Thistlebase
Centerboards: First 5 Boats—1963 Nationals Dimensions in Inches
Technical specifications table for centerboards from the first five boats in the 1963 National Championship, showing detailed measurements and tolerances for various boat components.
View original on Google Drive · page 5
The scanned issue opens in Google Drive; turn to page 5.
This is a summary. The full article text is © the Thistle Class Association — read the original scan via the link above.