Unit 1 MKIV Racing Furler Complete Foil Set - Box 2 of 2

The Harken Unit 1 MKIV Racing Furler Complete Foil Set (Model 7411.FOIL SET) is a high-performance jib reefing and furling system designed for racing and performance-minded cruising sailors. This advanced furling system offers a combination of strength, lightweight construction, and aerodynamic design, making it an essential component for sailors looking to optimize their vessel's performance.

Key Features and Benefits

• Easy Reefing and Furling: The MKIV furling system utilizes multiple rows of large-diameter Torlon® ball bearings in high-load areas, minimizing friction for effortless reefing and furling. This design allows racers and cruisers to quickly adjust their headsail from the safety of the cockpit while maintaining optimal sail shape and speed.
• Durable Construction
  • Strong, lightweight halyard swivel reduces windage and weight aloft
  • Tough triple-interlock foil joints withstand years of torque loading
  • Aluminum components are deep-saturation Hardkote-anodized for UV stabilization and durability
• Versatile Design
  • Adaptable to various rigging options
  • C-shaped open connectors with low-friction plastic isolators for easy installation
  • Double foil grooves allow for fast hoists, douses, and sail changes

Installation and Maintenance

The Harken MKIV Unit 1 is designed for owner installation, making it accessible for DIY boaters. However, proper installation and regular maintenance are crucial for optimal performance and longevity.

Installation Tips:

• Ensure the halyard angle is optimized to prevent wrapping around the headstay
• Position the halyard swivel at the correct height
• Use a halyard deflector if necessary to maintain proper halyard angle

Maintenance Recommendations:

• Regularly flush bearings with fresh water and a detergent solution to prevent salt and dirt buildup
• Inspect and tighten all screws and fittings periodically
• Check for any signs of wear or damage, especially after heavy use or racing conditions

FAQs

Can I use my racing sails with the Harken MKIV furling system?
Yes, most racers can use their #2 or smaller genoas with this system. The MKIV features an easily removable drum, allowing you to secure the sail tack to the deck for racing configurations.

What is the recommended boat size for the Harken Unit 1 MKIV Racing Furler?
The Unit 1 MKIV is typically suitable for boats between 28' to 36' in length, with a standard headstay length of up to 45' 11" (extendable to 52' 11" with additional components).

How does the furling line work on this system?
The furling system uses a specially formulated 7mm low-stretch black line that is abrasion and UV-resistant. It operates on a single line leading from the furling drum to the cockpit, allowing for easy control of the sail.

By choosing the Harken Unit 1 MKIV Racing Furler Complete Foil Set, sailors can enjoy improved headsail control, enhanced performance, and the flexibility to adapt their rig for both racing and cruising conditions. Whether you're a competitive racer or a performance-oriented cruiser, this furling system offers the reliability and efficiency needed for optimal sailing experiences.