ADAPTER BOOSTERS

An adapter booster is needed to install mechanical fuzes in the Mk 80 (series) general-purpose bombs. The adapter boosters currently in use are the M148/T45E, M148E1 (nose), and the M150/T46 (tail).

M148/M148E1/T45 (Series) Adapter Booster

The M148/M148E1/T45 (series) adapter booster (fig. 1-7) permits the use of mechanical nose fuzes in the Mk 80 (series) bombs. The adapter booster is externally threaded for installation in the bomb fuze well and internally threaded for installation of the fuze. The casing contains the booster charge and is threaded onto the base of the adapter.

The M148E1 adapter booster is similar in external appearance to the earlier M148/T45 (series). Differences are the nomenclature marking on the face of the adapter booster collar, the words THERMALLY PROTECTED in bold black letters, and a yellow band around the adapter booster casing, which indicates that it is loaded with explosives. The M148E1 was developed for use with thermally protected bombs.

Figure 1-7.-Adapter-booster M148/E1 (series). 1-13

Figure 1-8.-Adapter-booster M150/T46 (series).

Adapter booster M150/T46 (Series) internal construction, and they may be used interchangeably.

_{The adapter booster M150/T46 (series) (fig. 1-8)} The M150/T46 (series) adapter boosters consist of permits use of mechanical tail fuzes with Mk 80 (series) two separate explosive components. The primary bombs. The M150/T46 adapter boosters differ only in adapter booster receives a 2.0-inch diameter fuze. The 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.