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Mainsail
The mainsail will usually be built out of 5.2 oz. Dacron specially woven for mainsails. All mains will come standard with one row of reefs, shelf foot and cunningham hole. An additional row is recommended for areas with winds exceeding 30 knots.
150% Genoa - 199 sq. ft.
The 150% genoa is designed to be the largest headsail carried on the San Juan 23. It is usually built out of 3.8 dacron and is principally used in winds up to 12 knots.
115% Genoa -120 sq. ft.
This sail is cut low on the hoist and designed for winds from 10 to 20 knots. It will usually be built of 5.5 oz. dacron.
Working Jib - 80 sq. ft.
The working jib is a sail that every new owner should buy first. It will allow the boat to be driven easily in strong airs with excellent balance and control. We recommend for the budget-minded buyer, that he purchase the working jib and 150% genoa before the 115% genoa.
Radial Head Spinnaker
This is an all purpose spinnaker with a radial head and horizontal lower panels. It is made out of .75 oz. nylon. The spinnaker is cut with an elliptical shape to give it maximum projected area on a run and good reaching capabilities.
Following is a chart for use in sail selection. Try it and let us know your successes and/or failures and we’ll try to keep it updated.
| Drifting Conditions | 150% genoa, main try to foot | Same as beat | Try the spinnaker |
| Light Air 4-8 | 150% genoa, main | 150% genoa, main, maybe spinnaker | Main, spinnaker |
| Light-Medium 10-15 | 115% genoa, main | 150% genoa, main, chute | Same as above |
| Medium 15-20 | 115% genoa, reefed main | Main, 115% | Main, Chute, or wind out genoa |
| Heavy 20-up | Working jib, Main reefed | Same as beat | Reefed main & wing out working jib |
