Raymarine i70 Operation Instructions Manual page 44

1. AWA (Apparent Wind Angle) / AWS (Apparent Wind Speed) dial
2. Digital Depth
3. Digital Speed
AWA/AWS dial overview
The AWA/AWS dial identifies the current Apparent Wind Angle (AWA), Apparent Wind Speed (AWS),
minimum wind angle, and maximum wind angle.
It's important to be aware that Apparent Wind is different from True Wind, because wind direction
and strength become a lot more complicated once a vessel starts to move. When this happens,
the wind direction and strength measurements start reflecting a combination of not only the wind
conditions, but also the vessel's movement and how it is affected by those wind conditions. In this
respect, True Wind speed and angle data reflects the wind conditions with respect to a static object.
In contrast, Apparent Wind speed and angle data reflects the wind conditions with respect to a
vessel when it is underway.
Note:
As part of the wind transducer calibration process, you can also adjust the Apparent
Wind Speed (AWS) reading to compensate for any small errors which may exist in the
data being received from the connected wind transducer. For more information, refer to:
p.37 — Adjusting apparent wind speed
1. Minimum AWA indicator (The minimum AWA indicator can be reset from the Quick options menu:
Menu > Quick Options > Reset Min. AWA.)
2. AWA dial
3. Current AWA
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