DULLIA 30 Sail Configuration Guide

Overview

The DULLIA 30, designed by Santarelli, is a versatile cruiser-racer optimized for agile handling and balanced performance. Built by Dullia, it targets sailors seeking a weatherly 9-meter platform capable of both competitive club racing and spirited weekend cruising.

Rig Specifications & Performance Analysis

• Mainsail Configuration: A P/E ratio of 3.85 indicates a high-aspect rig, prioritizing aerodynamic efficiency and lift for superior upwind pointing.
• Foretriangle Design: The I/J ratio of 3.09 is optimized for overlapping genoas, allowing the boat to generate significant power in light to moderate air.
• Sail Area: 33m² total upwind area provides a healthy power-to-displacement ratio for a boat of this size.
• Performance: The Santarelli design results in a stiff, responsive hull that performs exceptionally well in coastal chop.

Popular Sail Configurations

• Mainsail: Typically configured with two or three reef points to manage the high-aspect ratio in building breeze.
• Headsail: Most owners utilize a 135% to 150% genoa for light air, transitioning to a high-clew working jib for heavy-weather stability.

Key Characteristics

• High-aspect 3.85 P/E ratio provides excellent lift and reduces drag on the mainsail.
• I/J ratio of 3.09 supports versatile headsail inventories from genoas to blade jibs.
• 3.11m beam and 1.68m draft offer a stable, weatherly platform for offshore legs.
• Agile 9.06m hull ensures responsive handling and quick acceleration out of tacks.

Sailing Considerations

Recommended for wind ranges between 5 and 25 knots with appropriate sail changes. The boat's headsail-driven configuration requires active sheet trimming to maintain balance. Typical crew requirements range from 3 for cruising to 5 for competitive racing.

Sailmaking Recommendations

For the DULLIA 30, we recommend SurgeX membrane sails as the optimal choice for most sailors. SurgeX uses continuous fiber construction where fibers are laid along load paths and embedded in a thin membrane, providing superior shape retention compared to traditional Dacron while being more affordable than premium laminates. The continuous fiber structure means less stretch over time, maintaining the designed sail shape for years.

For racing applications, specify a lightweight SurgeX configuration with minimal base weight to maximize performance. For cruising or bluewater sailing, add a taffeta protective layer on both sides to enhance UV resistance and abrasion protection. Based on the 3.85 P/E ratio, a tri-radial panel layout or custom fiber mapping works best to support the high vertical loads. A typical inventory includes a full-batten SurgeX main and a 140% genoa. With 33m² of sail area, plan to reef the main around 16-18 knots to maintain a flat helm.

Conclusion

The DULLIA 30 is a refined Santarelli design that rewards precise sail trim and high-quality materials. Explore sail options for DULLIA 30 to maximize your performance on the water.