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Updated 02/16/07

INTERNATIONAL HOBIE CLASS ASSOCIATION GENERAL RULES

ISAF International Classes are the HOBIE 14,16,17,18 and HOBIE Tiger

1 ONE-DESIGN CLASS RACING
  The design and development of Hobie Catamarans are directed towards strict one-design classes where the true test is between sailors and sailing skill, and not boats. Any alterations to the hull form, construction, equipment, spars, sails or running rigging, as supplied by the builder except as is specifically authorized by these rules, are a breach of these rules, both in spirit and in substance, and are prohibited.
2 INTENT AND OBJECTIVE
  Hobie Catamarans are designed to be easy to sail with the least amount of trouble to owners. Boat and component changes, which have no direct bearing upon boat speed, are the only changes allowed. The intent and objective of the INTERNATIONAL HOBIE CLASS ASSOCIATION (IHCA) RULES are:
  a) To keep each boat as equal, simple and cost free as possible by rigidly maintaining, without deviation, the one-design features of the Hobie Cat for class racing.
  b) To increase boat speed only through the use of racing tactics and sailing skills
2.1 DEFINITIONS
  a) The International Hobie Class Association shall hereafter be referred to as IHCA.
  b) Hobie Cat USA, Hobie Cat Europe and any of their licensees that are in good standing with their respected licensors shall hereafter be referred to as HOBIE CAT CO.
  c) International Sailing Federation shall be referred to as the ISAF.
  d) The International Sailing Federation Racing Rules shall be referred to as the RRS.
3 MEASUREMENT AUTHORITY
  The IHCA and its designated measurers are the measurement authority for the Hobie Class under the meaning of RRS 64.3 b). The IHCA has the right to declare ineligible any Hobie Cat which does not conform to the spirit, objective and intent, as well as the letter of these rules and the official drawings and specifications held by the ISAF. In the event the drawings are not held by the ISAF they shall be held by the respective HOBIE CAT CO.
4 LOOPHOLES
  IF YOU THINK YOU HAVE FOUND A LOOPHOLE, READ THE PRECEDING STATEMENTS AGAIN. THESE ARE THE BASIS OF THE RULES AND COVER ALL AREAS NOT COVERED IN THE RULES. GENERALLY, IF YOU CANNOT FIND IT LISTED IN THE RULES, IT IS NOT CLASS LEGAL. IF YOU ARE IN DOUBT, CHECK WITH THE IHCA FIRST. APPROVAL MUST BE IN WRITING.
5 MANUFACTURER OF HOBIE CATS
5.1 Boats and component parts as originally manufactured by the HOBIE CAT COMPANY are the only ones legal for class racing unless specifically permitted in these Class Rules. The manufacturing origin and trademarks of all boats shall be readily identifiable through serial numbers, hull numbers, sails and cast parts. Copies of original invoices or warranty cards may be requested. Proof of origin shall be submitted to the IHCA or its authorized representatives for verification upon request of the jury or protest committee. Skippers or owners of boats who have had the manufacturing origin of their boat or component parts protested shall have a maximum of two weeks to produce acceptable proof of origin.
5.2 The ISAF plaques shall be permanently affixed to the transoms for all ISAF recognized classes built after January 1, 1990.
6 NON HOBIE CAT COMPANY MANUFACTURERS OF EQUIPMENT
Manufacturers and distributors of non Original Equipment Manufacturer (OEM) parts and equipment for Hobie catamarans shall obtain written approval from the IHCA prior to their parts and equipment being designated as "Hobie Class Legal."
7 DESIGN FEATURES AND APPROVED CHANGES
  Nothing may be changed or removed from any Hobie Cat that will in any way alter the structural integrity, design function, or built in safety features of the boat. All changes shall have prior written approval. Provided they do not change the basic design and configuration, approved changes are: stronger gudgeons; stronger pigtails; larger diameter wires and running rigging; reinforced flanges not affecting water flow. Except as allowed in these rules, any changes or additions that in any way can be construed as speed devices are not class legal.
