decreased. Nominal weight to
be 440 lbs,
subject to tolerances described in 3-1. The section, profile, and location is
to conform
with lines, plans, and table of offsets indicated on original Wabbit drawings
by Tom Wylie.
Drawings are available through Tom Wylie Naval Architect.
3-4.1 Coring of the keel is permitted to decrease boat weight to the minimum class weight. Coring is limited to within 1 ft of the hull.
3-5 Spars and Rigging:
3-5.1 Mast Requirements
3-5.1.1 The mast shall be of aluminum alloy of no less than
1.123 pounds per foot. Mast must be stepped on the deck as prescribed in the original
drawings by Tom Wylie, Naval Architect. Approved sections shall be limited to: the
original Ballenger section - dimensions of 3.95 inches x 2.63 inches, the Dwyer section -
dimensions of 3.75 inches x 2.25 inches, or the new Ballenger section - 4.0 inches x 2.6
inches. The mast shall not be tapered.
3-5.1.2 There is to be a single set of inline spreaders located 11 feet above the mast base. The length of each is to be 22 inches mast to tip for the original Ballenger and the Dwyer sections. The new Ballenger section shall have inline spreaders, the length of each is to be from 20.5 to 22 inches mast to tip. Spreaders are to be located 11 feet above the mast base. All mast sections may have spreaders angled back so long as the uppers, where they pass through the spreader tips are not aft of the mast section. Forward sweep is not allowed.
3-5.1.3 The deck at the mast base is used as a basis for all
measurements. The thickness of the tabernacle is to be considered as part of the total
mast length for measurement purposes.
3-5.1.4 The upper point of "I" is to be defined as the
highest of either:
A. The intersection of the centerline of the jibstay with the forward face of the mast, or
B. the bearing point of the highest headsail halyard.
The upper point of "I" is to be a maximum of 20'09" above the deck at
the mast base.
3-5.1.5 The headstay shall be 6'6" forward of the front face of
the mast, measuring on a horizontal plane.
3-5.1.6 Upper Mast Band: A 1/2" contrasting band is to be painted
on the mast to limit the mainsail height. The lower edge of this band is to be a maximum
of 26'01" above the mast base.
3-5.1.7 Lower Mast Band: A 1/2" contrasting band is to be painted
on the mast, the upper edge of which should be 2'4" above the mast base. The purpose
of this band is to control boom height; A horizontal line projected by the top of the boom
should be no lower than the upper edge of this lower band.
Note: The distance between the lower edge of the upper mast band and
the upper edge of the lower mast band shall not exceed 23'9".
3-5.1.8 Mast Modifications
A. Centered in the area of the headstay and jib halyard fitting, a
piece of aluminum no thicker than the mast section and no more than 14" long by
4" wide front to rear, may be riveted or otherwise fastened externally to the spar.
The intent of this reinforcement is to prevent the spar from cracking at the top forward
area near the headstay fitting.
B. Measuring from the bottom of the mast, an internal sleeve may be added up to a
point no higher than 5'. The sleeve shall be of aluminum and no thicker than the mast
section. It should be riveted or otherwise fastened internally to stiffen the mast at the
gooseneck, spinnaker pole ring, and halyard exit slots.
3-5.2 Boom Requirements
3-5.2.1.1 The boom shall be of aluminum alloy of no less than 0.95
pounds per foot. Dimensions are 3.27" x 2.51".
3-5.2.1.2 No holes other than those required for control lines and/or
for fastening equipment to the boom shall be added (lightening holes are prohibited).
3-5.2.1.3 There shall be a 1/2" contrasting band to limit the
mainsail foot; the forward edge of the band shall not be more than 10' from the aft edge
of the mast. The band must be permanent in nature.
3-5.3 Spinnaker Pole and equipment requirements
3-5.3.1 The spinnaker pole of two-jaw configuration shall be no more than 8'6" in overall length including ends. Alternative spinnaker pole configurations shall extend not more than 8’ 6”, as measured from the center of the forward face of the mast to the outmost end of the pole, on any point of sail. The pole is to be of aluminum alloy tubing, no less than 1.5" diameter
3-5.3.2 One fixed spinnaker pole eye is permitted. The pole eye should
be a Nico Fico model 723 or its equivalent in dimension and strength. Mounting of the pole
eye should be 3'3" above mast base and centered on forward face of the mast. When deployed, the mast end of the spinnaker pole shall be secured to the mast at a fixed height of 3’3” above the mast base, as measured to projected center of the pole diameter. Any means of adjusting the height of the pole on the mast is specifically prohibited
3-5.3.3 Any system for automatically deploying the spinnaker pole through the use of running rigging, levers, or any other means is specifically prohibited.
3-5.3.4 Spinnaker Gear:
A. The spinnaker halyard, topping lift, and foreguy blocks and cleats
may be mounted anywhere on the mast or cabin top. The foreguy lead block may be mounted on
the foredeck.
B. The foreguy may be double ended, and its placement is under no
limitations.
C. One set of fixed spinnaker sheet blocks may be mounted on the deck.
Blocks may also be mounted through the deck, but they must be outboard of the hull. The
blocks may not penetrate the deck to the interior.
D. One pair of spinnaker blocks and two sets of cleats per side, may be
mounted on the deck. For the purpose of these rules, a pair is defined as one lead block
and one turning block. If blocks are to be mounted through the deck, they must be outboard
of the hull, and not penetrate the deck to the interior.
E. Spinnaker sheet twings or guy hooks are allowed.
F. The spinnaker shall be hoisted no higher on the mast than 6"
above the hounds.
3-5.4 The standing rigging,with the exception of the backstay, shall be per sail
plan
#03-03-06, as revised January 1982, and shall use 1/8” – 1 x 19
wire. The
upper bearing point of the upper shroud can be a maximum of 20’9” above the
base
of the mast. The backstay can be any material and shall be a minimum of 1/8
inch.
3-5.5 Headfoils, gemini foils, and twin stays are allowed, but twice
their width
shall be added to the headsail LP.
|
home
