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2.9.7 Statistics for the last hour
True Wind Direction, average of the true wind direction during the past hour.
Wind shift, calculation of the true wind direction standard deviation for the past hour.
Average wind speed, average of the true wind speed data for the past hour.
Gusts, calculation of the of true wind speed standard deviation for the past hour.
Maximum Speed, maximum speed averaged on 12 seconds laps time.
It is necessary to set up “stripchart configuration” to have access to the last hour
statistics.
2.9.8 Boat’s Parameters
Enter the relevant data for increased accuracy in the Regatta page.
Tack Angle: enter the boat’s tack angle so the boat speed recovering after a tack
can be displayed.
Boat’s size: this data is used to calculate the distance to the starting line in boat’s
lengths.
GPS antenna’s distance to bow: this data is required to calculate the distance to
the starting line in meters and the time to the starting line.
2.10 INSTRUMENTS CALIBRATION
2.10.1 Introduction
Accurate and realistic data requires good calibration of the sensors. Without
calibration you will not get accurate data for true wind direction, true wind speed,
measured drift,...
Poor calibration will produce mistakes that will affect your tactical decisions.
It is recommended to proceed to calibration in moderate wind conditions and steady
water. Better results can be achieved when there is no current in the sailing area
being used for calibration.
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