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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). |
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. |
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: |
Type 41 mountain gun (regimetal gun): Case, 7 1/4 inches. |
Type 94 mountain gun: Case, 11 9/16 inches. |
Type 38 field gun group: Case, 11 9/16 inches. |
Type 90 field gun: Case, 16 11/16 inches. |
Screening capacity (Japanese figures): |
Height, 20 meters. |
Width, 20 meters. |
Duration, 1 to 2 minutes. |
Figure 263 – Type 90 7-cm Smoke (W.P.) Projectile. |
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