The Class recently faced two contentious points the Technical Committee deemed as not complying with Class Rules, hence rejecting concerned equipments and jibs at 2025 Worlds held in Noordwijk.
Following, World Sailing has been asked to provide interpretations on both topics in order to verify whether the Class position was justified or not.
Questions were:
Question 1
a) Would a Rudder with two fixed horizontally extending profiles on the lower section of the blade
comply with the F18 Class Rules?
b) How can a rudder clearly be distinguished from a hydrofoil based on technical characteristics?
c) How should “primary function” be interpreted when a component may offer a secondary
performance benefit?
Question 2
If the flexibility of the battens allows, is it an acceptable method to flake the jib when taking
measurements to calculate jib area in-line with the Formula 18 class rules?
Interpretation
Interpretation has been published 12th August 2025 on dedicated World Sailing webpage.
We are happy to let you know that World Sailing Technical Department gave right to the Class on both points.
You may download interpretation here.