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| Japanese Explosive Ordnance – Army Ammunition – Navy Ammunition |
| Chapter 4 – Section 1 |
| ARMY PROJECTILES |
| Type 90 - 7-cm (70-mm) H.E.-A,A. Long-Pointed Projectile |
| Weight of projectile, filled (TNT): 6.53 kg. (14.37 pounds). |
| Weight of filling: 0.385 kg. (0.85 pounds). |
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Filling: Standard, TNT, cast directly into lacquered cavity (recovered); alternate picric acid (documentary evidence). |
| Diameter at bourrelet: 75 mm (minus tol.). |
| Length over-all (without fuze): 257 mm (10 1/8 inches). |
| Length projecting from case: 202 mm (7 15/16 inches). |
| Width of forward rotating band: 9.5 mm. |
| Width of after rotating band: 9.5 mm. |
| Width of space between rotating bands: 6.5 mm. |
| Width of copper bourrelet: 14 mm. |
| Distance form base to after edge of bourrelet: 140 mm. |
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Fuzing: Type 89 long-pointed powder time fuze in nose. An auxiliary fuze armed by set-back and centrifugal force is used immediately below the time fuze. |
| Weapons in which used: |
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Type 11th-year 7.5-cm field A.A. gun. |
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Type 88 7-cm field A.A. gun, case, 19 9/16 inches. |
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Type 88 7-cm field A.A. gun (special), case, 19 9/16 inches. |
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Figure 248 – Type 90 7-cm High-Explosive Antiaircarft Long-Pointed Projectile. |
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