2. to ensure that voltage or stray voltage is not present before electrical connection of certain launchers, such as rocket launchers, is made. These two functions are called aircraft release and system control checks. Normally, you perform aircraft release and system control checks before the weapons are installed on the aircraft. However, some checks require the weapons to be loaded on the aircraft. As part of the loading process, the Sparrow, Phoenix, Walleye, and Sidewinder (on some aircraft) weapons are electrically mated to the aircraft. Then, the external power is applied to the aircraft, and a missile-on-aircraft test (MOAT) is performed. This test is normally performed during the prior-to-launch sequence. You conduct the Sparrow and Phoenix MOAT by activating the circuits within the aircraft. Then, you observe the indications as they are received in the cockpit, No test equipment is required to perform this test. The Sidewinder MOAT is performed by at least two team members and a team leader using an audio headset and a TTU-304/E tester. The TTU-304/E tester is basically a pencil flashlight with an infrared filter lens. The person in the cockpit plugs the headset into the audio connection and turns on the switches indicated in the checklist. These switches are Sidewinder COOL, STATION SELECT, and AUDIO CONTROL. The A1. A2. A3. A4. AS. person at the missile station removes the missile protective dome cover. Then, with the tester turned ON, the beam of the tester is moved across the nose of the missile from a distance of 4 to 6 feet. As the missile senses radiation from the tester through the launcher’s audio amplifier, a tone is heard in the headset. If more than one missile is loaded each missile should be tested and the dome covers replaced. Sidewinder MOAT may also be performed during pretaxi arming signals with the pilot as the person in the cockpit. The Walleye MOAT also requires at least three persons and a DSM-77 test set. The DSM-77 test set projects a test image to be received by the Walleye. The test image is displayed on the aircraft cockpit monitor. (See figure 16-11.) With the cockpit switches ON, as listed in the checklist, the Walleye dome cover removed, and the tester mounted on the weapon and switched to LIGHT, a display appears on the aircraft monitor. When the tester is switched to LIGHT-MOTION, the image moves from side to side, diagonally, or up and down, depending upon the position of the tester. The tester control assembly is rotated around the foundation assembly during the testing process. During each position test, the person in the cockpit pulls the trigger switch and the weapon’s television camera will lock on to one of the target dots and follow it as it moves. As REVIEW NUMBER 2 ANSWERS TO QUESTIONS Q1. THROUGH Q5. DESCRIPTION Used to evaluate the operational readiness of the Walleye weapon guidance section cockpit television display Used to perform the operational checks of the AIM-9 missile launching, visual target acquisition system (VTAS), and Sidewinder expanded acquisition mode (SEAM) Used to check the VTAS/SEAM system on AIM-9 missiles Used to vetify the operational status and function of the AIM-7 Sparrow missile on the F-14 aircraft Used to perform circuit continuity tests on Mk 46 torpedo preset circuits TEST SET C. AN/DSM-77 E. AN/ASM-464 A. TS-3279 D. Sparrow missile test set B. B203 torpedo heat and control system test set 16-16