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A fabric cone open at both ends.
Also known as: Aerodrome windsock, Wind direction cone
The aerodrome device showing wind direction and approximate strength by the angle and fullness of a fabric cone.
Shows wind direction and approximate strength at an aerodrome.
Contexts: Public information
Gives strength by how fully it lifts, with the angle at which it stands out horizontally standardised, so a reading can be taken by eye without any instrument.
Contexts: Public information
A tapering fabric cone open at both ends, its outline a long triangle, mounted on a mast so it swings freely and fills from the wide end.