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| Japanese Explosive Ordnance – Army Ammunition – Navy Ammunition |
| Chapter 5 - Section 1 |
| NAVY PROJECTILES |
| 12-cm/Short (120-mm) (4.7-Inch) High-Explosive |
| Assembled round: |
| Weight of complete round: No data. |
| Length of complete round (with type 0 fuze): 24.8 inches. |
| Projectile: |
| Weight of filled projectile (without fuze): 26.0 pounds. |
| Weight of projectile, empty: 20.5 pounds. |
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Weight stamped on rotating band (sample): 9.340 kg. (varies with individual projectiles). |
| Dimensions: |
| Length of projectile (without fuze): 12.6 inches. |
| Diameter at bourrelet: 4.7 inches (119.5 mm). |
| Distance from base to rotating band: 1.5 inches. |
| Width of rotating band: 1.0 inches. |
| Radius of ogive: No data. |
| Filling: |
| Trinitroanisole (type 91 explosive): 5.5 pounds. |
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The charge consists of a single block of explosive cast and sealed in waxed paper con-tainer, encased in a heavy cotton flannel bag and sealed in the projectile with paraffin. |
| Fuzing: |
| Type 0 mechanical time fuze (red-nosed) for A.A. use. |
| Type 88 Model 4 point detonating fuze. |
| Weapon in which used: Short 12-cm gun. |
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Remarks: The extremely thin wall of this projectile is possible only by virtue of the low muzzle velocity of the howitzer-like weapon. The high charge/weight ratio is intended for effectivencess in use as an underwater charge against submarines, though the projectile may also be time-fuzed for anti-aircraft use. |
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Figure 383 – 12-cm Short High-Explosive. |
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