Low-friction Carbo AirBlocks® are lightweight, strong, reliable and affordable. These are features all sailors look for when choosing sail controls and a real breakthrough in block design. Companions to Harken’s® popular Black Magic® line, these small, compact blocks have very high working loads for safe, easy trimming no matter how hard the wind blows. Sideplates of high-strength engineering resin are UV stabilized to provide excellent protection against long-term exposure to salt water and sun. Carbo blocks are perfect for the small-diameter hard lines favored by racers.
The compact 29mm Carbo is extremely strong. Use Harken's miniature Carbo as a mainsheet block on small dinghies such as the Optimist, or for low-friction control blocks on any size boat.
Doubles and triples feature U-Locks to hold the swivel in front/side position, or to let it spin freely. The triple’s compact cam arm supports high-load purchases of 5:1 or 6:1.
Use for: Outhauls, Cunninghams, Vangs, Traveler controls, Barberhaulers, Flag halyards
Sheave dia.: 1-1/8 in (29 mm)
Length: 2-7/8 in (73 mm)
Weight w/shackle: 4.6 oz (130 g)
Shackle pin dia.: 3/16 in (5 mm)
Max. line dia.: 1/4 in (6 mm)
Max. working load: 750 lb (340 kg)
Breaking load: 1500 lb (680 kg)
Maximum working and breaking load based on cam strength.