Evido EAD-B2000 Manuel du propriétaire télécharger pdf (Page 23)

The zig-zag wind is done by "simultaneously" solving two wind triangles when two

sufficiently different ground tracks and speeds are known(from the GPS) and the TAS

(from the B50) is known). It assumes the wind doesn't change during the track change

which may or may not be a good assumption. It can give a wind from normal zig-zagging

between thermals or "figure eighting" on a ridge as well as giving a quicker wind update

while thermalling which doesn't depend on flying accurate, circular, circles.

You can select zig-zag or drift wind as a default on the PC setup and you can select either

at any time on the B2000. The two calculation methods run simultaneously so if changing

from one to the other there is no delay in seeing the results as they are already stored in the

B2000.

The zig zag wind calculation parameters(averaging etc) are settable from the B2000User

program.

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Evido EAD-B2000 Manuel du propriétaire Page 23