Raymarine RayPilot 650 User Manual page 55

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2. Sail your boat at cruising speed in clear water:
3. Press AUTO to enter Auto mode, then alter course by 40°:
To adjust the default rudder gain:
1. Access the Rudder Gain screen in Calibration mode.
2. Use the
3. Press and hold STBY for 2 seconds to save the changes.
4. Press AUTO to check the autopilot performance in Auto mode.
RayPilot 650 Control Unit - Owner's Handbook
• you will find it easiest to recognize the steering response in
calm sea conditions where wave action does not mask basic
steering performance
• if the rudder gain is adjusted correctly, the 40° course change
should result in a crisp turn followed by an overshoot of no
more than 5°
• if the rudder gain setting is too high, the 40° course change
will result in a distinct overshoot of more than 5° and there
may be a distinct 'S' in the course ( A )
Correct this oversteer by reducing the rudder gain setting.
• if the rudder gain is too low, the boat's performance will be
sluggish – it will take a long time to make the 40° turn and
there will be no overshoot ( B )
Correct this understeer by increasing the rudder gain setting.
Rudder setting
too low
L
( NAV ) and
adjust the rudder gain as necessary.
New
heading
B
Rudder setting
too high
Correct rudder
setting
M
( LIGHTS ) keys or course change knob to
New
heading
A
New
heading
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