Description
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. Low-load blocks have red isolators. They use Torlon? rollers and 316 stainless steel shackles. Standard blocks have 17-4 PH stainless headposts. Torlon is a registered trademark of Solvay Advanced Polymers L.L.C.
Sheave ? (mm) 57 mm
Sheave ? (in) 2 1/4 in
Length (mm) 132 mm
Length (in) 5 3/16 in
Weight (g) 342 g
Weight (oz) 12.05 oz
Shackle pin ? (mm) 8 mm
Shackle pin ? (in) 5/16 in
Maximum line ? (mm) 12 mm
Maximum line ? (in) 7/16 in
Maximum working load (kg) 1250 kg
Maximum working load (lb) 2755 lb
Breaking load (kg) 2500 kg
Breaking load (lb) 5510 lb
