Raytheon Anschütz AP02-S01, Manual

Page: 28 / 166

PILOTSTAR D
1--12 Edition: March 13, 2009
3060.DOC012
1.5 Function of the TRIM MODE (TRM)
The TRIM Mode is a so called “Working Mode” and could be essential to ships with low
speed, as there could be trawlers, towboats (tugs) or other work boats.
The Trim Mode is nearest a heading control function with specific operating features.
These operating features can be used, but is no necessity.
To adjust this TIM MODE it is necessary to define the parameters first.
Parameters are: TRM--yawing, TRM--rudder and TRM--counterrudder.
To establish criteria it is to decide if it is necessary to apply a heading control with a high
TRM--rudder amplification for lower speeds or
if there is an asymmetric load to the ship with manual steering possibility and a self--af-
fected constant--rudder function.
See also section 2.2.10 for operating the TRIM function
1.5.1 Recommended applications
Tagging a load with low speed and less manoeuvre
There should be a heading control without manual intervention.
The parameter are pre--adjusted to a high rudder amplification together with a lower
ship‘s speed.
In this application the features of the second set of parameters are used only.
Rudder limit is cancelled to work with greater rudder angles.