Thistlebase
The Game of Headers and Holes
Technical sailing article explaining weather systems and how to identify and navigate high and low pressure areas (headers and holes) on the race course using compass and observational sailing techniques.
View original on Google Drive · page 11
The scanned issue opens in Google Drive; turn to page 11.
This is a summary. The full article text is © the Thistle Class Association — read the original scan via the link above.