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| Japanese Explosive Ordnance – Army Ammunition – Navy Ammunition |
| Chapter 4 – Section 1 |
| ARMY PROJECTILES |
| Type 1 - 47-mm High Explosive Projectile |
| Weight of complete round: 2.44 kg. (5.4 pounds). |
| Weight of projectile (without fuze): 1.15 kg. (2.5 pounds). |
| Weight of filling: 0.087 kg. (0.2 pound). |
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Filling: Two preformed paper-wrapped blocks taped together and waxed. The forward block consists of two pellets of picric acid – a ring pellet around the gaine and a solid pellet beneath the gaine. The after block is one piece of cast TNT. |
| Diameter at bourrelet: 47 mm ( minus tol.). |
| Length of projectile (without fuze): 140 mm (5 1/2 inches). |
| Length of propellant case: 283 mm (11 1/8 inches). |
| Length of assembled round (without fuze): 389 mm (15 5/16 inches). |
| Diameter of base of case: 72 mm (2 13/16 inches). |
| Weapons in which used: |
| Type 1 antitank gun. Type 1 tank gun. |
| Fuzing: Type 88 Inst. Nose fuze (gun type), type 88 short-delay nose fuze (gun type). |
| Weight of propellant: 0.398 kg. (0.9 pound). |
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Propellant: Single perforated cylindrical grains (7/16 inch long, 5/32 inch diameter) of a graphited double-base powder of the following composition: |
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Nitrocellulose: 60.0 percent. |
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Nitroglycerine: 34.5 percent. |
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Ethyl centralite: 3.0 percent. |
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Diphenyl formamide: 2.5 percent. |
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Figure 230 – Type 1 47-mm High-Explosive Projectile. |
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