Application
visual identification of direction and speed of wind at airports and heliports
Certificate basis
ICAO ANNEX 14 Volume I 3rd
FAA Specification AC 150/5345-27 C
Description/properties
when air moves with the speed of at least 6 km/hour, the revolving system situated at the top part of the pole on bearing will turn in direction of this movement
top hole of the wind sleeve takes in the air stream and the sleeve swings. At the wind speed of at least 28 km/hour the sleeve inflates and indicates thus visually wind direction and speed
Wind Cone
it is made from the mixture cotton and synthetic material in accordance with the standard EN 10204-2.2
two colour executions
when inflated by air it gets shape of truncated cone
Construction of shell
it keeps the entry hole of the cone open even at absolute windlessness, it supports the cone and keeps it in the required shape at the distance of three eights of its total length
structure made of Al tubes is designed in such a way that it prevents accumulation of water in the cone
shell bearings are self-lubricating