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F14 Rules #36368
08/02/04 10:26 PM
08/02/04 10:26 PM
Joined: Jul 2004
Posts: 17
E
Emmessee Offline OP
stranger
Emmessee  Offline OP
stranger
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Joined: Jul 2004
Posts: 17
Nacra Australia and Hobie are looking at developing an F14, but a set of universal rules have to be implimented.

Is there someone who can help me out here as in Australia, we have guidelines, but no set "Formula" as yet to build a new boat around.


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Re: F14 Rules [Re: Emmessee] #36369
08/02/04 11:34 PM
08/02/04 11:34 PM
Joined: Feb 2004
Posts: 1,012
South Australia
Darryl_Barrett Offline
old hand
Darryl_Barrett  Offline
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Joined: Feb 2004
Posts: 1,012
South Australia
This is the proposition for a “NEW” class/formula for 14’ cats so that ALL commercial and home builders can confidently design and build within this formula and ALL and any designs within these perimeters can race against each other without any “handicap”, but instead for “across the line first wins”. By setting and “standardizing” the maximum dimensions to which a 14’ cat can be built and sailed as a F14 or a 14A, there will be no ambiguity in the future
(It also provides within the “class rules” for existing 14’ cats to race against these “New” F14 and 14A cats)
NB As stated this is a formula for “NEW” designs of 14’ cats, and as such it does not discriminate against any existing “14’ cat!






The “Box rule” governing an F14 catamaran is


1. Length Over All.
LOA of the hulls (excluding any “T foils, rudders and all rudder fittings) 4.3 metres
2. Maximum Beam (Overall)
2.5 metres
3. Mast Height
Mast height is unrestricted, although the mast can only form a percentage of the total sail area of no more than 15% of the mainsail area, i.e. no “solid” wing sail (articulated or not). All the sails shall be of a “soft” fabric type
4. Maximum Sail Area
Including half the area of the mast bounded by the luff length of the main sail, the sail(s) shall not exceed
300 sq feet. 27.87 sqm
This maximum area includes the combination of the areas of ALL sails. The measurements of all the sails shall be by the calculation of the “actual” sail area.
5. Construction
Materials are unrestricted
6. Minimum Weight
(All up sailing weight minus crew) 60 kgs
7. “T” foils
(Not hydrofoils) used primarily, ONLY for the stablelization of pitch, and only if attached to, or forming part of the rudders, or attached to the aft underside of the hull within 300mm of the transoms, and that the angle of “attack” of the “T” foils are non adjustable whilst sailing, are allowed. No attached foil shall exceed the width of the allowable beam of the catamaran, as allowed within this box rule.
8. Built in buoyancy
Closed cell foam is required to be fixed internally in the hulls, sufficient to maintain the vessel, and its crew, in the upright position, with the hulls at, or above the surface of the water, when one or both hulls are completely full of water.
9. Number and weight of crew
Weight and number of crew is unrestricted, (with reference to “Crew and Crew Weight” in the preceding section of the class rules)
10. Spinnaker pole
Any spinnaker pole and/or fittings shall not protrude further forward of the forward most point of the bows (measured at 90 degrees from the centre of a line connecting the two most forward parts of the bows of each hull), by more than one metre.
11. Pre existing 14’ catamarans
Any catamaran designed and “on the water”, before the incorporation of this constitution, that have a hull length no greater than 14'6", and carry a sail area, (inclusive of all the working sails, including half the area of the mast bounded by the luff length of the main sail, and a spinnaker/reacher) no greater than 300 sq ft IN TOTAL, may race with, and compete against, the F14 catamarans designed and built to conform within this "box rule", on an equal, "across the line first wins". Albeit that they, (the pre existing 14' catamarans) may be allocated an appropriate handicap/rating (per class of catamaran), for their finishing times against each other (that is the pre existing 14' designed catamarans) for competition within their own "division", exclusive of the "new" F14 catamarans.
12. From time to time
By an agreed vote by the executive of the F14 catamaran association, those catamarans that do not fit within the preceding “box rule” definitions (from item no 1. through to item 11. inclusive) may be allowed inclusion to sail/compete with and against all those catamarans that comply to the afore mentioned items 1. through to and including item 11, by being afforded an appropriate handicap/rating, designed to keep all racing results fair and equitable between the different “classes” of catamarans so competing.









4.3metre, “A” class,
“box” rules for“ open” development class catamaran.



The craft must be a catamaran, having two identical hulls of equal volume, with the rudders attached at/to the transom/s i.e. not extended out from the stern of the craft so as to effectively “extend” the waterline length of the hull/s.

Maximum hull length
(excluding rudders & rudder fittings)
4.3 metres
Maximum beam (over all)
2.5 metres
Mast height
The mast height is unrestricted, although the mast can only form a percentage of the total sail(s) area of no more than 15% of the mainsail area, i.e. no “solid” wing sail (articulated or not). All the sail(s) shall be of a “soft” fabric type
Maximum sail area
The sail area, including half the area of the mast, bounded by the luff length of the main sail, (without wrinkles or folds in the luff), Shall be no greater than.
145.31 sq ft 13.5 sq metres
The sail shall be of a single “laminate” fabric.
Minimum, weight (of the catamaran)
All hulls, beams, mast, boom, rigging, sheeting, rudders,
centre/dagger boards, in fact the entire catamaran, excluding only the sail(s) and the crew, shall not be less than. 111 lb (imp’) 50 KG
Crew
Unrestricted
Construction material,
Unrestricted
Hydrofoils.
“Hydrofoils” that are used to “lift” the hull(s) due to the forward movement through the water of the catamaran, (i.e. these foils are of an asymmetric profile, designed to generate upwards lift by the action of their movement through the water), are not allowed.
“T” foils
(As opposed to “hydrofoils”) used only for the stablelization of pitch, and only of a symmetrical profile, without having any adjustment to the angle of “attack” of the foils whilst sailing (i.e. not independent of the movement of the hulls), and only if attached to, or forming part of the rudders, or attached to the underside of the hull(s) within 300mm 0f the transom(s), are allowed. No foil(s) shall protrude to any point wider than the maximum allowable beam of the class (i.e. 2.5 metres).
Buoyancy
Closed cell foam is required to be permanently fixed within the hulls, sufficient to maintain the vessel, and its crew, in the upright position, at or above the surface of the water, when one or both hulls are completely full of water.
(Safety rule).



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