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2. STEERING MODES
2-24
4. To escape from the WIND mode, press the STBY key.
2.10.2 Wind angle mode
There are two wind angle modes: AWA (Apparent Wind Angle) and TWA (True Wind
Angle).
AWA: The boat is steered so that the apparent wind angle is constant. AWA mode re-
quires wind angle and speed data from a wind sensor. Use this mode when wind is
stable.
TWA: The boat is steered so that the true wind angle (in relation to ship’s bow) is con-
stant. This mode requires apparent wind angle, apparent wind speed, your boat's
speed and heading. Use this mode when there is an unstable downwind.
To select the wind angle mode, do the following:
NAVpilot-700
Set wind angle
(between heading
and wind direction)
Heading
Rudder angle (analog)
Steering mode
Wind angle indicator
(Triangle moves with wind.)
HDG T
Heading mode
T: True
M: Magnetic
22.1°S
Wind angle
S 16°
18°
Compass rose
Rudder
angle
20 10 5 5 10 20
COMPASS
RUDDER
P1°
Boat's
heading
True wind
angle (TWA)
N
Apparent wind
(AW)
True wind
(TW)
Apparent wind angle (AWA)
Own boat's
movement
When running on engine, use
the TWA mode.
The autopilot cannnot control your
boat when its speed exceeds the
true wind speed in AWA mode,
which can lead to a potentially
dangerous situation.
NOTICE