Thistlebase
Schock Aluminum Mast Denied Class Sanction
The Schock-manufactured aluminum Thistle mast was refused legal sanction by TCA Measurer George Devlin. A proposal to sanction aluminum spars for the class was rejected pending agreement with the TCA's official specifications.
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This is a summary. The full article text is © the Thistle Class Association — read the original scan via the link above.