DELTA Drogues increase steering control in large seas. There are a number of reasons to use a drogue: it helps reduce the yawing of a vessel in following seas so that it does not broach; it slows the vessel down so that waves pass by; it can help orient a boat passing through a rough entrance when streamed from its upwind quarter; and it can help a towed vessel to behave better at the end of a tow line.
Since it is constructed of fabric, it stores in a small amount of space compared to solid drogues. It is supplied without a tether, although an anchor line or long tow line can be used.