Request for Rule Interpretation No. 1 Decision by : Brett McCormack (Chairman, NZL), Bill Hagerup (USA), Angus Richardson (GBR)
Date: 13 Jan 2007
My primary question surrounds the Length (Depth) that the Rudder my extend on the Vertical Axes for the Footy. "By reading the Rules there doesn't seem to be an exact determination of what the Overall Restrictive Length of the Rudder might be. There is however the assumed 200mm slot but no formal rule to provide for this eventuating."
FOOTY CLASS RULES for radio sailing These are open class rules in which anything not specifically restricted or prohibited is permitted. B. PRIMARY MEASUREMENT RULE
B.1 With the exceptions listed below in B.2, B.3 and B.4, the
boat in racing trim shall be capable of fitting into an open-topped rectangular measurement box of internal dimensions 305mm long, 305mm deep, 153mm wide, with 6.3mm wide slots for projecting spars and rudder, as shown in the diagram. B.2 The following may project above the top of the measurement box:
sail(s), mast, spars, rigging, aerial, associated fittings. B.3 A
bowsprit may project forward of the measurement box. B.4 The following may project aft of the measurement box: bumpkin, rudder.
E. HULL APPENDAGES
E.1 The overhang of the rudder is restricted to 51mm aft of the measurement box.
E.2 Except for the rudder, the following are prohibited: retractable and or movable hull appendages .
E.3Rudder thickness shall not exceed 6.3mm. E.4 Materials shall not be of density higher than lead; 11300kg/m3.
Also in addition to this there is somewhat of a confusion on my part re the Construction of the Box. I've seen many tact's with some made from simple Ply to others made from 20mm MDF Board. Each have varying restrictive degrees on how a boat can be placed. The more robust teh construction of the Box in effect brings into play the 200mm guide slot to allow rudders which attach or are positioned under teh hull. In progressing a Rule Interpretation I have provided for an attachment which hopefully explains what I am contemplating, albeit with a straight rudder and not one as described in my suggested alternative. In summary
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