FARR 36 Sail Configuration Guide

Overview

The FARR 36 is a high-performance racing yacht designed by Bruce Farr and built by Betts, engineered for competitive regatta success. Its design philosophy prioritizes speed, responsive handling, and high-aspect efficiency for professional and semi-professional racing teams.

Rig Specifications & Performance Analysis

• Mainsail Configuration: A P/E ratio of 2.68 indicates a high-aspect rig designed for maximum lift and upwind efficiency.
• Foretriangle Design: The I/J ratio of 3.54 is optimized for tall, high-aspect working jibs that excel in close-hauled performance.
• Sail Area: 72m² total upwind area provides a high power-to-weight ratio.
• Performance: This rig is strictly performance-oriented, favoring speed and pointing ability over cruising comfort.

Popular Sail Configurations

Typical setups utilize high-roach mainsails to capitalize on the 15.22m luff length. Headsail inventories generally feature a range of non-overlapping jibs to maintain efficiency across the wind spectrum, as supported by the tall foretriangle dimensions.

Key Characteristics

• High-aspect mainsail (P/E 2.68) optimizes lift-to-drag ratios for superior pointing.
• Tall foretriangle (I/J 3.54) enables powerful, high-aspect jib configurations.
• Deep 2.61m draft provides the necessary stiffness to support the 72m² sail plan.
• Technical hull and rig dimensions suggest a highly weatherly and responsive racing platform.

Sailing Considerations

The FARR 36 is a thoroughbred that demands precise trim and an active crew to manage its powerful sail plan. The boat is exceptionally close-winded but requires early depowering as the breeze builds due to its high-aspect ratios. Performance expectations include fast acceleration and high sensitivity to backstay and outhaul adjustments.

Sailmaking Recommendations

For the FARR 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 teams involved in offshore racing, add a taffeta protective layer on both sides to enhance UV resistance and abrasion protection against the rig. Based on the 2.68 P/E ratio, a load-path-mapped radial fiber layout works best to handle the high vertical tensions. A typical inventory includes a square-top mainsail, a light/medium J1, and a heavy-weather J3. With 72m² of sail area, plan to reef around 18-22 knots depending on crew weight and sea state.

Conclusion

The FARR 36 is a sophisticated design that excels with high-modulus sail materials that can maintain critical shapes under load. Explore SurgeX membrane sail options to unlock the full competitive potential of the FARR 36.