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| Japanese Explosive Ordnance – Bombs, Bomb Fuzes, Land Mines,
Grenades, Firing Devices and Sabotage Devices |
| Chapter 1 – Section 1 |
| Japanese Army Bombs |
| Type 94 50-kg., Type 94 and Type 3 100 kg. High-Explosive Bombs |
| Fuzes: A-2 (a), A-2 (b), A-2 (c); B-1 (a), B-1 (b); D-5 (a). |
| 50 kg. | 100 kg. | |
| Over-all length | 41 inches. | 53 inches. |
| Length of body | 24 1/2 inches. | 31 1/4 inches. |
| Diameter of body | 7 inches. | 9 1/2 inches. |
| Thickness of wall | 1/4 inch. | 13/32 inch. |
| Material of wall: Tubular steel. |
| Type of suspension: Horizontal. |
| Suspension lug: Normal Army suspension lug. |
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Color and markings: Black over-all with a red band around the nose and a white band and yellow band around the body just forward of the suspension lug. |
| 50 kg. | 100 kg. | |
| Length of tail | 16 5/8 inches. | 21 3/4 inches. |
| Width of tail | 9 1/2 inches. | 13 1/4 inches. |
| Width of tail fins | 3 1/2 inches. | 5 7/16 inches. |
| Dimension of tail struts | 6 7/8 x 1 9/16 x 3/12 inches. | Forward struts: 9 7/18 x 1 3/16 x 3/32 inches. After struts: 9 7/16 x 1 9/16 x 3/32 inches. |
| Materail of tail | Sheet steel. | Sheet steel. |
| Type of filling | 3 blocks of picric acid. | Type 94: 4 blocks of picric acid. Type 3: 5 blocks of picric acid. |
| Weight of filling | 44 pounds. | 97 pounds 12 ounces. |
| Total weight of bomb | 110 pounds. | 220 pounds. |
| Charge/weight ratio | 40 percent. | 42.5 percent. |
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Construction of body: Type 94, 50-kg. and 100-kg.: A cast-steel nose is screwed into a tubular steel body. A tail cone is welded to the after end of the body. |
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Type 3, 100-kg.: A cast steel nosepiece is welded to a tubular-steel body. A tail cone is welded to a collar which is screwed into the after end of the body. |
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Construction of tail: Four tail fins are spot welded to the tail cone and are braced by box type struts. The 50-kg. bomb has a single set of struts. The 100-kg. bomb has two sets of struts. |
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Remarks: The type 94, 100-kg. bomb may vary in its explosive filling: Variations include: (1) Picric acid, 78 percent; TNT, 22 percent in 4 preformed blocks. (2) Ammonium nitrate, 78 percent; RDX, 22 percent cast into the bomb. |
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Figure 4 - Type 94 50-kg., Type 94 and Type 3 100-kg. High-Explosive Bombs. |
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