Thistlebase
Measurer's Memo
Technical discussion of thwart modifications, weight measurements, trap door installation specifications, and cunningham ring installations approved for fiberglass Thistle hulls.
View original on Google Drive · page 16
The scanned issue opens in Google Drive; turn to page 16.
This is a summary. The full article text is © the Thistle Class Association — read the original scan via the link above.