B&G Hydra 2000, Руководство пользователя

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Hydra 2000 User Manual
Part 3 - Calibration
HB-0844-02
3-10
3.3.2 Apparent Wind Angle Calibration (AWA)
To discover the AWA alignment error we can employ one of two
techniques. The first is simply to go head to wind and read the
value of the Apparent Wind Angle. If it reads anything other than 0,
you have an error. For example, if the Apparent Wind Angle reads
4° then you should enter -4 as the calibration value. If it is less
than 0 then the opposite applies.
The second method involves a sailing trial as shown in Fig 3.2 -
Masthead Unit Alignment.
Fig 3.2 - Masthead Unit Alignment
(1) Whilst monitoring APP W/A on a display, sail upwind
at the optimum close hauled angle.
(2) When conditions are steady, write down the mean
APP W/A reading.
(3) Tack the vessel and sail at the optimum close haul
position as before.