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| Japanese Explosive Ordnance – Army Ammunition – Navy Ammunition |
| Chapter 4 – Section 1 |
| ARMY PROJECTILES |
| 9-cm (90-mm) High-Explosive Projectile |
| Weight of projectile, filled: 7.79 kg (17.13 pounds). |
| Weight of filling: 0.59 kg. (1.3 pounds). |
| Filling: Crude TNT. |
| Diameter at bourrelet: 90 mm (3 17/32 inches). |
| Length over all (without fuze): 265.1 mm (10 7/16 inches). |
| Length of projectile body (without nose piece): 209.6 mm (8 1/4 inches). |
| Length protruding from case (without fuze): 246.1 mm (9 11/16 inches). |
| Width of Rotating Band: No data. |
| Fuzing: |
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Type 88 instantaneous nose fuze (howitzer-mortar type). |
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Type 88 short-delay nose fuze (howitzer-mortar type). |
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Weapons in which used: This is an antiquated weapon classified as a mortar by the Ja-panese by virtue of length of tube, muzzle velocity, etc., but bearing only a remote re-semblance to other Japanese mortars. |
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It is breech-loading, using an unterrupted thread breechblock, and employs projectiles embodying the conventional features of design of common breech-loading artillery pie-ces. |
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Remarks: The body of this projectile is painted black over-all. There is a shallow groove immediately below the bourrelet which may be painted yellow or green. |
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Figure 270 – 9-cm High-Explosive Projectile. |
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