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navigation conditions. Therefore, it has to be an average value, valid for all weather
conditions or alternatively, you can alter that value upon the wind strength.
The drift angle for each boat speed and heel angle is shown with the polar tables
supplied by your architect. Calculate the drift factors with the formula below, and
determine the average value.
Use a 10.0 factor if you cannot find the relevant data.
i.e. the drift with 17° heel angle and 7 knots boat speed is:
10 x 17° / 7
2
nds
+ 0° = 3.46° drift angle
As an alternative to this formula, an offset value can be set to force the drift angle by
setting the factor to 0 and entering the desired value of the drift angle as an offset.
A maximum value can be set for the drift angle, i.e. with a 5° limit; the final result will
never exceed 5° even though the data is still processed in the same way.
Drift angle data processing procedure:
• Select « Leeway Angle » and press .
• Choose « Calibration coefficient » and press .
• With , adjust the value selected and save with .
The procedure is the same for setting the maximum drift angle and the offset for drift
angle.
2.6.10 Sensor access code
The sensors access code is meant to protect all calibrations for the sensors
connected to the Topline bus. Once activated, the access to the calibration menu is
locked.
Procedure for sensor access code setting:
• Select « Access code » and press
.
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