1. Sail & Rig Tuning

2. Apologies Adam Bowers does this much better than me.

3. Fundamental Rules. Rule No.1. –To produce drive, wind must come into the rig, flow over the rig, and exit the rig. –No flow, no go! Rule No.2. –Power is generated by the rig turning the wind from its original course. Rule No.3. –Power is released by not turning the wind away from its original course by the rig.

4. 20 Units Below 20 units we want as much power as possible Above twenty units we need to depower the rig so we only use 20.

5. How many units?

10. The Fourth Corner How many corners has a sail?

11. How many corners?

12. Mr Tell Tail

13. Other Elements The slot – parallel Mast curve and luff curve Class Information

15. Practical Now lets go and see how we can control these on the boat.

17. Further Reading Tuning your dinghy, Lawrie Smith. The RYA book of race training, Jim Saltonstall. Class or Sailmakers tuning guide.