FIRST 50 Sail Configuration Guide

Overview

Designed by Philippe Briand for Beneteau, the FIRST 50 is a sophisticated performance cruiser that balances elegant aesthetics with a competitive hull form. It is primarily targeted at the performance-oriented cruising market and club racing fleets requiring a fast, weatherly yacht.

Rig Specifications & Performance Analysis

• Mainsail Configuration: A P/E ratio of 2.85 indicates a tall-aspect rig designed for efficiency and lift in a wide range of conditions.
• Foretriangle Design: The high I/J ratio of 3.54 supports modern, high-aspect headsails and powerful overlapping genoas.
• Sail Area: With 111m² of total upwind area, the boat offers a high power-to-weight ratio.
• Performance: The rig is optimized for windward efficiency, making the FIRST 50 exceptionally close-winded compared to standard cruisers.

Popular Sail Configurations

• Mainsail: Most owners opt for full-batten configurations to maximize the 60m² area and maintain leech profile.
• Headsail: Configurations vary from 105% non-overlapping jibs for ease of handling to 135% genoas for light-air performance.

Key Characteristics

• Tall P/E ratio of 2.85 supports a high-aspect, aerodynamically efficient mainsail plan.
• High I/J ratio of 3.54 optimizes headsail power and improves upwind pointing angles.
• The 4.37m beam provides the necessary stability to carry the 111m² upwind sail plan effectively.
• Briand-designed hull ensures a stiff, responsive feel even when pressed in heavy air.

Sailing Considerations

• Effective traveler management is required to de-power the tall mainsail as the breeze builds.
• Generally manageable by a small crew for cruising, though 6-8 crew are recommended for competitive racing.
• Expect high performance in light-to-medium airs with early transition to reefed configurations.

Sailmaking Recommendations

For the FIRST 50, 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 acceleration. For cruising or bluewater sailing, add a taffeta protective layer on both sides to enhance UV resistance and abrasion protection. Based on the 2.85 P/E ratio, a tri-radial fiber layout works best to handle the high vertical loads. A typical inventory includes a full-batten mainsail, a 105% furling jib, and a Code 0 for light air reaching. With 111m² of sail area, plan to reef the mainsail around 18-20 knots to maintain an upright, efficient heel angle.

Conclusion

The FIRST 50 is a powerful, high-aspect yacht that rewards precise sail trim and high-quality membrane construction. Explore sail options for FIRST 50 to maximize your performance on the water.