8 SAFETY EQUIPMENT
8.1 Each person on board shall carry a lifesaving device or Personal Flotation Device (PFD) approved by their country's national authority or by the national authority having jurisdiction. The IHCA strongly recommends that life jackets or PFDs be worn at all times.
8.2 A minimum* 3/8 in. (9.53 mm) diameter righting line or webbing consisting of at least one 14 ft. (4.27 meter) length of line or webbing, or two 8 ft. (2.44 meter) lengths of line or webbing shall be securely attached and readily accessible from each side of the boat. The righting lines or webbing shall be in addition to all other required equipment. (Unless specified differently in individual boat class rules)
  * Righting water bags, shroud lengthening devices, righting pole type devices, and righting systems other than the minimum system specified may be carried and shall be used for righting purposes only.
8.3 A paddle or equivalent is allowed and recommended but not required.
8.4 An anchor is not required.
8.5 Any additional equipment which may be required by a government or national authority having jurisdiction
9 HULLS, DECKS, AND RUDDERS
9.1 Hulls may be rubbed, waxed, sanded or buffed in the normal process of maintenance.
9.2 No friction-reducing agents may be employed on the hulls, rudders or boards.
9.3 Hull bottoms which wear down may be rebuilt. Rebuilt hulls must conform with the original shape. Templates are available from the HOBIE CAT CO.
9.4 No portion of the deck, or deck flange where present, shall be altered, removed, cut down, or in any way modified except as allowed herein. The rear transom flanges, where present, may be notched a maximum of 2 ins (5 cm) to accept larger gudgeons or to repair breakout at the rudder pin. Water tight deck access portholes may be installed.
9.5 Hull flotation blocks as supplied by the HOBIE CAT CO. shall not be removed or reduced in size.
9.6 Non-skid surfaces on decks may be changed provided the non-skid surface is at least equal in size and location to the originally designed area.
10 RUDDERS AND RUDDER ASSEMBLIES
10.1 HOBIE CAT CO. supplied rudder assemblies and rudder blades shall not be modified except for minimum filing to improve fit and function unless specifically allowed in the individual boat rules.
10.2 Shims may be installed between the rudder blade and rudder housing to improve fit and function.
10.3 Shims or bushings may be installed between rudders pins, gudgeons, and castings to improve fit and function.
10.4 Shock cord may be tied around the rudder to help control rudder kick up.
10.5 Rudder rake adjusters may be installed and upgraded to current HOBIE CAT CO design.
10.6 Rudder blades may be notched on the upper leading edge up to a maximum of 1/2 in. (12.5 mm) to correct helm.
10.7 The minimum weight of each rudder blade shall be 3.0 lb. (1.36 kg)
10.8 Rudder pins may be changed provided the length and diameter of replacement rudder pins are at least the same dimensions or greater than as supplied by HOBIE CAT COMPANY. Pins may be made of plastic, aluminum, nylon, composite, or stainless steel materials.
11 TILLER ASSEMBLIES
11.1 The tiller extension may be either an extendable or non-extendable design but shall be a single tiller with one end connected to the crossbar in the same location as the factory supplied tiller. THE TILLER EXTENSION SHALL BE MADE OF A NONELECTRICAL CONDUCTIVE MATERIAL ON ALL NORTH AMERICAN REGION BOATS. NONELECTRICAL CONDUCTIVE TILLER EXTENSIONS ARE RECOMMENDED ON ALL BOATS WORLDWIDE.
11.2 Tiller crossbar and rudder arm connectors and end caps may be replaced with other types that are functionally similar.
12 SAILS
12.1 Class legal sails shall be made from HOBIE CAT CO official patterns and manufactured and distributed by the HOBIE CAT CO or their currently licensed sail makers unless specified differently in individual boat class rules.
  a) A sail may be recut slightly, provided the overall original size and shape is not increased or altered other than by normal stretch with aging and sail tuning.
  b) Windows and telltales may be added as desired.
  c) A Cunningham may be installed in any sail.
