The AIM-1/EXL aiming light is mounted on the gun saddle of the universal turret. It enables low-light/night target acquisition for the turret gun by using a borsighted infrared laser beam that can only be viewed with night vision goggles ( NVGs ). The AIM-1/EXL subsystem can be used in conjunction with the Helmet Sight Subsystem (HSS) when NVGs are worn. The AIM-1/EXL aiming light can operate in continuous mode or activated when ACTION switch on pilots cyclic control is pressed. Subsystem operations are controlled by the switch/relay assembly located on the outboard side of the pilot's ash receiver. When switch is in NORM position the ACTION switch governs the laser emission. When switch is in CONT position the laser emissions are continuous. To disable the subsystem place switch in OFF position. 28 Vdc power is supplied to the AIM-1/EXL subsystem through the TURRET DRIVE MOTOR circuit breaker 19CB7 located on the pilot armament circuit breaker panel.