Description
Black overall with a red tipped nose. Size and type of bomb are stenciled forward of the suspension lug. Place and date of manufacture are stenciled aft.
The body is constructed of a light sheet steel cylinder which surrounds a steel central burster tube. The space between the tube and outer casing is filled with steel pellets set in concrete.
The nose section is welded to the barrel. A steel adapter ring is welded to the end of this section. The adapter ring is internally threaded to receive another ring which contains the nose fuze pocket.
The central exploder tube contains two tinned steel canisters. The forward container is filled with black powder. The larger after container is filled with a high explosive.
The tail cone is welded to the barrel and has a fuze pocket at its apex.
Four tail fins are welded to the tail cone and braced by a single set of box type struts.
The bomb body and tail cone may be pierced by 4 rows of holes 90° apart. Each row contains 11 holes which are 1/64 inch in diameter. It is assumed that the purpose of the holes is to release the moisture and air in the newly cast concrete filling.
Hazardous Components
Main filling is steel pellets set in concrete. Central tube contains black powder and high explosive (2,8 lbs, 1.3 kg).
See Also
General Information, Japanese Army Bombs
Nose, A-2(b), Type 12 Year Instantaneous
Nose, A-2(d), Type 1 Instantaneous
Source(s)
