drogue - noun

a funnel-shaped device towed as a target by an airplane

a truncated cloth cone mounted on a mast; used (e.g., at airports) to show the direction of the wind

restraint consisting of a canvas covered frame that floats behind a vessel; prevents drifting or maintains the heading into a wind

a parachute used to decelerate an object that is moving rapidly

drogue - thesaurus

sock   windsock