Sailing: CC21 Class Rules
One Design Class Association – Class Rules
1.1 The Christmas Cove One Design (CCOD) is a one design class created to fulfill the diverse need for recreational sailors such as one design racing, handicap racing, and day sailing. These rules are intended to preserve important design characteristics: Ease of handling, low cost of ownership, safety and comfort.
1.2 Except where variations are specifically permitted, yachts of this class shall be alike in hull, deck, keel, rudder and mast construction, weight and weight distribution, sail plan and equipment.
1.3 All yachts should comply with Official Plans A,B,C,D&E building specifications and the Class Rules. No modifications are permitted unless explicitly stated in the current rules.
1.4 Alterations in the Class Rules shall only be permitted after approval is voted by a majority of current boat owners.
1.5 It is recognized that a “Hodgdon Brothers 21” (HB21) does not conform to these Class Rules. In the interest of encouraging racing however, an HB2l constructed prior to 1970 shall be allowed to race against the CCOD on a level basis in local events providing 1.) CCOD sail specifications are complied with, and 2.) no major modification has been made to the HB21 making it substantially different than its original design. In major regional or national regattas the CCODCA may decide to exclude the HB21.
2.1 The authority of the class shall be the Christmas Cove One Design Class Association (CCODCA). The Association shall be comprised of owners of the CCOD. The Association shall meet on a regular basis to administer the Rules. It shall elect a President and Technical Committee
2.2 In these Rules the word “shall” is mandatory. The word “may” is permissive.
2.3.1 It is the owner’s responsibility in general to ensure that his yacht complies with the Class Rules before major regattas or series. The Class Association may require that all yachts be measured. At that time yachts which do not comply with the Class Rules shall be modified to do so before being allowed to race.
2.3.2 Yachts may be measured at any time in response to a protest. Yachts which are found not to comply with the Class Rules shall be disqualified from the race, series, and regatta being sailed.
2.3.3 Yachts shall be measured by a member of the CCODCA Technical Committee or by an individual designated by that Committee.
2.3.4 The minimum hull weight (including keel, rudder, deck, hardware, and floorboards but excluding mast, boom, standing and running rigging, sails, anchor, etc.) of a CCOD shall be 2180 pounds.
2.3.5 Tolerance in measurement in the Rules and measurement plans are to provide for minor building errors or age distortion.
2.3.6 CCOD’s built before 1989 shall have a period of one year to comply with the Class Rules.
3.1 General: The hull, deck, interior layout, keel, rudder, sail plan and basic fittings shall conform to the building specifications, class and official plan A, B, C. D and E.
3.2.1 The hull and deck shall be molded in glass reinforced plastic to the building specifications of lamination in molds supplied by the CCODCA.
3.2.2 Prohibitions: The following are not permitted:
A. Coring, drilling out, rebuilding, replacement of materials, grinding or relocating standard equipment in any way to reduce weight, to improve moments of inertia or to change standard shapes.
B. Reshaping of the hull profiles or contour.
3.3.1 The keel shall be molded lead to the building specifications and cast in a mold supplied by the CCODCA.
3.3.2 The external dimensions and configuration of the keel shall comply with the official keel drawing and table of offsets contained in Official Plan B.
3.3.3 The upper surface of the mast step shall not be more than 25 1/4″ and not less than 22″ below the lower surface of the deck.
3.4 Rudder and Tiller
3.4.1 The external dimensions and configuration of the rudder shall comply with the official rudder drawing and table of offsets contained in the Official Plan D.
3.4.2 The weight of the rudder including fixed fittings shall not be less than 32.5 pounds.
3.4.3 Rudder fairings may be fitted.
3.4.4 The tiller shall be made of wood. Tiller extensions of any material may be fitted.
Back to Top of Page
3.5.1 The spars shall be of aluminum extrusion. The mast extrusion shall be of a minimum size equivalent to “Zephyr #3″. The boom extrusion shall be of minimum size equivalent to ”Zephyr #2”. No alteration or modifications to the spar extrusions are permitted except to facilitate the attachment of rigging and fillings as specified in these rules and indicated on Official Plan E.
A. Rotating masts are not permitted.
B. The distance from the forward surface of the mast at deck, measured horizontally to the stem at sheerline, shall not be more than 7’6” or less than 7’5” inches.
C. The mast shall be fixed at the keel and be chocked at deck level and shall not be altered while racing.
D. Distinguishing contrast colored bands of a minimum width of 3/4″ shall encircle the mast. The distance from the upper edge of the lower band (at standard boom height) to the lower edge of the upper band shall not be more than 25’9”.
