Automatic Control Of Steering Parameters; Power Boat - Simrad AP27 Manual

button. The autopilot will immediately counteract the turn and
the boat will continue straight ahead on the heading read from
the compass the very moment you pressed the AUTO button.
Regain manual steering by pressing the STBY button
2.9

Automatic control of steering parameters

The autopilot provides two different sets of steering parameters
for controlling the response of the boat at different speeds or
wind directions while in AUTO, NAV or WIND modes.

Power boat

The autopilot selects the LO (response) steering parameters
when engaging an automatic mode from STBY provided there is
no speed input. This is a safety feature. When entering an
automatic mode at low speed, the steering parameters may be
changed to HI automatically by input data from a speed log or a
GPS navigator, or manually.
The speed at which the autopilot automatically changes from LO
to HI parameters (or opposite) is determined by the "Transition
Speed" set in the Installation Setup Menu (Sea trial). See
diagram below.
Legend
HI-A
LO-A Low response parameters set automatically
HI-M High response parameters set manually
LO-M Low response parameter set manually
20221586B
High response parameters set automatically
Automatic steering mode
New "caught" heading: 305°
Compass reading: 303° M (magnetic)
or T (true)
Rudder angle: 00°.
Steering parameter: LO-A
Installation
23