B&G Hydra 2000, User Manual

Page: 37 / 147

Hydra 2000 User Manual
Part 2 - Operating Information
HB-0844-02
2- 21
The apparent wind angle is the angle between the boat's bow and
the wind blowing across deck (at mast height). It is a basic
number, useful in its own right like Boat Speed, Heading and
Apparent Wind Speed and provides the starting point for the
higher level, calculated functions.
A special analogue indicator, Magnified Wind Indicator, which only
shows the 0-50 upwind/downwind sector of Apparent Wind Angle
in a magnified form is available. This is described in
Part 5 -
Options.
2.11.3 Apparent Wind Speed
Menu Heading: WIND
Function Text: APP W/S
Update Rate: Twice per second
Units: Knots or metres per second
Notes
1. Variable damping 0-99 seconds.
2. Audible, high/low alarm available.
3. Analogue indicator available.
The Apparent Wind Speed is the speed of the wind blowing
across the deck at mast height. A basic number from which the
calculated functions are derived and important in its own right as a
lot of sail choices are judged by the Apparent Wind Speed.
2.11.4 Average Speed
Menu Heading: SPEED
Function Text: AVG SPD
Update Rate: Once per second
Units: Knots
Average speed is a trip function that averages your speed through
the water over the period the trip log has been running, i.e.
Trip Log
Time it has been running