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| Japanese Explosive Ordnance – Army Ammunition – Navy Ammunition |
| Chapter 4 – Section 1 |
| ARMY PROJECTILES |
| Type 13 Year Smoke (W.P.) Projectile |
| Weight of projectile, filled (without fuze): 33.63 kg. (74.25 pounds). |
| Bursting charge (cast picric acid): 1 kg. (2.2 pounds). |
| Chemical agent: 3.62 kg. (8 pounds). |
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W.P. is contained in a brass cylinder fitted below the bursting charge. To prevent move-ment within the projectile, the container is surrounded by wax. |
| Diameter at bourrelet: 149.2 mm (5 7/8 inches). |
| Length over all (without fuze): 487.4 mm (19 7/16 inches). |
| Length protruding from case (without fuze): 471.5 mm (18 9/16 inches). |
| Width of rotating band: 15.0 mm (19/32 inch). |
| Fuzing: Type 88 instantaneous nose fuze (howitzer, mortar). |
| Weapons in which used: |
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4th-year type howitzer: Case A, 10 3/16 inches; case B, 8 7/8 inches. |
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Type 96 howitzer: Case 12 5/8 inches. |
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Type 38 howitzer: Case 4 1/4 inches. |
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Figure 292 – Type 13-Year Smoke (W.P.) Projectile. |
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