2.
BRT switch -Full clockwise.
3.
ILLUM ALL soft key -Press. Check caution advisory grid for complete display.
4.
Operational mode(s) -As desired.
4.5.4.2 Shutdown Procedure.
1. OFF NGT DAY switch -OFF.
4.6 FORWARD LOOKING INFRARED SYSTEM AN/ AAQ-22.
The FLIR shall not be used for pilotage.
The forward looking infrared (FLIR) system (Figure 4-6) detects infrared radiation. The system consists of a Turret-FLIR unit (TFU), central electronics unit (CEU), and a hand control unit (HCU). The system uses the HCU for TFU movement, target cursor movement, and automatic video tracking. The FLIR can operate during night, day, and ad-verse weather conditions. The system shall only be used for target recognition and surveillance. The FLIR sensor con-verts infrared (IR) radiation patterns within its .eld of view to a video format, which can be viewed on the multi func-tion displays (MFD). The system generates visible and thermal video of the area within the .eld of view and dis-plays it on the MFDs. System status information is dis-played above and below the imagery. Symbology is over-laid on the imagery and may be suppressed or decluttered. Power for the FLIR system is provided from the No.1 dc primary bus through a circuit breaker marked FLIR VCR and from the No. 2 dc primary bus through a circuit breaker marked FLIR.
4.6.1 Turret.
Optical lens of FLIR is easily scratched. To avoid damage, use cleaning procedures and supplies referenced in the mainte-nance manual.
The FLIR turret (Figure 3-1) is three axis, and gyro sta-
bilized in outer azimuth, inner azimuth, and elevation. The turret provides the remote movement of the FLIR line of sight, corresponding to the center of the imaged scene, to any position within the .eld of regard (FOR). The FOR is +30° to -120° in elevation and a continuous 360° in azi-muth from the look ahead position.
4.6.2 Controls and Function. The controls for the FLIR system are on the front of the HCU (Figure 4-6). The function of each is as follows:
Change 4 4-17
POINTING CONTROL
CONTROL
PWR switch OFF ON
Menu control
MENU
AB0799
SA
FUNCTION
For stowing the TFU prior to turning the power OFF.Inthe STOW position the TFU is rotated to the 180° azimuth, +130° elevation to protect the windows. This mode is activated by the pilot as part of the normal power off sequence.
Used to execute a change or selection in menus and to close the menus.
Provides the ability to freeze the IR video image at any time. To freeze the image toggle the FREEZE switch. To return to live video toggle the FREEZE switch again.
Used to select menus or change parameters and to open sub-menus within the menu pages.
Three position switch used to alter .eld of view.
FUNCTION
OFF is the normal power down for the system.
Power is applied to the system and on completion of the start-up BIT sequence system status is reported.
Used to display and activate menu controlled functions.
Activates the menu page by momentarily toggling the switch. The menu page is displayed on the left side of the MFD overlaid on the imagery.
CONTROL STOW
LOCK
FREEZE
HOOK
FOV switch
4-18 Change 4
CONTROL FUNCTION CONTROL FUNCTION
WFOV NFOV Sets display to 28° horizontal, 17° vertical .eld of view. Sets display to 5° horizontal, 3° vertical .eld of view. 2X ZOOM Sets narrow .eld magni.cation. display to 2X
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