12.2 Only standard battens supplied by the HOBIE CAT CO shall be used unless specified differently in the individual boat class rules. Battens may be custom cut and tapered as desired.
  a) Any type of batten caps may be used provided they are not adjustable while sailing.
  b) Two battens may be used in the bottom batten pocket of the mainsail.
12.3 A skipper shall not change sails during a race or regatta unless his sail has been damaged and is no longer usable. Permission to make a sail change must be received, in writing, from the race committee PRIOR to the change being made.
12.4 All mainsails shall have a sail number assigned by Hobie Cat Company and registered with the IHCA. Duplicate numbers will be assigned to only one individual boat. National letters may be added and shall be displayed on the mainsail above the sail numbers and below the class insignia. Changes RRS Appendix H.
  a) Sail numbers shall be no less than 10 in. (25.4 cm) in height. This changes RRS Appendix H 1.2 (b).
  b) Sail numbers shall be distinguishable on both sides of the sail.
12.5 All mainsails shall bear the Hobie "H" registered trademark logo, which is the class insignia.
12.6 Friction reducing devices may be applied to, or attached to, the luff rope to help with raising and lowering the sail.
12.7 Any grommet on a Hobie sail may be replaced as long as it is with an equal size or larger grommet located within 3 in. (7.6 cm) of the original location.
12.8 Reefing is permitted and may be rigged in any manner except in the North American Region where the mainsail wire halyard shall not extend below the COMPTIP.
12.9 Sail numbers consecutively assigned by Hobie Cat Company may be one to six digits in length. Letters and numbers are not required on headsails and spinnakers but when used shall be the same number as on the mainsail. This changes RRS Appendix H.
13 MASTS
13.1 The section of the mast extrusion shall not be altered in any way except as provided for in 13.4.
13.2 Minimum filing or cutting to the mast step casting is permitted for the purpose of improving rotation, but metal shall not be removed for the purpose of achieving mast rake. Stops may be added to replace the standard mast stops but shall not be adjustable.
13.3 No internal devices are allowed except as supplied.
13.4 A COMPTIP shall be mandatory for the North American Region with the exception of the Hobie Tiger which shall be raced worldwide with an aluminium mast. All sailors will be allowed one exemption to this rule. After the one exemption is granted, the onus is on the individual to prove that an attempt has been made to obtain a COMPTIP. In the case of factory back orders on COMPTIPs, temporary exemption will be granted upon proof of such back order and only until back order is filled. COMPTIP and aluminum masts shall be legal in the North Pacific, South American and International Regions. All aluminum masts are mandatory in the South Pacific, Southern Africa and European Regions with the exception of the H-17 in Europe where COMPTIP and ALUMINUM masts are legal for H-17 boats manufactured before 1 January 1995 and Hobie 17 CompTip masts shall be mandatory in the South Pacific Region. Hobie 18 all aluminum masts shall be mandatory in the South Pacific Region.
14 BOOMS
14.1 The section of the boom extrusion shall not be altered in any way.
14.2 Boom bales for the purpose of hanging mainsheet blocks may be added, deleted or relocated.
14.3 No internal devices are allowed except as supplied.
15 WIRES
15.1 Wires as supplied by the HOBIE CAT CO. shall not be reduced in diameter. They may be increased in size. All wires may be shortened or lengthened with exception of bridle wires.
15.2 Shrouds and forestays shall connect to the HOBIE CAT CO. supplied shroud adjusters. The twist toggle shall not be removed and must be used as supplied.
15.3 An additional shroud adjuster may be added to the forestay in lieu of changing wire length.
15.4 The clevis pin and ring on the forestay adjuster, as provided by the HOBIE CAT CO., may be replaced by a quick-release pin, shackle or like equipment.
16 EQUIPMENT
16.1 A single boom vang may be added. It may be attached to the base of the mast and/or be movable from side to side on the front crossbar for use as a preventer. Vangs shall not travel on tracks or wires which can be fastened to both sides of the boat simultaneously. The maximum purchase shall not exceed 3:1.
