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| Japanese Explosive Ordnance – Army Ammunition – Navy Ammunition |
| Chapter 4 – Section 1 |
| ARMY PROJECTILES |
| Type 90 - 7-cm (75-mm) H.E. Long-Pointed Projectile |
| Weight of Projectile, Filled (without fuze) (TNT): 6.17 kg. (13.62 pounds). |
| Weight of filling: 0.49 kg (1.08 pounds). |
| Filling: |
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Standard, TNT cast directly into a lacquered cavity (documentary). |
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Alternate "HEINEI" trinitrophenetole (recovered). |
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Indicated by
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| Diameter at bourrelet: 75.0 mm (minus tol.). |
| Length over all (without fuze): 317.5 mm (12 1/2 inches). |
| Length protruding from case: 267.0 mm (10 1/2 inches). |
| Width of rotating bands: |
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Uper: 10.6 mm. |
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Lower: 9.6 mm. |
| Fuzing: |
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Type 88 instantaneous (gun). |
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Type 88 delay (gun). |
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Operation and employment: It is believed this projectile was designed primarily to adapt the type 88, 75 mm, high velocity A.A. gun to a dual-purpose field gun (i.e., for air and ground targets). The ballistic form of this projectile approximates that of the type 90 long-pointed A.A. projectile, when the A.A. time fuze is installed. The projectile is also used for other weapons, as shown below. |
| Weapons in which used: |
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Type 88 field A.A. (special), case, 19 9/16 inches. |
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Type 38 field gun group (four weapons), case, 11 9/16 inches. |
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Type 90 field gun, case, 16 11/16 inches. |
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Type 94 mountain gun. |
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Remarks: When this projectile is cased for use in the type 88 field A.A. gun (special), a reduced propelling charge is used. This reduced charge is indicated by a Roman numeral II stenciled on the case. |
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Figure 249 – Type 90 7-cm High-Explosive Long-Pointed Projectile. |
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painted on body.