RL24, RL28, and RL34 Trailable Yachts
from Rob Legg Yachts
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|Proposed new Status 580 Class Rules 1/1/2007|
|Proposed Status 580 Specifications from 1/1/2007|
Measurement Rules Check List
LOA 5.80 m Mainsail 11 m2
LWL 5.00 m Jib 5.6 m2.
Beam 2.20 m. Spinnaker 19.5 m2
Draft 0.2/1.2 m Displacement 400 kg. (This is really weight of hull and keel, not displacement).
Swing Keel weight 120 kg, AS SUPPLIED BY BUILDER.
RUDDER DESIGN OPTIONAL.
Mast: Aluminium, 95.3 mm x 63.5 mm OVAL in shape.
Black Bands: not less than 10mm thick
Band 1: lower edge, not more than 7450 mm above deck step.
Band 2: upper edge, not more than 6800 below the lower edge of Band 1.
Spreaders: Maximum width, 560 mm. Maximum height above deck step 3300 mm.
Hounds: maximum height above deck step, 5800 mm.
SPINNAKER HALYARD: MAXIMUM FROM TOP OF BLOCK TO MAST STEP, 6250 MM.
Boom: Aluminium, 70 mm x 57.2 mm. Maximum length of boom 2900 mm.
Black band: inner edge not more than 2600 mm from the aft edge of mast.
Spinnaker Pole: Aluminium of 38 mm diameter. Maximum overall length, including fittings, 2300 mm.
NO OTHER SPARS ARE PERMITTED.
SPARS MAY BE OF ANY MATERIAL OR CROSS SECTIONAL DIMENSION.
Mainsail: maximum length of leech, 7300 mm. Maximum length of foot, 2600 mm .
Maximum dimensions from the half and three quarters high on leech to the closest point on luff, 1700 mm and 1020 mm. MAINSAIL MAY BE MADE OF ANY SAIL CLOTH.
Maximum width of headboard 140 mm. Not more than four (4) battens are permitted.
The batten pockets shall divide the leech into equal parts + or Ė 100 mm measured to the lower edge of each pocket; full length battens are permitted
Jib: half the luff length of the jib multiplied by a measurement from the intersection of the clew to the shortest distance to the luff shall not exceed 5.5 m2. JIB MAY BE MADE OF ANY SAIL CLOTH.
The leech shall not be convex. Maximum foot round, 100 mm.
Three leech battens of total maximum length, 870 mm. Maximum single batten length, 300 mm. ROLLER REEFING IS PERMITTED ON THE JIB.
Spinnaker: Maximum length of luff, 6750 mm. Maximum half foot measurement, 1900 mm. Maximum half width measurement, 1970 mm.
FROM A BOAT MANAGEMENT POINT OF VIEW, IT IS HIGHLY RECOMMENDED THAT A SPINNAKER BE UNDER 19.5 m2 .
AN ASYMMETRICAL SPINNAKER THAT COMPLIES WITH THE MAXIMUM SPINNAKER DIMENSIONS (6750 m X 1.9/1.97 m) IS PERMITTED; AS LONG AS THE TACK STROP IS WITHIN THE DIMENSIONS OF THE HULL.
IF AN EXISTING SPINNAKER HAS A LUFF LESS THAN 6370 MM, THERE MAY BE A MAXIMUM OF 4225 MM ON THE FOOT MEASUREMENT AND A MAXIMUM 4180 MM HALF HEIGHT.
A SPINNAKER MUST BE MADE OF WOVEN NYLON.
This is an attempt to sort out an agreed set of rules for the Status 580 to ensure:
a. there is process to come to consensus on the rules.
b. the NSW rules become incorporated into the Status 19 Class Rules.
c. owners have certainty as they buy or replace sails/equipment.
d. boats become standardized for the purpose of applying handicaps in mixed fleet competition.
e. that the class be able to take advantage of modern materials and sail cuts.
Status 19 Class Rules
The existing Status 19 Class Rules have been used as the template for the proposed 1/1/2007 rules. PROPOSED CHANGES ARE IN CAPITALS.
NSW Status 580 Class Rules
The existing NSW Status 580 Class Rules donít specify the material and the cross sectional dimensions of the spars. It is reasonable for an owner to have replaced spars with composite spars of non-original cross sectional dimensions, so provision is made for this in the proposed rules.
The Status 19 Class Rules donít specify a spinnaker halyard height, so the maximum dimension from the NSW Status 580 Class Rules has been incorporated in the proposed rules as it reasonable for an owner to have a halyard block higher than on the original equipment.
The NSW Status 580 Class Rules specify a spinnaker of unusual shape; itís really too wide for this boatís sheeting length and itís most unusual to have a foot wider than half height. It is suggested that new spinnakers not be made to these dimensions.
The Spinnaker Problem
Original spinnakers sold with RL built boats had dimensions of 5.95 m luff X 3.55 m foot which gave an approximate area of 19.1 m2; (and this area can be a handful in moderate and fresh conditions).
A 6.0 m luff X 3.6 m foot gives an approximate area of 19.5 m2 , and this is the area specified by the designer and stated in the Status 19 Class Rules.
A 6.75 luff X 3.8 foot gives an approximate area of over 23 m2 , and this is the area allowed by the Status 19 Class Rules ( but, well over the designerís 19.5 m2 ).
The NSW Status 580 Class Rules allow for maximum dimensions which give an area of about 22.5 m2 as stated in their rules.
As owners will currently have spinnakers of dimensions according to one of the rules, it seems harsh to change the dimensions, but a note of warning is incorporated in the proposed rules.
An asymmetrical spinnaker of 6.75 m luff X 3.8 m foot gives an approximate area of 18.1 m2. The asymmetrical spinnaker, (or cruising chute, or gennaker) doesnít use a spinnaker pole, but sets from a strop on the bow. This seems ideal for a boat that spends time cruising as well as being easier to set and gybe, control and take down on the race course.
Please use the RL forum to give feedback on this proposed set of rules for the Status 580.
Direct feedback also to firstname.lastname@example.org please.
Hopefully, if there is consensus, these rules will form the basis for an application to the Victorian Yachting Council for a CBH and thus a derived VYC Yardstick that are a true reflection of the Status 580 and not the Slipstream (CBH of 0.71) as is the case now.
|Re: Proposed new Status 580 Class Rules 1/1/2007|
|Good work Phonse! I have printed out a few copies of your document and I will pass them on to the Status 19/580 owners her in Paynesville. Hopefully they will take part in your project!|
I see a few performance variation problems in the first version of your proposed rules and they are as follows:
ē Some of the Statusís down here have efficient tapered tops on their masts along with backstays to encourage mast bend, others do not.
ē Some Statusís have keel box rubbers or flaps while others do not.
ē Some Statusís already have laminate sails while others do not.
I think you may have trouble getting an YV CBH rating for the Status as it does not comply with the definition of a type one or two trailer yacht. This is not really a major problem as I feel the TY CBH system is at the point of collapse anyway (The TY CBH system has folded in NSW). I suggest you get a set of class rules up and running and approved and then go for a off the beach YV yardstick number.
I would love to see proper one design Status 19/580 class racing her in Paynesville.
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