Table 2-1. Description of Operator's Controls and Indicators - CONT

TM 55-1915-200-10

Table 2-1. Description of Operator's Controls and Indicators - CONT

Key

Control or Indicator

Function

Pilothouse Steering Cabinet (FIGURE 2-1) - continued

Synchronize Mode

Provides manual synchronization of

the compass repeater to the gyrocompass.

Movable True Heading Order

Pointer is controlled

by heading

Pointer

selector control. When rotated,

selects a new heading to steer.

Relative Heading Change

Indicates relative heading change

Scale

order, graduated in five degree

increments between 0 and 180 degrees.

Heading Selector Knob

Rotated to select new true heading

(outer scale) or relative heading change

(inner scale).

Vernier Heading Scale

Indicates heading, graduated in

1 degree increments between 1 and 10

degrees.

Dimmer Control

Controls illumination. Dims

control amplifier and system components.

Course Heading Index

Indicates compass heading.

(Lubber Line)

DIMMER (Switch)

Controls illumination of steering

selector panel.

LAMP TEST (Pushbutton)

Tests steering panel lighting.

Starboard Rudder Indicator

Lights green to indicate starboard

rudder order.

RUD LIMIT Control

Limits rudder angle between 5 and

45 degrees.

WEATHER Control

System operates at reduced sensitivity

(calibrated increments of 0 to 5 degrees

to control amount of heading error or

yaw before sensitivity is automatically

increased) until vessel's heading or yaw

is beyond the setting, at which point

sensitivity is automatically increased

to correct vessel's position within the

low sensitivity region. This control is

adjusted to reduce ineffective rudder

activity in bad weather.

2-9