Originally Posted by
PPRuNe Towers
W/V derived from a mathematical process called
Kalman Filtering - it must be a complex process as it introduces a 7 or 8 second lag in the EFIS/FMC displays. More meat in the link above.
Same method and
hysteresis with ATC surface wind processing and reporting. If you really need to know instant W/V ask for 'spot wind.'
Rob
In gliding we now have instantaneous true wind and lift/sink indications available from several manufacturers.
Hawk is the best known one.
No reason you shouldn’t be able to get this in light a/c but it’s probably not so much of a game-changer as it is in a sailplane.