16.2 Any sheet or lines made in whole or part of wire are prohibited except as supplied by the HOBIE CAT CO. Any sheet or lines may not be spliced to increase or decrease diameter and the core cannot be removed to decrease diameter.
16.3 Compasses, navigation and speed metering equipment of any type are permitted. Radios may be used for weather information and for emergencies under the following conditions: On board radios shall be turned OFF and stored from 1/2 hour prior to the boat's Class warning signal of the first race of the day until after the finish of the last race of the day unless there is an emergency, or unless specified otherwise in the Notice of Race and Sailing Instructions.
16.4 Main, boom and jib sheet blocks of different design or make may be used provided the purchase advantage remains equal to or less than 7:1 on the mainsheet system and 3:1 on the jib sheet system unless specified otherwise in individual boat class rules.
16.5 Mesh and canvas trampolines manufactured by the HOBIE CAT CO. are class legal.
  a) Trampolines may be reversed end for end if desired.
  b) Storage pockets and flaps to prevent water spray may be added.
  c) A second set of hiking straps may be installed and altered as desired.
  d) Hiking straps shall not be adjustable while on the water.
  e) A trampoline may be comprised of one to three pieces.
16.6 Tools and personal convenience accessories may be carried on board and may include: telltales; toolkits; non-skid; wind indicators; stow bags; beverage coolers; food and beverages; etc. If in doubt on any item not listed, refer to General Class Rule 4.
16.7 Epoxy adhesive may be applied to the frame castings for the purpose of stiffening the boat.
16.8 No swivel connectors are allowed unless supplied as original equipment or allowed in the individual boat Class Rules.
17 CREW AND CREW WEIGHT
(Where Class Rules require a minimum weight)
17.1 The word "crew" includes all personnel aboard the boat.
17.2 The same crew shall be used throughout the race or regatta. Crew shall not be added or removed without prior written permission from the race committee.
17.3 If a crew change is required due to injury or other special circumstances, the crew weight shall not be less than the original weight and not more than 10 lbs. (4.54 kg.) over the original weight unless approved by the race committee.
17.4 A maximum of 50 lbs. (22.7 kg.) of permanent dry (solid) weight may be carried on the boat to bring crew weight up to the minimum.
  a) Weights may be moveable but shall be attached to the boat. This changes RRS 51.
  b) If more than 50 lbs. (22.7 kg) are needed to make minimum weight, an additional crew person shall be carried.
17.5 Minimum crew weights are based on the body weight of the crew dressed in lightweight clothing without shoes.
  a) No wetsuits or heavy clothing shall be used in determining crew weight.
  b) The crew shall maintain minimum crew weight at all times. If required, the crew may have to add weight during a regatta to maintain minimum crew weight.
  c) Boats and or/crew can be protested at any time during the regatta for minimum weight infractions.
17.6 Weights required to meet minimum crew weight shall not be usable for any other purpose.
17.7 For the purpose of Youth Events, crew attaining his or her 19th birthday before the end of the year in which the event is sailed is ineligible unless otherwise prescribed in the Notice of Race or Sailing Instructions.
17.8 For the purpose of Youth Events, the minimum weight for all Youth double handed disciplines shall be 250 lbs (112.5 kg).
18 PERSONAL BALLASTS, CLOTHING AND EQUIPMENT
18.1 The IHCA permits a maximum 22.0 lbs. (10 kg) of wet clothing and equipment per crew member to be worn. This changes RRS 43.1(b).
  a) Any competitor wearing such personal ballast is required to also wear a personal flotation device capable of flotation of both the wearer and the wet clothing and equipment.
  b) Weight and water jackets for the purpose of adding personal ballast are not permitted, shall not be considered clothing or equipment, and shall not be allowed for meeting minimum crew weight.