E. One spinnaker boom attachment fitting is permitted. Its height maybe adjustable, but the maximum height shall not be more than 7’6″ above the mast step.
3.5.3 Standing Rigging
A. The mast standing rigging shall consist only of one forestay, one back stay and optional backstay bridle, two upper shrouds and two lower shrouds. The standing rigging shall be of stainless multi-strand wire. All standing rigging shall be not less than 5/32″.
B. The forestay shall be fixed between 1.) a point on the forestay fitting of the mast bracket not more than 24’10” or less than 24’8″ from the surface of the mast step and 2.) a point not more than 1″ above the deck and not more than 15″or less than 14″ aft of the intersection of the stemline and the sheerline.
C. The distance from the forestay fixing points on the mast bracket to the forestay fixing point on the foredeck shall not be more than 23’6″ or less than 23′.
D. The forestay and shrouds shall not be adjusted while racing.
E. The backstay shall be fixed to the masthead crane and to the transom or backstay bridle.
F. The upper shrouds shall be fixed to the mast and intersect the surface of the mast not more than 24’11” or less than 24’10” above the surface of the mast step. They shall bear on the spreaders and be fixed to the chainplates.
G. The axis of the spreaders shall intersect the surface of the mast at a point not more than 14’1″or less than 13’11” above the surface of the mast step.
H. The length of the axis of the spreaders from the surface of the mast to the lowest point of the lower shrouds shall not be more than 28″ or less than 27″.
I. The spreaders shall freely pivot on a bearing at the surface of the mast.
J. The lower shrouds shall be fixed to the mast and intersect the surface of the mast not more than 14’1″ and not less than 14′ above the surface of the mast step and shall be fixed to the chain plates.
3.5.4 Running Rigging
A. One spinnaker halyard, not less than 1/4″ in diameter, bearing on the mast not more than 25’8″ above the mast step.
B. One mainsail halyard of wire or rope not less than 3/16″ in diameter.
C. One jib or genoa halyard of wire or rope not less than 3/16″ in diameter, which shall not intersect the mast above the intersection of the extension of the forestay and the mast surface.
D. One vang of rope not less than 1/4″ in diameter contained in a 4:1 power ratio tackle.
E. One spinnaker pole downhau1 of rope not less than 1/4″ in diameter.
F. One mainsail outhaul of wire and/or rope with not more than 6:1 power ratio.
G. Cunningham controls of rope using a maximum of 6:1 power ratio, which may include a single wire strap for attachment to the mainsail or headsail not be more than 23’6″ or less than 23′.
H. One backstay adjuster of tackle of not less than 1/4″ diameter rope. The power ratio of the tackle may not be more than 6:1, if attached directly to the transom, or more than 4:1 if attached through backstay bridle blocks.
I. Two mainsheet traveler control lines of rope, with a maximum of 2:2 power ratio.
J. One mainsail mainsheet of rope not less than 3/8″ diameter, passing through a tackle of not more than 4:1 power ratio.
K. Headsail sheets of not less than 3/8″ diameter.
L. Reefing lines of rope not less than 3/16” diameter
M. One spinnaker boom uphaul of rope not less than 1/4″ in diameter.
3.5.5 Main Boom
A. The boom shall not be tapered or permanently bent.
B. The boom may be fitted with attachment points only for an adjustable outhaul, topping lift, two mainsheet fiddle blocks, vang, downhaul, and reefing equipment.
C. A distinguishing contrast colored band of minimum width of 3/4″ shall encircle the boom and its forward edge shall not be more than 11’0″ from the aft surface of the mast when the boom is held at right angles to the mast.
3.5.6 Spinnaker Boom
A. The overall length of the spinnaker boom including fittings shall not be more than 7’6″
B. The weight of the spinnaker boom including fittings shall not be less than _ pounds.
3.6.1 A maximum of one each mainsail, genoa, jib and spinnaker shall be used in any single race.
3.6.2 Sail measurements shall conform to the most recently published IYRU/USYRU sail measurement standards except when otherwise specified herein. Measurements shall be taken with sufficient tension along directions of measurement to remove any transverse wrinkles in the cloth.
3.6.3 The mainsail and jib may be made of woven polyester. The jib and genoa shall be made of either woven polyester or polyester film/polyester substrate laminate.
3.6.4 Sails may contain non-woven transparent windows not to exceed a total of 3 square feet per sail.
A. The minimum cloth weight shall be 5.0 oz. per sailmaker’s yard.
B. The luff length shall not exceed 25’9″ and the head shall not be hoisted above the lower edge of the contrasting band near the end of the boom.
