HUNGARIAN SAILING FEDERATION

Written István Policsányi and Attila Déry

Approved by Attila Bene and Ádám Farkas

Valid from 16 September 2023

1. General Requirements

1.1 The vessel may be manufactured by anyone.
1.2 By signing the survey sheet, the manufacturer declares that the vessel has been built in accordance with the applicable regulations.
1.3 Only boats with a valid survey and registration form issued by the Technical Committee of the class may participate in the class races.
1.4 The survey and registration form is invalid in the following cases:
· if a change occurs either in the hull or fitting
· if a change occurs in the sail plan
· if the boat does not comply with the class requirements
1.5 The survey is conducted by the surveyor of the class.
1.6 The surveyor is not allowed to survey their own boat, hull, sails or rigging, or if any of the above items made them. In such a case, all three members of the Committee must be present at the survey for verification purposes.
1.7 After the first survey, the owner is responsible for compliance with the class rules
1.8 A race number must be used to identify the vessel and must be displayed on the sail in accordance with the relevant ISAF regulations (It is not compulsory to display the country codes)

2. Hull

2.1 The Dinghy 15 is a sailing boat with a keel and a cabin.
2.2 The Dinghies are equipped with curved ribs, a bow, a stern, a transom, a keel, and a helm.
2.3 The hull must have at least one keel stiffener. This shall form a firm bond between the hull, the masthead, and the keel box.
2.4 The cabin of the vessel must preserve the touring character of the class.
2.5 The installation of air chambers is compulsory (except for wooden vessels). Air chambers are watertight rooms accessible only for conservation purposes.
2.6 Air chambers must be located in such a way that the vessel remains buoyant even when upside down.
2.7 Maximum length: max 6600 mm
2.8 Maximum width: max 2300 mm
2.9 Maximum width of the transom: 1285 mm
2.10 Minimum height of the transom measured at the center line: 440 mm
2.11 Minimum free side-height:
· measured at the bow of the vessel from the top of the deck plane to the waterline: min.770 mm
· Measured at the stern on the center line of the stern transom, from the top of the deck plane to the waterline: 550 mm
2.12 The heel of the stem must be either perpendicular to the deck plane or be at an angle to the stern of the vessel such that the angle of heel does not exceed 22 degrees
2.13 Any construction method not complying with this standard is prohibited.

3. Mast

3.1 The material of the mast shall be wood or aluminum alloy only.
3.2 The use of rotating and bent poles is prohibited.
3.3 The use of support arms of any kind is prohibited. All anchorage points for the sail and the boom shall be within the side decks.
3.4 Stretching of the pole is optional.
3.5 The arrangement of the moving rigging is optional
3.6 The use of trapeze equipment is permitted
3.7 Maximum permissible mast height from deck: max 8000 mm
3.8 Aft mast tensioning (aft stay) is compulsory

4. Sails

4.1 Only sails certified by the surveyor of the class may be used for racing.
4.2 Mainsail:
a) Mainsail foresail length: max 7500 mm
b) Mainsail bottom edge length: max 3500 mm
c) The mainsail may contain 1 cross batten with a maximum length (sail width measured at the batten) of 1420 mm
d) The minimum distance of the mainsail batten from the masthead at the fore edge (top of batten) shall be 1520 mm
e) The minimum distance of the mainsail batten from the masthead at the aft edge (top of batten) shall be 1570 mm
f) Mainsail material shall be Dacron only
4.3 The jib:
a) Jib hoisting height: max 7000 mm
b) Jib bottom edge length: max 3600 mm
c) Distance between the lower anchorage point of the jib and the mast: max 2000 mm
d) The jib material shall be Dacron only
4.4 The spinnaker:
a) Spinnaker side edge length: max 7500 mm
b) Spinnaker bottom edge length: max 5600 mm
c) Spinnaker hoist height: max 7000 mm
d) The material of the spinnaker is optional

5. Additional characteristics

5.1 The type and positioning of the stays on the boat may be freely implemented, unless otherwise specified by the regulations.
5.2 The weight of the hull must be measured dry and clean and must be at least 650 kg, including all firmly installed parts, as well as the spars, rudder, mast, mainsail or spinnaker boom, standing and moving rigging. If the boat weights less than 650 kg, extra weights must be attached (either laminated, bolted, or glued) to the transom. The extra weights must be authenticated by a stamped seal of the class surveyor.
5.3 The material of the keel is optional
5.4 The keel shall be movable around the pin at its front. A solid joint is required between the pivot pin and the cabinet and the keel shall only rotate about the pivot pin, i.e. it shall not be longitudinally slidable. Changing the position of the keel during a race is prohibited
5.5 The helm shall be freely suspended at the stern post and shall be able to be lifted from the deck. The shape and material of the helm is optional
5.6 The material of the spinnaker pole is optional, but only one may be used at a time
5.7 Length of the spinnaker pole: max 2615 mm

16 September 2023 – Siofok, Hungary.