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| Japanese Explosive Ordnance – Army Ammunition – Navy Ammunition |
| Chapter 4 – Section 1 |
| ARMY PROJECTILES |
| Type 90 - 7-cm (75-mm) Smoke (W.P.) Projectile |
| Weight of projectile, filled: 5.72 kg. (12.60 pounds). |
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Bursting charge: 0.10 kg. (0.22 pounds). "ONA", a 50-50 mixture of picric acid and dini-tronaphthalene in a performed, paper-wrapped block. |
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Chemical agent: 700 grams. White phosphorus sealed in a soldered brass can which fits into the lacqured cavity below the bursting charge. |
| Diameter at bourrelet: 75 mm (minus tol.). |
| Length over all (without fuze): 292 mm (11 1/2 inches). |
| Length protruding from case (without fuze): 253 mm (10 inches). |
| Width of rotating band: 10 mm. |
| Fuzing: Type 88 instantaneous nose fuze (gun type). |
| Weapons in which used: |
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Type 41 mountain gun (regimetal gun): Case, 7 1/4 inches. |
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Type 94 mountain gun: Case, 11 9/16 inches. |
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Type 38 field gun group: Case, 11 9/16 inches. |
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Type 90 field gun: Case, 16 11/16 inches. |
| Screening capacity (Japanese figures): |
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Height, 20 meters. |
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Width, 20 meters. |
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Duration, 1 to 2 minutes. |
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Figure 263 – Type 90 7-cm Smoke (W.P.) Projectile. |
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