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LAU-7/A (series) guided missile launcher - 14023_117
Snubber Mount Fitting Assembly, Aft Fairing Latch Assembly, and Aft Fairing Assembly - 14023_119

Aviation Ordinanceman 2 & 3 - Aviation theories and other practices
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the nitrogen system supply tube is routed through the electrical wiring harness to the power supply. DETENT, DETENT LOCK, DETENT-LOCK SOLENOID, AND SNUBBERS.— The detent, detent lock, detent-lock solenoid, and forward snubbers (fig. 3-19) make up an electromechanical system that restricts longitudinal and lateral motion of the mounted missile. This system prevents accidental launch or release during catapult takeoff or arrested landings. A slotted detent wrench/safety pin is installed through the mechanism assembly to prevent movement of the aft detent and to safe the launcher firing circuits. It is also used to raise the aft detent lug sufficiently to clear the missile hanger during loading. The slotted detent wrench/safety pin is removed before flight. When the detent is down (normal), the striker points make contact with the buttons (contacts) on the forward hanger of the missile. The forward striker point does not have a function for the missile; the aft striker point makes contact between the missile and the firing safety switch. NITROGEN CONTROLVALVE.— The nitrogen control valve is a solenoid-operated shutoff valve that controls the flow of nitrogen from the receiver assembly to the missile. Operation of the control valve is controlled from the cockpit by the pilot. Power Supply One power supply is available for use in the launcher. Power supply PP-2581/A is a single-phase power supply. It is a self-contained unit with connectors on each end. The aft connector links the power supply and the mechanism assembly. The forward connector provides the connection to the missile’s umbilical cable. Forward Fairing Assembly The forward fairing assembly is an aluminum casting that mounts to the forward end of the outer housing to provide an aerodynamic nose to the front of the launcher. It has two doors that are spring-loaded to open. These doors provide access to the umbilical hook support assembly. Umbilical Hook Support Assembly The umbilical hook support assembly mounts to the forward housing rails and, during missile loading, is connected to the missile umbilical shear block. At missile launch, the mechanism snaps up, retracting the sheared end of the umbilical cable into the launcher to prevent interference with the missile hangers. Fin Retainer Assemblies Two fin retainer assemblies are mounted to the forward end of the housing assembly beneath the forward fairing assembly. The fin retainer is a small, U-shaped bracket that contains two spring retainers that Figure 3-19.—Mechanism assembly detent and snubbers. 3-24







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