ELECTRICAL FUZES

T46 (series) contains a fuze adapter sleeve for use with the 1. 5-inch diameter fuze. A hole is drilled through the threads of the primary adapter booster for insertion of a locking pin for use with the long-delay fuze This pin locks the adapter booster to the base plug of the bomb and prevents removal of the adapter booster while the fuze is installed. The M150 has a yellow band around the adapter booster casing, which indicates that it is loaded with explosives. ELECTRICAL FUZES LEARNING OBJECTIVE: Identify the various types of electrical fuzes to include their physical description and functional operation. The Mk 344 (fig. 1-9) and Mk 376 (fig. 1-10) electric bomb fuzes provide an all-electric capability for the Mk 80 (series) bombs with either conical or retarding fins, thermally protected bombs, and laser-guided bombs (LGB). Electric fuzes require an electric pulse from the aircraft fuze function control (FFC) system. Figure 1-9.—Mk 344 Mods 0 and 1 electric fuzes. Figure 1-10.—Mk 376 Mod 0 electric fuze. The FFC gives in-flight selection of function delay and arming delay times. The Mk 344 and 376 fuzes are used with the Mk 43 target-detecting device for airburst capability. They may also be used with mechanical nose fuzes for additional fuzing options. DESCRIPTION The Mk 344 Mod 0 and Mod 1 and Mk 376 Mod 0 electric tail fuzes are detonator safe. The boosters contain 4.3 ounces of tetryl explosive. They are classified HERO SAFE, and no unusual RADHAZ precautions are required under normal operating conditions. The Mk 344 Mod 0 and Mod 1 fuzes are identical, except that the retard sensor has been removed from the Mod 1. The Mk 344 Mod 0 or Mod 1 is not used in the retarded mode of delivery and should never be configured for this type of delivery. The fuzes are similar in appearance, but they are readily identifiable by decals. 1-15