Monohull — Wind Direction & Sail Trim
Monohulls heel under wind pressure, so sail trim is slightly tighter. Pay attention to heel angle and balance.
Wind 90° off bow · Sail 48° off centerline
Sail Angle
Eased ~45°–50°
Close Hauled
Wind: 35°–45°Monohulls heel more; sail slightly tighter than catamarans. Keep the jib slot narrow.
Sail Angle
Pulled in tight
Close Reach
Wind: 45°–60°Ease sails moderately. Watch heel angle — flatten main if overpowered.
Sail Angle
Trimmed 30°–40°
Beam Reach
Wind: 90°Wind from the side. Ideal reaching speed. Let sails half out.
Sail Angle
Eased ~45°–50°
Broad Reach
Wind: 135°–150°Wind behind at angle. Use a whisker pole if available for the jib.
Sail Angle
Eased 65°–80°
Dead Run
Wind: 180°Dead downwind. Wing-on-wing or use a spinnaker. Beware accidental jibes.
Sail Angle
Fully out ~90°
When to Reef
If you think you must reef, then it may be too late already.
Reef early — before conditions force your hand. A well-timed reef keeps the boat balanced, fast, and safe.
| Reef Stage | Apparent Wind | Sail Reduction |
|---|---|---|
| Full Sail | 0–14 kn | 0% |
| 1st Reef | 15–18 kn | ~25% |
| 2nd Reef | 20–23 kn | ~40% |
| 3rd Reef | 25+ kn | ~55% |
These are general guidelines based on apparent wind speed. Actual reefing thresholds vary with sail area, displacement, sea state, point of sail, and crew experience. Always consult your vessel's own reefing chart or manufacturer specifications.