User guide

Setup and Calibration

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Boat Length

Sets the length of the boat in feet.

The default is 30 Feet.

GPS Bow

Sets the distance in feet of the GPS antenna from the bow of

the boat. The default is 30 Feet.

(Depart) Line Distance Units

Sets the units to be used for showing the distance to the start

line, the options are Feet, Metres, Yards or Boat Lengths (see

Boat Length parameter above)

Airflow Chapter

Airflow Corrections Mode

Switches the built in default corrections ON or OFF

The following airflow correction pages are only visible if Airflow

Corrections mode is set to ON.

Adjustments are applied to the correction curve in the current wind

speed band. For optimum accuracy, adjustments should be applied

in light, medium and strong winds ( 5-10, 15-20, 20-25 knots).

See the Calibration Guide for details of Airflow correction

Upwind Angle adjustment

Modifies the upwind angle correction.

Whilst tacking upwind, if the Wind Direction on the current tack

is seen to be ten degrees high, apply an adjustment value of -

10. If low, apply a + adjustment.

Downwind Angle adjustment

Modifies the downwind angle correction.

Whilst gybing downwind, if the Wind Direction on the current

gybe is seen to be ten degrees high, apply an adjustment value

of -10. If low, apply a + adjustment.