MEIRA V-900 Sail Configuration Guide

Overview

The MEIRA V-900, designed by J. Visiers and built by MONOTIPO, is a performance-oriented cruiser-racer that balances agility with coastal capability. With only three hulls in existence, this 9-meter design targets sailors seeking a niche, weatherly platform for both club racing and spirited daysailing.

Rig Specifications & Performance Analysis

Analysis of the MEIRA V-900's dimensions reveals a well-proportioned sail plan:

• Mainsail Configuration: A P/E ratio of 3.00 indicates a moderate aspect rig, offering a balanced center of effort that avoids being overly tip-heavy while maintaining efficient lift.
• Foretriangle Design: The I/J ratio of 3.19 is optimized for versatile headsail configurations, easily accommodating high-overlap genoas for light-air power.
• Sail Area: 39m² of total upwind area provides a healthy power-to-displacement ratio for a 9.00m hull.
• Performance: The combination of a 1.74m draft and 3.25m beam suggests a stiff, stable ride that remains close-winded in choppy conditions.

Popular Sail Configurations

Due to the versatile I/J ratio, the fleet typically utilizes a range of headsails to match local conditions.

• Mainsail: Standard configurations often feature two reef points to manage the 10.96m luff in offshore gusts.
• Headsail: Owners frequently swap between a 135% genoa for light-air reaches and a 100% working jib for heavy-air windward work.

Key Characteristics

• Moderate P/E Ratio: Delivers a versatile mainsail shape that is easy to depower via backstay tension.
• High Foretriangle (I/J): Provides significant power from the headsail, crucial for punching through chop.
• Wide Beam (3.25m): Enhances form stability, allowing the boat to carry full sail deeper into the wind range.
• Deep Keel (1.74m): Ensures excellent lift and minimal leeway during upwind beats.

Sailing Considerations

• The boat performs optimally in 8–16 knots of true wind, where the 39m² upwind area can be fully utilized.
• A crew of 3–5 is ideal for competitive racing, though the rig remains manageable for shorthanded cruising.
• Expect a responsive helm and high sensitivity to headsail lead adjustments.

Sailmaking Recommendations

For the MEIRA V-900, we recommend SurgeX membrane sails as the optimal choice for most sailors. SurgeX uses continuous fiber construction where fibers are laid along specific 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 significantly less stretch over time, maintaining the designed aerodynamic profile for years.

For racing applications, specify a lightweight SurgeX configuration with a technora or carbon fiber blend and minimal base weight to maximize light-air acceleration. For cruising or coastal trekking, add a micro-taffeta protective layer on both sides to enhance UV resistance and prevent mechanical abrasion. Based on the 3.00 P/E ratio, a tri-radial fiber layout or a custom load-path membrane works best to handle the vertical loads of the tall 10.96m luff. A typical high-performance inventory includes a slab-reefing main, a 140% light-medium genoa, and a code zero. With 39m² of sail area and a 3.25m beam, plan to take your first reef around 17–19 knots of true wind to maintain a flat, fast profile.

Conclusion

The MEIRA V-900 is a rare, high-potential platform that rewards precise sail trim and modern materials. Explore sail options for MEIRA V-900 to unlock its full Visiers-designed performance.