Thistlebase
Compasses
Discussion from the Thistle ListServ about compass systems for detecting lifts and headers. Topics covered include tactical vs. traditional compasses, digital compass options, and concerns about technical aids in racing.
View original on Google Drive · page 10
The scanned issue opens in Google Drive; turn to page 10.
This is a summary. The full article text is © the Thistle Class Association — read the original scan via the link above.