
Black overall and a red band around the nose. One yellow and one white band are forward of the suspension lug.
A cast steel nose piece is screwed into a tubular-steel body. The orifice in the nose measures 3 inches in diameter. A tail cone is welded to the after end of the body. A fuze adapter is welded onto the apex of the cone.
Type 1 tail fuze pocket has three threads and then an annular groove.
Four fins are welded to the tail cone and braced by box-type struts, a single set for 50-kg. bombs and a double set for 100-kg. bombs. A tail brake is fitted to the after end of the tail of the bombs.
Filler is 4 blocks of picric acid. Filler weight is 103 lbs (46.8 kg).
General Information, Japanese Army Bombs
Nose, C-3(a), Type 1 Long Delay
Tail, B-1(b), Type 1 15 Second Delay