FIRST 36 Sail Configuration Guide

Overview

The FIRST 36, designed by Sam Manuard for Beneteau, is a high-performance cruiser-racer bridging the gap between technical racing and comfortable cruising. It is engineered for sailors who prioritize planning speeds and precise handling in a versatile 11-meter platform.

Rig Specifications & Performance Analysis

• Mainsail Configuration: A P/E ratio of 3.01 indicates a high-aspect rig, optimized for aerodynamic lift and efficiency in various wind conditions.
• Foretriangle Design: The I/J ratio of 2.91 is perfectly suited for high-efficiency, non-overlapping working jibs.
• Sail Area: 68m² total upwind area provides a powerful sail-area-to-displacement ratio.
• Performance: The configuration is heavily performance-oriented, favoring a stiff, weatherly boat that excels in both light air and heavy-weather planning.

Popular Sail Configurations

• Mainsail: Modern inventories typically feature high-roach or square-top configurations to maximize the tall P/E ratio.
• Headsail: Most owners utilize 100-105% jibs for ease of handling and optimal upwind pointing angles.

Key Characteristics

• High-Aspect Rig: The 3.01 P/E ratio delivers superior lift and reduced drag for better upwind VMG.
• Modern Foretriangle: The 2.91 I/J ratio allows for easy tacking and high-efficiency jib shapes.
• Powerful Beam: The 3.79m beam provides significant form stability to carry the 68m² upwind plan.
• Planning Potential: Manuard’s hull design allows the boat to break the displacement barrier early in the breeze.

Sailing Considerations

• Recommended for active sailors; the rig responds quickly to backstay and outhaul adjustments.
• Short-handed sailing is highly viable due to the manageable non-overlapping jib sizes.
• Performance expectations include early planning and high stability in offshore conditions.

Sailmaking Recommendations

For the FIRST 36, 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 and reduce healing moment. For cruising or bluewater sailing, add a taffeta protective layer on both sides to enhance UV resistance and abrasion protection. Based on the 3.01 P/E ratio, a load-path fiber layout works best to support the high tension in the mainsail leech. A typical inventory includes a full-batten SurgeX mainsail, a J2 medium jib, and an A2 asymmetric spinnaker. With 68m² of upwind sail area, plan to reef around 18-20 knots to maintain optimal heel angles.

Conclusion

The FIRST 36 is a sophisticated modern racer-cruiser that demands high-performance materials to reach its design potential. Explore sail options for the FIRST 36 to elevate your sailing experience.