Plow anchors, named for their resemblance to an agricultural plow, are among the most popular and versatile primary anchors for cruising sailboats and powerboats. They are engineered to land on their side and dig deeply into the seabed as horizontal tension is applied.
Types of Plow Anchors
Plow anchors generally fall into two distinct design categories:
· Hinged Plow (CQR Style): These feature a pivoting mechanical joint between the shank and the fluke. The hinge allows the boat to swing with shifting winds or tides without immediately dislodging the fluke from the seabed. They are highly favored by bluewater cruisers but have less holding power pound-for-pound than modern designs.
· Rigid Wing (Delta Style): Built as a solid, one-piece frame, these anchors feature a lead-ballasted tip and a low center of gravity. The lack of moving parts makes them easier to handle, and they are highly reliable at self-launching from standard bow rollers.
Seabed Performance
Plow anchors are highly versatile all-around performers but excel in specific bottom types:
· Excellent: Sand, pebbles, hard clay, and heavy grass or weeds (the sharp point cuts through vegetation to find a grip).
· Moderate: Soft mud (they can "plow" or drag through very loose silt under heavy loads).
· Poor: Solid rock or thick shale (the point cannot penetrate or hook effectively).