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| Japanese Explosive Ordnance – Army Ammunition – Navy Ammunition |
| Chapter 5 - Section 1 |
| NAVY PROJECTILES |
| 12-cm (120-mm) (4.7-Inch) High-Explosive (Ordinary Mk 3 Mod 1) |
| Weight of filled projectile (without fuze): 44.75 pounds. |
| Weight of projectile, empty: 41.14 pounds. |
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Weight stamped on rotating band (sample): 18.520 kg. (varies with individual projecti-les). |
| Length of projectile (without fuze or adapter): 14.1 inches. |
| Diameter at bourrelet: 4.7 inches (119.5 mm). |
| Distance from base to rotating band: 0.78 inch. |
| Width of rotating band: 1.95 inches. |
| Radius of ogive: 4 cal. |
| Filling: Cast picric acid (shimose) 3.61 pounds. |
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The charge consists of two blocks of explosive cast and sealed in a waxed paper contai-ner, encased in a heavy cotton-flannel bag and sealed in the projectile with paraffin. |
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Fuzing: |
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a. Width adapter: Type 5-year point detonating fuze. |
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b. Without adapter: Type 88 point detonating fuze. |
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This projectile cannot be fuzed with standard mechanical time fuze for A.A. use because it will not accomomodate the auxiliary gaine used with these fuzes. |
| Weapons in which used: |
| British type 12-cm/40 gun (low angle). |
| Type 3-year 12-cm/45 gun (low angle). |
| Type 11-year 12-cm/45 gun (low angle). |
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Figure 386 – 12-cm High-Explosive (Ordinary Mk 3 Mod 1). |
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