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Figure 7-17.-P-3C ordnance stations
HELICOPTER SEARCH STORE SYSTEM

Aviation Electronics Technician 1 (Organizational)
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Figure 7-20.-S-3A SLT arrangement. FIXED-WING SEARCH STORE SYSTEMS The search store systems of the P-3C and the S-3A aircraft consist mainly of the equipment and accessories necessary to carry and release sonobuoys. The sono systems also have the capability for carriage and release of several other search related stores. Part of the system consists of unpressurized, size A sonobuoy launch tubes (SLTs) installed in the underside of the aircraft fuselage. Forty-eight of the SLTs on the P-3C and all of the S-3A SLTs (60) are of this type. These SLTs are not accessible from inside the pressurized aircraft. Figure 7-19 shows the arrangement of the P-3C SLTs (as you lookup at the lower fuselage), while figure 7-20 shows the S-3A arrangement. The P-3C also has three pressurized size A SLTs (fig. 7-21) and one unpressurized size B free-fall chute. These are accessible from inside the aircraft, and are reloadable in flight. Size A chutes are approximately 5 inches in diameter, and the size B chute is approximately 7 inches in diameter. The size B chute is a tube with a pressure-sealing cover at the top end. If it is pressurized, the cabin of the aircraft must be depressurized before you open the Figure 7-21.-Pressxurized size A sonobuoy launch tubes. 7-13







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