C. The foot length shall not exceed 11′ and shall not be pulled past the inside edge of the contrasting band near the end of the boom.
D. The leech length shall not be less than 26’8″ and not more than 27’4″.
E. The maximum width of the head shall not exceed 5.5”.
F. The maximum width of the headboard shall not exceed 4.5″.
G. From the midpoint of the leech to the nearest point of the lift shall not exceed 7’0″ (midgirth).
H. From the midpoint between the point on the leech midway between the mid leech and the head to the nearest point on the luff shall not exceed 4’1″.
I. Any hollows in the leach shall be bridged for purposes of girth measurement
J. The mainsail shall have four battens. The top batten shall not exceed 25″ in length. The bottom batten shall not exceed 27″ in length. The middle battens shall not exceed 30″ in length. The centerline of the top batten shall at no point be closer to the head than 5’1.5″.
A. The minimum cloth weight shall be 3.0 oz./yd.
B. The1eng1h of the luff shall not be greater than 20’6″ or less than 19’6″.
C. The length of the leech shall not be greater than 19’3″ or less than 17’0″.
D. From the clew to the nearest point on the luff shall not be greater than 7’8″ (Luff Perpendicular).
E. From the midluff to the midfoot shall not exceed l0’7″.
F. The head width shall not exceed 1.5”.
G. No battens are permitted in the jib.
A. The minimum cloth weight shall be 5.0 oz./yd.
B. The length of the luff shall not be greater than 20’6″ or less than 18’6″.
C. The length of the leech shall not be greater than 19’3″orless than 17’0″.
D. From the clew to the nearest point on the luff shall not be greater than 7’8″ (Luff Perpendicu1ar).
E. From the midluff to the midfoot shall not exceed 10’7″.
F. The head width shall not exceed 1.5”.
G. No battens are permitted in the jib.
A. The minimum cloth weight shall be 0.75 oz./yd.
B. The length of the luff shall not be greater than 23’6″ or 1ess than 22’0″.
C. The maximum width shall not exceed 16’0″.
D. The length of the foot shall not be greater than 16’0″or less than 14’6″.
E. The distance between luff mid points shall not be greater than 16’0″ or less than 12’0″,
F. Spinnakers must be symmetrical around their vertical center lines.
3.7 Fixed Fittings And Equipment to be Carrier While Racing
3.7.1 Four headsheet tracks each not more than ___ in length located in positions as indicated on Plan A.
3.7.1. One main sheet traveler track positioned as on Plan A.
3.7.3 The primary sheet winches positioned as on Plan A. They shall not have a power ratio greater than 16:1.
3.7.4 A manual bilge pump and a bucket of minimum capacity 10 quarts.
3.7.5 One anchor of minimum weight 8 pounds, with chain of minimum length 3′ and minimum rode length 100′. Anchor, chain and rode shall remain connected.
3.7.6 One marine type compass.
3.7.7 One fog horn.
3.7.8 Coast Guard approved personal flotation devices for each member of the crew.
3.7.9 An up-to-date chart of the area in which the race is held.
3.7.10 F1oorboards, as indicated in Plan A.
3.7.11 One oar or paddle.
3.7.12 One knife.
4.1 The following are prohibited while racing:
4.1.1 Hydraulic devices including hydraulic vangs, backstay adjusters;
4.1.2 Running backstays.
4.1.3 The use of the foresail halyard to vary the measured length of the forestay.
4.1.4 Headsail roller furling.
4.1.5 Spinnaker guy struts.
4.1.6 Spinnaker chutes through the foredeck.
4.1.7 Electronic navigational aids which compile data and/or compute such parameters as position or course or speed made good. In this category are “Sailcomp” compasses and Loran equipment.
4.2 Equipment which is not forbidden in Part 4.1 above is permitted and optional while racing.
4.2.1 Barber haulers for the headsail sheets. However, tackle shall be limited to a single part of rope which may be attached to headsail sheet by a block, hook or cringle.
4.2.2 Two secondary winches with a power ratio not to exceed 8:1.
4.2.3 The type and location of blocks and cleats for halyards, spinnaker sheets, backstay, cunninghams, outhaul, spinnaker boom, lift, and reefing equipment are optional.
4.2.4 One mechanical wind indicator at the mast head.
4.4.5 One deck fairlead with accompanying cleat port and starboard to be used for spinnaker sheet barber haulers.
4.4.6 Handholds and hiking straps.