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 Ø(mm)57 mm
Sheave Ø(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 Ø(mm)8 mm
Shackle pin Ø(in)5/16 in
Maximum line Ø(mm)12 mm
Maximum line Ø(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
Sheave Ø(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 Ø(mm)8 mm
Shackle pin Ø(in)5/16 in
Maximum line Ø(mm)12 mm
Maximum line Ø(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