This is a Special Order item. Delivery lead time may take 3-4 weeks.
Black Magic Air blocks are a top favorite of Big Boat performance racers and cruisers. These lightweight, free-running, powerful performers are used for sail controls that see lots of action. Sideplates and sheaves Hard Lube-anodized for maximum UV protection and a smooth surface. Center cage keeps Torlon® roller bearings separated and parallel to reduce friction. Torlon is a registered trademark of Solvay Advanced Polymers L.L.C.
Part No. HBB297: 75mm Aluminum Stand-Up Block
Specifications
- Sheave Ø (mm) 75 mm
- Sheave Ø (in) 3 in
- Length (mm) 145 mm
- Length (in) 6 in
- Width (mm) 77.5 mm
- Width (in) 3 1/16 in
- Weight (g) 430 g
- Weight (oz) 15.4 oz
- Maximum line Ø (mm) 14 mm
- Maximum line Ø (in) 9/16 in
- Maximum working load (kg) 2268 kg
- Maximum working load (lb) 5000 lb
Resources/References:
Need help to design your Harken system - take a look here for the Harken System Diagrams
And here for Harken Manuals & Support Information