Black Magic Air blocks are a top favourite of Big Boat performance racers and cruisers. These lightweight, free-running, powerful performers are used for sail controls that see lots of action: mainsheet, runner, halyard, and spinnaker systems. A centre cage keeps Torlon® roller bearings separated and parallel to reduce friction. The sheave centre carries primary load, allowing a smaller, lighter weight block. The soft-attachment Loop block has a removable deadend post for attachment to a padeye. Lashings can also be used. Torlon is a registered trademark of Solvay Advanced Polymers L.L.C.
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Specifications
| Bearing type | Roller bearing |
| Bearing material | Torlon® |
| Recommended line - Max Ø (mm) | 12 |
| Total length (mm) | 76 |
| Sheave Ø (mm) | 57 |
| Sideplate material | Aluminum |
| Ratchet | No |
| Sheave material | Aluminium |
| SWL (kg) | 1134 |
| NBL (kg) | 2268 |
| Weight (g) | 92 |
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