1) Drag sail 
A stabilizer deployed in the water for heaving to in heavy weather. It acts as a brake and keeps the hull in line with the wind and perpendicular to waves. Often in the form of a large bag made of heavy canvas. Also see drogue.
A stabilizer deployed in the water for heaving to in heavy weather. It acts as a brake and keeps the hull in line with the wind and perpendicular to waves. Often in the form of a large bag made of heavy canvas. Also see drogue.
A sea anchor (also known as a drift anchor, drift sock, para-anchor or boat brake) is a device used to stabilize a boat in heavy weather. Rather than tethering the boat to the seabed, the sea anchor increases the drag through the water and thus acts as a brake. Often similar in design to the sea anchor is the usually smaller drogue which is attach...
• See Drag sail, under 4th Drag.
An arrangement such as a drogue which is designed to restrain a boat`s movement through the water but without any connection to the land.
Device used for slowing a boat down, drogue.
Sea' an'chor (Nautical) See Drag sail , under 4th Drag . 
A stabilizer deployed in the water for heaving to in heavy weather. It acts as a brake and keeps the hull in line with the wind and perpendicular to waves.
[n] - restraint consisting of a canvas covered frame that floats behind a vessel
noun restraint consisting of a canvas covered frame that floats behind a vessel; prevents drifting or maintains the heading into a wind