Description
The Mk IIA has a wide use in major caliber shell.
The booster charge of about 4.4 ounces of tetryl is contained in a booster casing which is assembled with threads into the lower part of the adapter. A fuze socket of a shape to receive the lower part of the M46 or M47 Fuze is press-fit into the adapter and extends into the booster charge. Some boosters are charged with half tetryl and half TNT. In such case, the tetryl surrounds the fuze socket. The adapter has outside threads at the bottom for threading into the nose bushing of the shell. Inside threads at the top receive the exterior threads of the M46 or M47 Fuze.
Functioning
No information about functioning.
See Also
Source(s)
TM 9-1904, Ammunition Inspection Guide (1944)
