TM 1-1520-238-10
4-28
Table 4-9.
Pilot Fire Control Panel/Indicator Functions – continued
Control/
Indicator
Function
Position
RKT
OFF
Disables SAFE/ARM power to the Aerial Rocket Control Subsystem (ARCS).
NRML
Enables pilot SAFE/ARM power to the ARCS and permits pylon articulation during
pilot initiated rocket firing.
GND STOW
Places the wing stores in the ground stow position; parallel with the ground on level
terrain.
GUN
OFF
Disables pilot SAFE/ARM power to the M-230E1, 30mm gun subsystem.
NRML
Enables pilot SAFE/ARM power to the gun subsystem and permits slaving of the gun
turret to the pilot LOS when actioned.
FXD
Enables pilot SAFE/ARM power to the gun subsystem and permits positioning of the
gun turret to the fixed forward position when actioned.
MSL
OFF
Disables pilot SAFE/ARM power to the Hellfire missile subsystem.
ON
Enables pilot SAFE/ARM power to the Hellfire missile subsystem.
SIGHT SEL
STBY
Deselects all lines-of-sight and stows sensor turret. IHADSS LOS active for boresight
only.
HMD
Selects the helmet mounted display (HMD) as the pilot reference LOS and activates
the display electronics for display of flight symbology.
NVS
Activates the NVS select switch on the collective switchbox for sensor selection. The
HDU will display the selected night vision sensor FLIR video with flight symbology.
ACQ SEL
OFF
No cueing symbology displayed to the pilot.
CPG
Pilot receives cueing symbology to the CPG selected sight LOS.
NVS FXD
If the pilot has selected an NVS sensor, the sensor turret will be slaved to the fixed
forward position.
VID SEL
CPG
Permits the pilot to observe the CPG selected video on his HMD.
PLT
Permits the pilot to observe his selected sensor video and symbology on the HMD.
GRAY SC
Displays to the pilot on his HMD a 10 shades of gray scale. To be used in calibration
of the HMD brightness and contrast.
ACM
Auto Control Module. The switch is used to maintain an optimum gain and level setting
of the selected night vision sensor during varying thermal scene content or when
switching FLIR polarity.
