Measurer's Memo: Tolerances of Centerboards & Rudders

A detailed technical memo by the Chief Measurer examining centerboard and rudder tolerance specifications for the Thistle class. Minton presents measurement data and specifications for centerboard A dimensions and rudder Z dimensions, discussing how tolerances affect class uniformity and competitive fairness.

This is a summary. The full article text is © the Thistle Class Association — read the original scan via the link above.

• measurements
• centerboards
• rudders
• tolerances
• specifications
• one-design
• class rules