Gyropilot Settings

TM 55-1915-200-10

(1) Set RUD LIMIT Control (60, Sheet 2 of 2)

as desired.

NOTE

ensure

correct

heading

NOTE

indication, it is imperative that the

Adjust to set the rudder inside limits

Heading Repeater be synchronized

as desired. Higher settings allow

with the gyrocompass. The repeater

larger rudder angles, lower settings

remains synchronized even when the

reduce maximum rudder angles used

system is off, provided gyrocompass

in heading changing but may

data is available.

interface with heading keeping.

f. Set the Mode Selector switch (47, Sheet 1 of 2)

(2) Set WEATHER Control (61, Sheet 2 of 2)

to synchronize.

to 0 in calm weather.

g. Rotate the Heading Selector knob (53) until the

dials show the same heading indication at the course

NOTE

heading index lubber line (56) as the gyrocompass

The optimum setting for a particular

heading.

sea condition is equal to the number

of degrees of natural yaw from the

NOTE

selected heading. For example, if the

Position the Mode Selector (47) to

ship is yawing plus or minus 3 degrees

from the ordered heading when the

gyrocompass and note that the

WEATHER control is set to 0, set the

repeater and the gyrocompass

WEATHER control to 3.

headings are the same.

If the

headings are not the same, repeat

step above.

(3) Set RUD MULT (64, Sheet 2 of 2) to

minimum setting.

h. Position the Heading Selector knob (53) as

NOTE

necessary to align the pointer under the course heading

This will prevent the vessel from

index lubber line (56).

wandering from the ordered heading

i. Energize the Gyropilot by positioning the

in a calm sea. Operation at reduced

Steering Control switch, (62, Sheet 2 of 2) to the HAND

speed usually requires a higher

position.

setting.

This control increases

rudder angle ordered for a given

NOTE

heading.

Always go into AUTO operation from

the HAND mode with the rudder at

amidships and with no ordered

l. To change heading, rotate the heading (outer)

heading

change

prevent

scale of the Heading Selector (53, Sheet 1 of 2) to the

desired heading or rotate the relative heading change

undesirable rudder movement.

(inner) scale to the desired heading change.

m. As the vessel comes to the new heading, verify

j. Set Mode switch (62) to AUTO and note that the

that the course heading, (outer) scale, and the vernier

vessel steadies on the indicated heading.

heading, (middle) scale, indicate the new heading at the

k. Adjust the Control Amplifier controls as follows

for optimum heading control:

2-364