Hydra 2000 User Manual
Part 3 - Calibration
HB-0844-02
3-17
Under these conditions it should be zero, any error can be taken
out by the Heel Angle Calibration by adding, or subtracting, the
error from the existing calibration.
Heel Angle Calibration is to be found in the system menu under:
PERFORM
→
→
HEEL,
CALBRATE
→
→
CAL VAL1
3.5.2
Leeway Calibration
Calibrating Leeway is difficult and it may be more accurate to
consult the designer for the vessel’s theoretical figure. In the
absence of a figure a calculation of Leeway Coefficient can be
made using the following formula:
L = K x H
Bs x Bs
where: Bs = Boat Speed
K = Leeway Coefficient
H = Heel Angle
L = Leeway Angle
K the constant that needs to be entered. To establish a value for
leeway coefficient it is necessary to measure the leeway angle at
a particular heel angle and boat speed. One method for this is
shown In Fig 3.3 - Leeway Angle Measurement.
Fig 3.3 Leeway Angle Measurement
Summary of Contents for Hydra 2000
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