Part No. 3241
Sheave Ø (mm) 75 mm
Sheave Ø (in) 2 15/16 in
Maximum line Ø (mm) 14 mm
Maximum line Ø (in) 9/16 in
Maximum working load (kg) 2268 kg
Maximum working load (lb) 5000
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: mainsheet, runner, halyard, and spinnaker systems. A center cage keeps Torlon® roller bearings separated and parallel to reduce friction. Shackle blocks lock in two directions or swivel to keep line from twisting. Torlon is a registered trademark of Solvay Advanced Polymers L.L.C.
| Sheave Ø (mm) | 75 mm |
| Sheave Ø (in) | 2 15/16 in |
| Length (mm) | 199 mm |
| Length (in) | 7 13/16 in |
| Weight (g) | 503 g |
| Weight (oz) | 17.76 oz |
| Shackle pin Ø (mm) | 8 mm |
| Shackle pin Ø (in) | 5/16 in |
| 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 |
| Breaking load (kg) | 4536 kg |
| Breaking load (lb) | 10000 lb |