SELF-ALIGNING MAINSAIL TRACKING TURRET + BLOCK

A5266 - Self-Aligning Mainsheet Jammer – Auto-Adjusting Central Control System

The only self-aligning mainsheet jammer available on the market, delivering hands-free automatic jammer rotation through tacks and gybes for enhanced boat handling and performance.

Innovative Self-Aligning Technology: The system utilizes an offset ratchet block configuration to create automatic alignment. By positioning the block outward from the swivel axis and angling it away from the cleat, the A5266 mainsheet system generates rotational force that automatically orients the cleat away from the leeward side during maneuvers.

This intelligent design prevents sheet wrap around the block and provides superior control for fast, seamless tacks and gybes, reducing crew workload in critical moments.

Watch the demonstration video below to see the self-aligning system in action.

Available in two configurations: standalone self-aligning jammer or complete assembly with integrated 60mm Pro-Ratchet block.

Features precision cold-forged bearing technology with ball-retention groove, ensuring smooth, effortless rotation while eliminating lateral arm play for consistent automatic alignment.

Adjustable rotation settings of 180°, 220°, or 360° via repositionable stopper pins on the arm's underside, enabling customization for different boat configurations.

Optimized jammer arm geometry provides reliable line engagement and quick release when sheet trimming is required.

Standard Equipment:

Medium aluminium cam cleat with Mega Pro-Lead fairlead system
Offset ratchet block mounting for self-alignment
Cold-forged stainless steel bearing assembly
Adjustable rotation capability
Marine-grade corrosion-resistant components
Download the technical specification PDF above for complete dimensional drawings and installation guidelines.

Ideal for performance dinghies and keelboats where rapid maneuvers and efficient crew movement are essential.