Harken 57mm Cheek Ratchamatic® Block Dinghy Unloaded main and jib sheets

Unloaded main and jib sheets run out freely during mark roundings

Harken Bolt-Down Fairleads are used on boats 6–15 m (20–50 ft) as shallow-angle line deflectors

Harken® Small Boat furling systems allow the trailerable cruising or dinghy sailor to set and furl the jib from the cockpit

lightweight head foils offer significant advancements over the weaker PVC materials used by other manufacturers

Harken 57mm Cheek Ratchamatic® Block Dinghy Unloaded main and jib sheetsPart No. 2633 Sheave (mm)57 mm Sheave (in)2 1 4 in Maximum line (mm)10 mm Maximum line (in)3 8 in Maximum working load (kg)227 kg Maximum working load (lb)500 lb The Carbo Ratchamatic is a load sensing ratchet block that rolls freely in both directions under low loads and automatically engages the ratchet as loads increase. Shifting between ratchet and light air modes is seamless.