With phosphorbronze bearings mounted on steel pivot. Pillar terminates in 1 inch BSP ( male) thread, complete with lock - nut . Height 38 cms. With mark NEWS points....
It meets three important requirements for accurate indication of Wind direction. It is designed to produce the maximum torque relative to Its moment of inertia, for a given change in wind directions it rotates with the minimum of friction, and is...
A weather vane made of sturdy plastic or metal. The large arrow is free to rotate and will come to rest pointing to the wind direction. It can be held or fixed to a post. Height : 30cm (minimum) One set is composed of 2 pcs....
Designed to produce maximum torque relative to its moment of inertia as for a given change in wind direction, it is rotated with the minimum of friction and is balanced to avoid bias towards any particular direction. Balanced vane with bearing...
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