
The bomb is gray overall with a red band on the nose and red tail struts. Four longitudinal grooves are painted red.
A cast steel nose piece is attached to a longitudinally welded steel body by a continuous weld. The nose piece contains a gaine well surrounded by an explosive charge which in turn is surrounded by a wooden filler plug. The body has 4 external longitudinal grooves 90° removed from each other. The tail cone is welded to a collar which fits into the body and is held there by a single row of 16 screws.
The tail cone is constructed of 1/8 inch steel and is welded longitudinally. Four steel fins are welded to the cone and are braced by a single set of box-type struts.
The filling consists of 152 phosphorous filled steel pellets contained in three cylindrical steel canisters. Each canister is filled with pellets and the space not occupied by the pellets is filled with white phosphorus. The canisters are covered with a heavy wax coating.
There is a charge of type 98 explosive in the nose piece of the bomb.
Weight of filling is 107 lbs, 48.6 kg.
General Information, Japanese Navy Bombs
Nose, A-1(b)
Nose, A-1(c)
Nose, A-3(a), Type 97 Mk 2 Model 2
Nose, A-3(c), Type 2 Initiator
Nose, A-3(d), Type 97 Mk 2 Model 1
Nose, A-3(e), Type 3 Initiator
Nose, A-3(f), for Type 2 No. 50 Ordinary Model 1