Racing Rules of Sailing 2021-24
http://www.sailing.org/documents/racingrules/index.php
Platu Class rules 2018 onwards
Link http:www.sailing.org/tools/documents/PLA25CR270218-[23644].pdf
Thailand amendments to the Platu International Class Rules 2018
issue 9…. July 2026
Platu Class Rule Amendments – Platu Thailand OMJ Series All boats shall be in compliance with the class rules, including mast and all deck hardware. Unless stated below. If an item is deemed Not Applicable then there is no restriction in place.
Section B – Boat Eligibility Description Section B outlines the rules and requirements for a boat to be eligible to race, including which official documents and markings are required for this event. Not Applicable: • B.1.1(b) – Certificates: The boat shall have a valid boat certificate. •
B.1.1(c) – Certificate marks: The boat shall have valid certification marks. • B.2.1 – Buttons: All sails shall carry the Platu 25 class sail button.•B.2.2 – ID stickers: All masts shall carry the Platu 25 class mast sticker.
Section C – Conditions for Racing Description Section C covers the rules that apply while racing, including crew limitations, mandatory safety gear, and rules regarding advertising, boat weight, and the number of sails carried on board. Amendments to Class Rules:
• C.4.1 Advertising: Advertising is permitted on up to 50% of each sail, but must not obstruct the class insignia, national letters, or sail numbers. • C.4.2 Advertising: All advertising must be approved by the Thai Platu Class Association and Ocean Marina Jomtien prior to racing. • C.5.1 (a) (6) Portable Equipment: Emergency flares are optional, not mandatory. • C.6.1(t) Boat Weight: Any bunk hatch covers may be in place. • C.6.2(a) Corrector Weights: Corrector weights, if needed, shall be installed as shown in Drawing 1 of the class rules. Weight added before October 1, 2025, may be cement. • C.7.2.1 (b) Hull: Any bunk hatch covers. • C.7.3 (b) 4 Hull: Bilge pump fitting may be faired in. • C.10.2 (a) Sails: Not more than one mainsail, a minimum of two jibs (with a maximum of three jibs), and not more than two spinnakers shall be carried on board while racing. • C.10.3 Mainsail ID (a): Insignia, national letter, and number are preferred.
• Toilet: If installed, the toilet can be removed. Alternatively, it can be assessed with a weight of 10kg, which will not be included in the total weight of the boat. Not Applicable:
• C.10.1 (b): Sails may be repaired during an event after written permission has been received from the event Technical Committee. • C.10.2 (b) & (c): Sail usage during an event is limited. • C.10.4 (a): Spinnaker identification shall comply with RRS Appendix G. Section D Hull Description Section D details the rules regarding the boat’s hull, including its construction, fittings, and required identification marks. Amendments to the Class Rules: • D.2.4 (b) Builders Number: The builders number will be displayed on the transom. •
D.5.1 (a) Fittings: Wire may be replaced with a rope substitute (e.g., Dyneema) with an equivalent minimum breaking strain of 3mm wire. A sturdy, 10-liter minimum, bucket, and sponge may replace a bilge pump. • D.5.1 (b) Fittings: A jib cunningham system is allowed with a 1:1 jib halyard ONLY. Not Applicable: • D.2.4 (a) WS Plaque: The hull shall carry the WS Plaque permanently placed at starboard side, inside the cockpit near the transom. Section F Rig Description Section F covers the requirements for the boat’s rig, including the mast, standing and running rigging, and spinnaker pole. Amendments to the Class Rules:
• F.3.4 Dimensions: Spinnaker pole eye fitting may be fitted between 2,150 mm and 2,500 mm above the mast datum point. • F.6.1 Materials: Dyform wire is allowed. • F.6.3 Forestay fittings (a) (1): Amended to allow a turnbuckle or plate/holes/pins on the forestay. • F.7.2 (b) (3): Headsail Cunningham system can be substituted with a 2:1 halyard. Not Applicable: • F.2.3 Rig Certificate: Certification is required for the mast.
Section G Sails Description Section G provides details on the sails allowed for the race, including materials, construction, and certification requirements. Amendments to the Class Rules: • G.2.1 Conformance: (a) and (b) shall conform to class dimensions and measurements listed in this section. • G.2.2 Certification: (a) and (b) Certification is not required. • G.3.2 Materials: Dacron, Mylar, Aramid, and polyester fiber laminated ply is permitted. • G.4.1 Materials: Dacron, Mylar, Aramid, and polyester fiber laminate is permitted for the light and medium jibs. Dacron only is permitted for the heavy jib. Windows may only be fitted in the light and medium jibs.
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