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Shielding (3-Levels): FOIL (Overall)
and monitor plankton data such as concentration contours and plankton front strength
and multihull sailors
All sizes can be stacked to create double versions - MWL of the top sheaves must not exceed 50% of the total block load rating
The NAC-1 Autopilot Computer is recommended for boats up to 9 metres (30 feet) in length
Harken 80mm Aluminum Element Fiddle Block Swivel, Becket Boat Nacra Infusion Shielding (3-Levels): FOIL (Overall)Element blocks introduce sideplates that combine forged aluminum and compound curves for strength. They are simultaneously contemporary and very robust. Elements design pairs the minimum amount of metal required to protect the sheave with a proven journal bearing. So size for size, Element is priced significantly lower, than our previously least expensive blocks. Sideplates are hardcoat anodized to resist corrosion. A tough composite bearing sheave