Seeking Speed

Comprehensive guide to tuning Thistle boats and optimizing sail shape through experimentation and comparison. Geiger discusses mast bend, rig tension, sail photography techniques, and specific tuning methods used by North designers to improve boat performance and consistency.

This is a summary. The full article text is © the Thistle Class Association — read the original scan via the link above.

• boat tuning
• sail shape
• mast bend
• rig tension
• performance