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| Japanese Explosive Ordnance – Army Ammunition – Navy Ammunition |
| Chapter 4 – Section 1 |
| ARMY PROJECTILES |
| Type 92 - 7-cm (70-mm) High-Explosive Projectile |
| Weight of complete round: 4.48 kg. (9.90 pounds). |
| Weight of projectile fuzed: 3.81 kg. (8.38 pounds). |
| Weight of filling: 0.59 kg. |
| Filling: |
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Standard, cast TNT. |
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Alternate, pressed mixture of RDX and ammonium nitrate. |
| Diameter at bourrelet: 70 mm (minus tol.). |
| Length of projectile (without fuze): 234 (9 1/4 inches). |
| Length of propellant case: 101 mm (4 inches). |
| Length of assembled round (without fuze): 306 mm (12 1/16 inches). |
| Diameter of base of case: 81 mm (3 3/16 inches). |
| Width of rotating band: 10 mm. |
| Weapons in which used: Type 92 infantery gun (howitzer). |
| 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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Propellant: 50 grams of smokeless powder in 0.5 mm square flakes. This powder is con-tained in four pads may be sewing portions of the powder between two dark blue silk dics. The discs are not in uniform size, holding 5.4, 8.9, 16.8, and 18.7 grams of powder each. A fifth disc, light blue in color, contains a 3.1 gram black powder ignition charge. |
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The propellant cases are of two designs. The newer type, designated "B" (OTSU) by the Japanese, is one piece and slips off of the projectile to change the propellant charge. An older design, pressumably "A" has a threaded base which may be unscrewed to vary the charge. |
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Remarks: This projectile is the same as the high-explosive, type 92, used in the type 94 tank gun. |
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Figure 236 – Type 92 7-cm High-Explosive Projectile. |
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