A windsock is
a conical textile tube designed
to indicate wind direction
and relative wind
speed. Windsocks typically are used at airports and
at Petro Chemical Plants Oil and Gas . Refinery Plants. there is risk and danger from gaseous leakage.
They are sometimes located alongside highways at
windy locations.
Wind
direction is the opposite of the direction in which the windsock is
pointing (note that wind directions are conventionally specified as being the compass
point from which the wind originates; so a windsock pointing due east indicates
a westly. Windspeed is indicated by the windsock's angle relative
to the mounting pole;
in high win it fly horizontally and when
low winds, the windsock droops.
Refer FAA standards
referenced below,
1)
15-knot (28 km/h; 17 mph) wind will fully extend the
properly functioning windsock.
2)
A 3-knot (5.6 km/h;
3.5 mph) breeze will
cause the properly functioning windsock to orient itself according to the wind.
At many airports,
windsocks are lighted at night,
either by flood
lights on top surrounding it or with one mounted on the pole shining
inside it.
Windsocks
are also popular with children and can have bright and colourful designs or
make windsock flag. These windsocks are not particularly functional and mostly
for decoration, however they can be used as a basic guide to wind direction and
speed. You can buy winsocks from wind sock suppliers .
Info from Wikipedia
Info from Wikipedia
