7.5 Overall width of the platform
The overall width of a platform corresponds with the horizontal distance between the verticals passing
through the extremities of the sides of the platform, with the boat being levelled on its waterline and
excluding protruding dagger boards, rudder blades or tiller bars. When wings are being used than the equivalent overall beam is determined by measuring the overall width including only one fully extended
wing.

7.13 Daggerboard and Centreboards
All lift producing elements that have as their dominant purpose to resist sideways movement of the craft
while sailing and of which no part is canted at a greater angle than 6 degrees off the vertical when the boat is level on the waterline.