Thistlebase
Thistle Boom Vang with Multiple Purchase—Rig and Materials
A technical drawing and description of boom vang rigging using a multiple purchase system for improved control and efficiency. Includes detailed materials list and specifications for constructing the rig.
View original on Google Drive · page 14
The scanned issue opens in Google Drive; turn to page 14.
This is a summary. The full article text is © the Thistle Class Association — read the original scan via the link above.