Part No 3391
Maximum working load (kg) 750 kg
Maximum working load (lb) 1653 lb
Maximum line Ø (mm) 10 mm
Maximum line Ø (in) 3/8 in
Sheave Ø (mm) 45 mm
Sheave Ø (in) 1 3/4 in
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.
Part No 3391
Maximum working load (kg) 750 kg
Maximum working load (lb) 1653 lb
Maximum line Ø (mm) 10 mm
Maximum line Ø (in) 3/8 in
Sheave Ø (mm) 45 mm
Sheave Ø (in) 1 3/4 in
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.
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