18.2 Any clothing or equipment worn under Rule 18.1 shall not be allowed for meeting minimum crew weight.
19 MINIMUM BOAT WEIGHTS
19.1 The minimum boat weights shown in the individual Class Rules are for each class of boat, ready to sail, with all permanently attached and non movable racing equipment EXCLUDING the following:
  a) Cushions
  b) Life jackets
  c) Trapeze harnesses
  d) Tool bags
  e) Personal gear
  f) Crew weight
19.2 All weights required to bring a boat to minimum weight shall be permanently attached during a regatta and shall not be usable for any other purpose.
20 ADVERTISING
20.1 Advertising is allowed in accordance with RRS 79 and ISAF Advertising Code, Category C, unless the Notice of Race and Sailing Instructions designate otherwise.
20.2 In world and continental events a competitor shall be required to display advertising in  accordance with RRS Appendix G, the Notice of Race, and the Sailing Instructions.
ALTERNATIVE PENALTIES FOR RRS PART 2 RULE INFRINGEMENTS
21 IHCA 360-DEGREE RULE
21.1 The 720 degree Turns Penalty in RRS 44.1 and 44.2 is replaced by a 360 degree Turns Penalty. Changes RRS 44.1 and 44.2
  a). A 360-degree Turns Penalty consists of one tack and one gybe, or one gybe and one tack, before resuming course.
  b). When the infringement occurs after the preparatory signal and before the starting signal is made, the infringing boat shall make one 360-degree Turns Penalty on either side of the starting line following the starting signal as soon as possible after clearing all other boats. (This modifies RRS 44.2.)
21.2 When neither boat acknowledges fault, a protest may be lodged in accordance with RRS Part 5 and the sailing instructions.
21.3 The protest time limit to file a protest will be (determined by local conditions) after the last boat in the last race of the day sailing directly to shore reaches the shore. Changes RRS 61.3.
22 SCORING, PENALTIES AND PENALTY SCORING
22.1 Scoring, penalties, and penalty scoring are as described in the RRS unless changed in the Notice of Race and Sailing Instructions.
22.2 All boat, crew weight, and equipment violations are scored DND - Disqualified No Discard. Whenever possible, competitors should be warned of potential equipment violations on the beach before racing when observed by other competitors, the jury, or regatta officials.
23 JURISDICTION OF RULES
  All regattas held within regions under the jurisdiction of the IHCA shall be governed by: the RRS; these IHCA Rules; the prescriptions of the National Sailing Authority having jurisdiction where they apply; the Notice of Race; the event Sailing Instructions.
24 SIGNALING A PROTEST
  A boat protesting another boat shall follow RRS 61.1(a) with the following modification: The ISAF requirement for under 6 meter boats applies to all Hobie Catamaran Classes.
25 RULE INTERPRETATIONS
  Valid questions regarding these rules may be ruled on an interim basis by the IHCA Rules Committee Chair or the IHCA Rules Committee Chair designee. The interim rulings, as needed, will be accepted, rejected or modified by the IHCA Rules Committee and ratified by the IHCA International Council and approved by the ISAF before achieving permanent status in the IHCA Class Rules.
26 RULE AMENDMENTS
26.1 Suggestions, recommendations or requests for rule additions, deletions or amendments shall be submitted in writing to the IHCA Rules Committee. The proposals will be reviewed by the Rules Committee, and if found to have merit, be distributed for comment to: Hobie Cat sailors; IHCA International Council members; IHCA Regional Associations; and other interested parties. Following the comment period the IHCA Rules Committee will make a rule recommendation and submit it to the IHCA International Council for consideration. The Council shall accept or reject the Rules Committee recommendation and submit IHCA approved changes to the ISAF for approval. Interim or emergency rulings made by the Rules Committee Chair or Rules Committee as a whole will use the same approval procedure as outlined herein before they receive approved rule status,
26.2 Any proposed new class rules, rule changes or amendments requesting comments, and all new rules and interpretations shall be announced in one or more of the following ways:
  a) An international mailing or individual Email to all IHCA members for General Rule changes, or international mailings or individual Email to individual boat class owners for rules only impacting the individual class.
  b) Prominent display on the IHCA web page requesting comment from Hobie Cat sailors and other interested parties.

 

 

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