Thistlebase
Cunningham Holes
Technical discussion and diagrams showing released and tightened positions of Cunningham holes in Thistle sails, addressing the controversy over whether allowing adjustable Cunningham holes weakens the class's design integrity by making sails too variable.
View original on Google Drive · page 13
The scanned issue opens in Google Drive; turn to page 13.
This is a summary. The full article text is © the Thistle Class Association — read the original scan via the link above.