Figure 6-15.-Rate of turn gyro system.
RATE OF TURN SYSTEM
ENGINE FEED Section
The function of the rate of turn system
The ENGINE FEED section contains the
is to provide an indication in degrees of the
switches that control fuel flow to the engines. This
craft's rate of turn. The components of the
section also contains the switches that control the
LCAC rate of turn system are shown in the
fuel valves for the fuel tanks. The switches in this
shaded portions of figure 6-15. The system
section allow the operator to select the primary or
consists of a rate of turn directional gyro, an
secondary fuel pump and control the main engine
indicator, and a power transformer. The
coalescer drains. Other switches in this section allow
400-Hz power panel or command module
the engineer to test the automatic pump shifting
400-Hz load center provides power through
routine. The CHIPZAP switch in this section allows
the power transformer to the directional
the operator to destroy small particles in the
gyro. The output from the directional gyro is
transmission system and main engine sumps.
routed to the CSEP, where the signal is
amplified and conditioned. The CSEP output
APU FEED Section
is routed to the rate of turn indicator
mounted on the operator console.
The auxiliary power unit (APU) FEED section
contains the switches that control the port and
OUTSIDE AIR TEMPERATURE SYSTEM
starboard APU coalescer drains. The sump chip
detector alarm circuitry can be turned on and off
The outside air temperature system provides an
from this section. Switches are also provided to bring
indication of the outside ambient air temperature for
400-Hz power from the aft switchboards to the
display on the AMS flight data display page. The
forward power panels.
temperature probe is mounted on the outside of the
Located to the left of the C&C keyboard are
personnel and equipment module forward bulkhead.
switches and knobs that control panel illuminations
An illustration of the outside air temperature probe is
(not shown). A push-button switch is provided to test
shown in figure 6-16.
the
AMS
and
C&C
lighting.