![Harken 40mm Carbo Air Double Fixed Block w/Becket [2643] Brand_Sudbury 6 Hz per knot)](https://cdn.shopify.com/s/files/1/0422/8913/5778/files/79740XL.jpg?v=1744392706)
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6 Hz per knot)
Turning Point’s Four Blade revolutionized the propeller market when it was introduced
Ray91’s built-in loudhailer will make you heard on-deck and across the harbour
No one had ever produced an aluminum propeller with two different blade shapes (they call it Dual Geometry) for 90-300+hp applications
Water transfer
Harken 40mm Carbo Air Double Fixed Block w/Becket [2643] Brand_Sudbury 6 Hz per knot)40mm Carbo Air Double Fixed Block with Becket Low friction Carbo Air blocks are lightweight, strong, reliableand affordable. Companions to the popular Harken Black Magic block line, these small, compact blocks have very high working loads for safe, easy trimming. Specifications: Sheave (mm)40 mm Sheave (in)1 9 16 in Maximum line (mm)10 mm Maximum line (in)3 8 in Maximum working load (kg)440 kg Maximum working load (lb)970 lb