Q-block is compact and narrow quadruple block, design to give best performance on small catamarans, like A cat.
High- efficiency ceramic bearings improves feeling and reaction speed to keep perfect mainsail trim.
sheave diameter: 42 mm
minimum rope diameter: 5 mm
maximum rope diameter: 8 mm
weight (w/o rope, shackle): 210 g
max. working load: 500 kg
Two Q-blocks combined with one single block attached to bottom Q-block, and a ratchet tied to the clew, makes perfect 1:10 external mainsheet configuration for A Cat.