Comparing fluke angle and setting ability.
Designers of boat anchors deal in a handful of variables. The holding capacity of an anchor derives from its fluke, particularly the flukes size, shape, and the angle it makes with the shank. Other parts of the anchorshank, roll bar, and stockallow the fluke to set and hold as the designer intended. Based on the shapes and relationships between these components, an anchor fits into one of several broad categories: fluke (Danforth, Fortress, Manson Racer), plow (CQR, Delta, Kobra, SARCA Excel), claw (Bruce, Lewmar Claw, Manson Ray, Super Max), or fisherman (Luke).