Upgraded 10R Class Rules “How will I need to change my boat?”

Upgraded 10R Class Rules “How will I need to change my boat?”

Which rules apply?

  • Hull and sails may comply with the class rules in force at the time they were certified, or with the current class rules
  • Hull appendages and rig shall comply with the current class rules.

Changes required to an existing boat?

  • None

Changes to the way a new boat is measured?

  • The area of the sail (or parent sail) shall be marked on the sail tack
  • Any hollows in the luff or leech of a sail shall be bridged for measurement
  • The weight of the boat is recorded at initial certification measurement
  • Measurement of all sails no longer relates to the profile of the measured sails but to the dimensions of the measured sails
  • The sail measurement grid has 200 mm gridlines instead of 100 mm
  • Tell tales are ignored for measurement

Changes to the way a new boat may be made?

  • The length of limit marks shall be large enough to be visible when afloat
  • Bow bumpers are required to be thicker at the lower end
  • Certificated mainsails (the largest of the sails) shall have a luff length over 1990 mm and under 2200 mm

New freedoms?

  • The boat may be lightened by any amount providing the waterline endings remain inside the waterline limit marks.

New prohibitions?

  • Variable geometry of the hull
  • Mainsails (the largest of the sails) with luff length below 990 mm
  • Reefing of sails
  • A rig without a mainsail
  • Automated control of rig/sails
  • Automated steering
  • On board cameras
  • Use of pictures while racing

Terms used here

  • Current class rules – the rules being proposed
  • Previous class rules – the rules prior to the ones being proposed
IRSA