|
|
| Japanese Explosive Ordnance – Army Ammunition – Navy Ammunition |
| Chapter 5 - Section 1 |
| NAVY PROJECTILES |
| (Type 3 Ordinary) 12.7-cm (127-mm) (5-Inch) Incendiary Shrapnel |
| Assembled round: |
| Weight of complete round: 78.36 pounds. |
| Length of complete round (without fuze): 36.43 inches. |
| Projectile: |
| Weight of filled projectile (without fuze): 53.21 pounds. |
| Weight of empty projectile: No data. |
|
Weight stamped on rotating band (sample): 17.17 kg. (varies with individual projectiles). |
| Dimensions: |
| Length of projectile (without fuze): 14.8 inches. |
| Diameter at bourrelet: 4.97 inches (126.3 mm). |
| Distance from base to rotating band: 1.25 inches. |
| Width of rotating band: 2.0 inches. |
| Radius of ogive: 6 cal. |
| Filling: |
| Cast picric acid (shimose): 162 grams. |
| Tetryl: 2.3 grams. |
| Lead Azide: 0.13 grams. |
| Black powder: 35 grams. |
|
Incendiary charge (43 steel pellets 50 mm in length and 20 mm in diameter) filled with a dry incendiary mix of the following composition: |
| Magnesium: 54 percent. |
| Barium dioxide: 26 percent. |
| Rubber: 15 percent. |
| Iron oxide: 1.5 percent. |
| Sulphur: 3 percent. |
| Fuzing: Type 91 mechanical time fuze. |
| Weapon in which used: Type 89 12.7-cm/40 high-angle gun. |
|
Remarks: The black powder charge in the nose ignites the incendiary pellets and flashes down the central tube igniting relay disks and the expelling charge. |
|
The expelling charge ejects the incendiary pellets and ignites a primer in the base section which detonates the gaine and bursting charge. |
|
Figure 397 – 12.7-cm Incendiary Shrapnel (Ordinary Type 3). |
|
|
 |
