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3.2 Standby (S) mode
Autopilot is not operating for vessel heading control.
In this mode, the AlphaPilot MFS Control Unit tracks and displays Actual Heading, Rate of Turn (ROT)
and Rudder Angle etc. and will continue in a tracking mode until the Autopilot is engaged.
The Autopilot can be switched OFF at any time by a continuous two seconds
NOTICE
ON/OFF button operation.
Autopilot will go into Standby (S) mode automatically when the external steering mode selector is
switched to the 'NFU' position.
3.3 FU (F) mode
Autopilot is not operating for vessel heading control. In FU mode, the vessel can be hand steered by
using a FU Tiller or Steering wheel. Hand steering is typically used when the vessel is manoeuvring,
and navigating in restricted waters, channels, and areas with traffic density traffic density.
Autopilot will go into FU (F) mode automatically when the external steering mode selector is
switched to the 'FU' position.
3.4 Auto (A) control mode
3.4.1 Introduction
Automatic steering by means of heading (course) control. Auto (A) control mode is the main
autopilot control mode which automatically steers the vessel to a pre-set heading.
When wind and/or current will push the vessel off course, Auto (A) control mode will measure and
counteract to keep the vessel to the pre-set heading.
22 | Operating modes
Figure 3: A mode - Wind and current factor
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