Figure 6-16.--LOP bottom panel.
The shaft brake indicator will illuminate to display
LOP BOTTOM PANEL
the actual status of the shaft brake, either
ENGAGED or DISENGAGED.
The LOP bottom panel (fig. 6-16) has a
The third indicator, labeled PROP HYDRAU-
pitch control lever, two edgewise meters,
LIC PRESS LOW, will alert you when the CPP
three indicators, a push-button indicator, and
hydraulic system pressure is below 40 psig.
two throttle control levers. Only manual throt-
The two REMOTE THROTTLE CONTROL
tle and pitch control is available at the
levers, labeled ENGINE 1B and ENGINE 1A
LOP.
respectively, control the power level of each GTE.
The first lever, labeled PITCH CONTROL,
The throttles are controlled in increments of
controls the pitch of the propeller. It is only
percent power.
operative when the LOP is in control of both
GTEs. An indicator, labeled ASTERN PITCH,
LOP FUSE PANEL
illuminates when the propeller pitch is actually in
The LOP fuse panel (fig. 6-17) is located on
the astern direction. The first edgewise meter,
the lower left section of the LOP. It contains the
labeled PITCH, displays the actual propeller
28-volt dc fuses for the LOP, the enclosures, and
pitch. The second edgewise meter is horizontal
the transducers that input to the LOP.
and labeled SHAFT SPEED. It displays the speed
of the shaft in rpm. The second indicator,
labeled ENGAGED/DISENGAGED, and the
SUMMARY
push-button indicator, labeled ENGAGE/DIS-
This chapter has introduced you to the opera-
ENGAGE, control and monitor the SHAFT
tion of the FFG-class ship engineering plant from
BRAKE. When you depress the shaft brake
the PCC in the CCS and the LOP in the MER.
control push button, it will illuminate the
Most GSs assigned to an FFG-class ship will stand
command selected. The shaft brake will only
watches at one time or another in the CCS. For
activate when the following permissives are met:
this reason, you should be very familiar with the
capabilities of these consoles. Like all other
Pitch at zero
material in this TRAMAN, this chapter was
written to form a basis to start your qualifications
Shaft speed below 75 rpm
at watch stations on your ship. Even if you
are not assigned to an FFG-class ship, your
Throttles at idle
knowledge of this material will help you advance
in rate and make you more valuable to the Navy.
Station in control
6-36
