FINNFLYER 36 Sail Configuration Guide

Overview

The FINNFLYER 36 is a performance-oriented cruiser-racer designed by Kamu Stråhlmann and built by Finn Yachts. It is engineered for sailors who prioritize speed, precision, and high-quality Scandinavian craftsmanship in both competitive racing and fast coastal cruising.

Rig Specifications & Performance Analysis

Analysis of the P/E/I/J dimensions reveals a modern, efficient sail plan:

• Mainsail Configuration: A P/E ratio of 2.91 indicates a high-aspect ratio rig, which provides superior aerodynamic lift and efficiency when sailing upwind.
• Foretriangle Design: The I/J ratio of 3.64 is optimized for tall, high-aspect headsails, allowing for efficient power generation without the need for large, cumbersome overlapping genoas.
• Sail Area: 69m² total upwind area provides a high power-to-weight ratio.
• Performance: The combination of a tall rig and a deep 2.21m draft makes the boat exceptionally weatherly and stiff in a breeze.

Popular Sail Configurations

Due to the versatile nature of the Finnflyer fleet, sail setups are typically customized for specific use cases:

• Mainsail: High-modulus configurations with 2-4 battens are standard to support the tall P dimension.
• Headsail: Most owners opt for 100-105% non-overlapping jibs to take advantage of the high-aspect foretriangle.

Key Characteristics

• High-aspect 2.91 P/E ratio maximizes upwind efficiency and lift.
• Tall 3.64 I/J ratio supports modern, easy-to-tack high-aspect jibs.
• Deep 2.21m draft ensures excellent stability and tracking at high heel angles.
• 10.99m LOA and balanced beam offer a responsive, sporty sailing experience.

Sailing Considerations

• The boat excels in close-hauled performance; maintaining sail flatness is key as wind speed increases.
• While capable of being shorthanded, the rig rewards active trimming and precise backstay tension.
• Performance expectations include early planing potential off the wind and high pointing ability upwind.

Sailmaking Recommendations

For the FINNFLYER 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 acceleration in light air. For cruising or bluewater sailing, add a taffeta protective layer on both sides to enhance UV resistance and abrasion protection during tacks. Based on the 2.91 P/E ratio, a custom load-path fiber layout works best to manage the high vertical loads. A typical inventory includes a performance mainsail, a Code 1 jib, and an asymmetric spinnaker. With 69m² of sail area, plan to reef around 18-20 knots of true wind.

Conclusion

The FINNFLYER 36 is a sophisticated design that rewards the use of high-tech materials and precise sail shapes. Explore sail options for FINNFLYER 36 to unlock its full racing and cruising potential.