Measurers Corner

Measurer’s Interpretations and Recommendations

§I-VI-A5: The National Measurer shall interpret and recommend changes in the specifications. He shall have such assistance from the Technical Committee as is necessary and appropriate. Such interpretations and recommendations shall be subject to approval by the Governing Board. They shall be published as Measurer’s "Interpretations" or "Rulings" or as new or amended Specifications as soon as adopted in the manner provided by the Constitution and By-Laws.

Note that this page is no longer in use and what is shown is for archival use only.

Topic SectionQuestionShort
Status *Action
HullWhat is allowed to re-build the deadwood? In ProcessDetails
HullCan a paint designed to prevent growth be used even though it is not called "anti-fouling".No In ProcessDetails
DeckWhat is allowed to re-build the deck? In ProcessDetails
MainsailCan the mainsail be used loose footed? Can the battens be extended?No In ProcessDetails
JibCan the jib be used with roller reefing?No In ProcessDetails
Basic RulesCan hiking be assisted using existing lines? What are the limits on athletic hiking? In ProcessDetails
Affirmed Interpretations and Recommendations
HullCan the tiller be constructed from other then wood?No Affirmed-XDetails
DeckMay drain holes be cut in the toe rail?Yes AffirmedDetails
DeckMay the backstay sheave be a Harken 310?Yes AffirmedDetails
CockpitDoes the coaming need to project 2" above the deck?Yes AffirmedDetails
CockpitMay the floorboards be re-constructed from plywood?Yes AffirmedDetails
MastThe mast is currently being produced at 39' 4-5/8" but the specifications are 39' 6"? AffirmedDetails
MastWould it be legal to use Tball shroud terminals in lieu of marine eyes on the mast?No AffirmedDetails
BoomIs the current boom with diagonal cut legal at 13' 11" length?Yes AffirmedDetails
BoomIs the dimension for placement of the boom bail correct?No Affirmed-XDetails
BoomMay the boom turning bail be soft (Spectra) or not used rather than Stainless?No Affirmed-XDetails
Backstay/Boomvang/Outhaul AdjustmentsIs wire the only permitted material for the connection of the backstay through the backstay gland?No AffirmedDetails
Backstay/Boomvang/Outhaul AdjustmentsMay the boomvang be attached to the mast using a strap?Yes Affirmed-XDetails
Control LinesIs a fraculator (a system to steady the mast forward downwind) permitted?Yes AffirmedDetails
Control LinesMay sheets have a section of their cover stripped off?Yes Affirmed-XDetails
Control LinesIs the allowed purchase of the mainsheet 8:1 and can this be accomplished with a fine and coarse set of blocks?Yes AffirmedDetails
Control LinesMay the spinnaker foreguy fairlead be moved? (The goal being to keep the foreguy from pulling the pole forward.)No Affirmed-XDetails
Control LinesAre both sets of jib tracks required?Yes Affirmed-XDetails
Control LinesMay the spinnaker halyard exit the mast above the deck?Yes AffirmedDetails
Optional EquipmentIs there a change required of the class rules for RRS 2009-2012?Yes AffirmedDetails
Optional EquipmentMay an electronic compass (i.e., TackTick) be used?Yes AffirmedDetails
JibThe Class Rules indicate the jib battens are 2 inches wide - is this correct?No AffirmedDetails
Sail MeasurementDo both spinnaker measurements apply: 10.0' max at any location (at 90 deg.) and 10' 6" max 15' radialYes Affirmed-XDetails
Jib MeasurementIs there a better means to measure the jib head apex?Yes AffirmedDetails
Basic RulesIs there a limit on crew number or weight?Yes AffirmedDetails
Spinnaker PoleCan the spinnaker pole be carbon fiber?No AffirmedDetails
Spinnaker PoleWould it be legal to store the spinnaker pole on the boom while racing?No AffirmedDetails
Tabled Issues
HullMay deck splash boards be used?No TabledDetails
HullCan the floatation system be improved?Yes TabledDetails
Control LinesCan the spinnaker pole taper be less then 2 inches?No TabledDetails
JibCan the length of the jib battens be extended?No TabledDetails
SpinnakerCan a smaller spinnaker be used?No TabledDetails
Basic RulesCan non-inventory sails be used in a race for sail testing?Yes TabledDetails
* Status Values:
  • In Process = Topic is being investigated.
  • Pending = Answer has been posted for discussion. Answer may or may not be affirmed - use with caution.
  • Affirmed = Answer has been approved by Governing Board.
  • Affirmed-X = Answer has been affirmed by Technical Committee and no action requested of Governing Board.
  • Rejected = Answer has been disapproved by Governing Board.
  • Tabled = Status-quo, discussion has occurred but no changes adopted.

To submit new questions for interpretation and recommendation please email the Shields National Measurer. To add a comment to a specific topic, go to the Details page for that topic and enter your comment.