Thistlebase
Measurer's Memo: Tolerances of Centerboards & Rudders
Technical article examining centerboard and rudder tolerances based on specifications established at the 1965 Governing Board meeting in St. Petersburg. Provides detailed measurement data showing that tighter tolerances could be applied to centerboards and rudders without negatively affecting workmanship or boat performance.
View original on Google Drive · page 3
The scanned issue opens in Google Drive; turn to page 3.
This is a summary. The full article text is © the Thistle Class Association — read the original scan via the link above.